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Re: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel
 
- To: xen-devel@xxxxxxxxxxxxxxxxxxx, enming.teo@xxxxxxxxxxxxxxx
 
- From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
 
- Date: Mon, 27 Jul 2009 03:15:24 -0700 (PDT)
 
- Cc: 
 
- Delivery-date: Mon, 27 Jul 2009 03:16:39 -0700
 
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- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
 
 
 
OK. What happens if you put the same vif=['bridge=...'] in OSOL installation profile. Are you unable to get IP for install in this case ?
  Boris.
  --- On Mon, 7/27/09, Teo En Ming <enming.teo@xxxxxxxxxxxxxxx> wrote:
  From: Teo En Ming <enming.teo@xxxxxxxxxxxxxxx> Subject: Re: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx Date: Monday, July 27, 2009, 5:57 AM
 
 
 
 
 
 
Dear Boris,
 
   
 
My CentOS 4.7 32-bit PV guest is getting the dynamic IP address 
assignment from the dnsmasq dhcp server I have setup and configured on Xen 
Dom 0 OpenSUSE 11.1 32-bit host correctly.
 
 
 
So I think the issue is OpenSolaris specific.
    
 
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering)
 
Technical Support Engineer
 
Information Technology Department
   Asiasoft Online Pte Ltd
   Tampines Central 1 #04-01 Tampines Plaza
   Singapore 529541
 
Republic of Singapore
   Mobile Phone: +65-9648-9798
   MSN: teoenming@xxxxxxxxxxx
   
   
 
 -----Original 
Message-----
    From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
    To: xen-devel@xxxxxxxxxxxxxxxxxxx, enming.teo@xxxxxxxxxxxxxxx
    Date: Mon, 27 Jul 2009 01:57:43 -0700 (PDT)
    Subject: Re: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's 
PVOPS Kernel
   
   
  
    
      Please, submit "brctl show"
       
       Boris.
       
       --- On Mon, 7/27/09, Teo En Ming 
<enming.teo@xxxxxxxxxxxxxxx> wrote:
       
      
         From: Teo En Ming <enming.teo@xxxxxxxxxxxxxxx>
         Subject: Re: [Xen-devel] Unable to Configure Xen Dom 0 in 
Jeremy's PVOPS Kernel
         To: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>, 
xen-devel@xxxxxxxxxxxxxxxxxxx
         Date: Monday, July 27, 2009, 12:58 AM
         
         
         
          Dear Boris,
           
           
           
          I have changed my opensolaris vm configuration. Please see 
http://1.bp.blogspot.com/_zzjv8MCM2sk/Sm0yIVtghCI/AAAAAAAAAGE/ZGkYbBhhx5w/s1600-h/01.jpeg
           
           
           
           
http://1.bp.blogspot.com/_zzjv8MCM2sk/Sm0yIDWV0RI/AAAAAAAAAF8/aP9riPOEZyk/s1600-h/02.jpeg
           
           
           
           
http://2.bp.blogspot.com/_zzjv8MCM2sk/Sm0yHzY3WCI/AAAAAAAAAF0/gFxy7zJZXi8/s1600-h/03.jpeg
           
           
           
           
http://3.bp.blogspot.com/_zzjv8MCM2sk/Sm0yHm0RO8I/AAAAAAAAAFs/hIgei-yTbx4/s1600-h/04.jpeg
           
           
           
           
http://1.bp.blogspot.com/_zzjv8MCM2sk/Sm0yHcUoQ_I/AAAAAAAAAFk/9AiZKPqmG80/s1600-h/05.jpeg
           
           
           
           
http://4.bp.blogspot.com/_zzjv8MCM2sk/Sm0zdXRfyuI/AAAAAAAAAGM/ZqOaIbmTzB8/s1600-h/06.jpeg
           
           
           
          I see my OpenSolaris guest sending DHCPDISCOVER and my 
OpenSUSE 11.1 32-bit Dom 0 Xen host sending DHCPOFFER but the OpenSolaris 
virtual machine is not setting the offered dynamic IP address to it's 
virtual NIC.
             
           
           
           
          
              
           
          Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering)
           
          Technical Support Engineer
           
          Information Technology Department
             Asiasoft Online Pte Ltd
             Tampines Central 1 #04-01 Tampines Plaza
             Singapore 529541
           
          Republic of Singapore
             Mobile Phone: +65-9648-9798
             MSN: teoenming@xxxxxxxxxxx
             
             
           
          
          
 -----Original Message-----
              From: "Boris Derzhavets" <bderzhavets@xxxxxxxxx>
              To: <xen-devel@xxxxxxxxxxxxxxxxxxx>, 
<enming.teo@xxxxxxxxxxxxxxx>
              Date: Mon, 27 Jul 2009 13:01:54 +0800
              Subject: Re: [Xen-devel] Unable to Configure Xen Dom 0 in 
Jeremy's PVOPS Kernel
             
             
            
               
                
                  | 
                   
                      View:-
                     
                      
 http://www.opensolaris.org/jive/thread.jspa?threadID=104509&tstart=75
                     
                      To switch OSOL DomU run with static IP:-
                     
                      pfexec svcadm disable network/physical:nwam 
&& \
                      pfexec svcadm enable  
network/physical:default
                      pfexec ifconfig xnf0 down
                      pfexec ifconfig xnf0 192.168.1.102 netmask 
255.255.255.0 mtu 1492
                      pfexec ifconfig xnf0 up
                      pfexec route add default 192.168.1.102
                     
                      which i can/do @ installer time to use static IP 
assignements.  i just
                      can't seem to get them to 'stick' or 'be happy' 
after reboot and xen,
                      run-time launch.
                     
                      Use the same commands with the installed system.
                     
                      To make the settings permanent you also need 
(Jurgen Keil) :
                     
                      echo 192.168.1.102 netmask 255.255.255.0 mtu 1492 
> /etc/hostname.xnf0
                     
                      rm /etc/dhcp.xnf0
                     
                      echo 192.168.1.102 > /etc/defaultrouter
                     
                     
                      Boris.
                     
                      --- On Sun, 
7/26/09, Mr. Teo En Ming (Zhang Enming) 
 < enming.teo@xxxxxxxxxxxxxxx > wrote:
                   
                  
                      From: Mr. Teo En Ming (Zhang Enming) < 
enming.teo@xxxxxxxxxxxxxxx >
                      Subject: Re: [Xen-devel] Unable to Configure Xen 
Dom 0 in Jeremy's PVOPS Kernel
                      To: bderzhavets@xxxxxxxxx, 
xen-devel@xxxxxxxxxxxxxxxxxxx
                      Date: Sunday, July 26, 2009, 5:08 AM 
                   
                  
                    
I am 
using static IP address.
                     
                    --
  Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
  Technical Support Engineer
  Information Technology Department
  Asiasoft Online Pte Ltd
  Tampines Central 1 #04-01 Tampines Plaza
 
   Singapore  529541
   Republic of  Singapore
  Mobile Phone: +65-9648-9798
  MSN: teoenming@xxxxxxxxxxx
  
                    
                       
                        Boris Derzhavets wrote: 
                     
                     
                      
                        
                        
Does your OpenSuse 11.1 
32-bit has static IP address or it obtain it via DHCP ?
                            If second option is in place please submit
                            # brctl show
                           
                            Boris.
                           
                            --- On 
Sat, 7/25/09, Mr. Teo En Ming (Zhang Enming)   <enming.teo@xxxxxxxxxxxxxxx>
 wrote: 
                         
                        
                        
                           At the moment there is only one network card 
installed on my lab PC in my company running OpenSUSE 11.1 32-bit with Xen 
3.4.1-rc8 Dom 0 kernel 2.6.30-rc6 (jeremy). So when there are more network 
cards installed, there will be eth0, eth1, eth2 ethernet bridges, etc.
                             
                              Then I can assign the virtual network 
card in each virtual machine to a specific ethernet network bridge (out of 
many bridges) in Domain 0 using the vif command in guest domain 
configuration. 
                           
                          --
  Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
  Technical Support Engineer
  Information Technology Department
  Asiasoft Online Pte Ltd
  Tampines Central 1 #04-01 Tampines Plaza
 
   Singapore  529541
   Republic of  Singapore
  Mobile Phone: +65-9648-9798
  MSN: teoenming@xxxxxxxxxxx  
                          
                              Mr. Teo En Ming (Zhang Enming) wrote: 
                           
                           Dear Boris,
                             
                              The ethernet network bridge on OpenSUSE 
11.1 is eth0.
                           
                          --
  Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
  Technical Support Engineer
  Information Technology Department
  Asiasoft Online Pte Ltd
  Tampines Central 1 #04-01 Tampines Plaza
 
   Singapore  529541
   Republic of  Singapore
  Mobile Phone: +65-9648-9798
  MSN: teoenming@xxxxxxxxxxx  
                          
                              Boris Derzhavets wrote: 
                           
                           
                            
                              
                               This 
means that OSOL installer (by default ) will issue DHCPDISCOVER via your Xen 
bridge, looking for DHCP server on your LAN. Only on RHEL 5.3
                                  (F10 with Xen 3.3.1 src.rpm been 
installed along with generated packages) with libvirtd & dnsmasq up and 
running you can specify
                                   vif=['bridge=virbr0' ] to 
detect DHCP Server at your Dom0.
                                 
                                  View for instance :-
                                  
 
http://bderzhavets.wordpress.com/2009/05/07/backport-zfs-support-to-xen-331-f10-dom0-kernel-2630-rc3-tip/
                                 
                                  I don't have any experience with 
OpenSuse 11.1 . I hardly remind they tried to reproduce RH's technology. 
Most probably they did it in SLES 11 (not sure). Check for 
libvirtd&dnsmasq daemons up and running.
                                  But if your OpenSuse 11.1 Dom0 is on 
"dhcp" bridge itself , then no problems. Just vif=['bridge=eth0'].
                                 
                                  Boris.
                                 
                                  --- On Sat, 7/25/09, Mr. Teo En Ming (Zhang Enming)  < enming.teo@xxxxxxxxxxxxxxx >
 wrote:
                               
                               
                                  From: Mr. Teo En Ming (Zhang Enming) 
< enming.teo@xxxxxxxxxxxxxxx >
                                  Subject: Re: [Xen-devel] Unable to 
Configure Xen Dom 0 in Jeremy's PVOPS Kernel
                                  To: bderzhavets@xxxxxxxxx
                                  Cc: "Sander Eikelenboom" 
<linux@xxxxxxxxxxxxxx>, Pasi Kr@xxxxxxxxx, 
xen-devel@xxxxxxxxxxxxxxxxxxx
                                  Date: Saturday, July 25, 2009, 12:32 
PM 
                               
                              
                                 Dear 
Boris,
                                   
                                    This means I have to install a DHCP 
server or dnsmasq in my Dom 0, listening on my Dom 0's IP address, so that 
it can assign dynamic IP addresses to the DomU.
                                   
                                    By the way, are there any 
paravirtualized device drivers that I can install in DomU to improve the 
performance of the virtual machine?
                                   
                                    Thank you.
                                 
                                --
  Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
  Technical Support Engineer
  Information Technology Department
  Asiasoft Online Pte Ltd
  Tampines Central 1 #04-01 Tampines Plaza
 
   Singapore  529541
   Republic of  Singapore
  Mobile Phone: +65-9648-9798
  MSN: teoenming@xxxxxxxxxxx  
                                 
                                    Boris Derzhavets wrote:  
                                 
                                 
                                  
                                    | 
                                     >I 
noticed under the guest domain configuration there is a parameter called 
>'extra' kernel parameter. Does the 'nowin' argument stand for no 
>graphical windows?
                                       
                                        Login as jack/jack to text 
console.
                                       
                                        Wait until :-
                                       
                                        $ pfexec ifconfig -a
                                       
                                        will show up your IPv4 address
                                       
                                        $ mkdir .vnc
                                        $ cp .Xclients .vnc/xstartup
                                        $ vncserver
                                       
                                        Connect via vncviewer IP-DomU:1 
from another terminal session to OSOL DomU. In case OSOL installer will fail 
to obtain IP via DHCPDISCOVER,
                                        let me know. It might happen 
and requires Solaris Kernel Model Debugger
                                        to disable checksum offloading 
at boot up. Seems to be hardware dependent issue for OSOL 2009.06
                                       
                                        
**********************************
                                        Copy ramdisk and kernel to Dom0
                                        
**********************************
                                        
                                         
[root@ServerXen isos]# cat copy.sh
                                        
mount -o loop,ro osol-0906-x86.iso /mnt
                                        
cp /mnt/boot/amd64/x86.microroot /home/boris/solaris
                                        
cp /mnt/platform/i86xpv/kernel/amd64/unix /home/boris/solaris
                                        
                                       
                                       
                                        ***********************
                                        Installation profile:-
                                        ***********************
                                        
                                         
[root@ServerXen solaris]# cat osol200906.install
                                        
name = "sol0906"
                                        
vcpus = 1
                                        
memory = "1024"
                                        
kernel = "/home/boris/solaris/unix"
                                        
ramdisk = "/home/boris/solaris/x86.microroot"
                                        
extra = "/platform/i86xpv/kernel/amd64/unix - nowin -B 
install_media=cdrom" 
                                        
disk = ['phy:/dev/loop0,xvdc:cdrom,r','phy:/dev/sdb5,xvda,w']
                                        
# Would work as well
                                        
# disk = ['phy:/dev/loop0,6:cdrom,r','phy:/dev/sdb5,0,w']
 
                                        vif = 
['bridge=eth1']
                                         
                                        
                                        
                                       
                                        Boris
                                       
                                        --- On Sat, 7/25/09, Mr. Teo En Ming (Zhang Enming) 
< enming.teo@xxxxxxxxxxxxxxx >
 wrote:
                                     
                                    
                                        From: Mr. Teo En Ming (Zhang 
Enming) < enming.teo@xxxxxxxxxxxxxxx >
                                        Subject: Re: [Xen-devel] Unable 
to Configure Xen Dom 0 in Jeremy's PVOPS Kernel
                                        To: enming.teo@xxxxxxxxxxxxxxx
                                        Cc: "Sander Eikelenboom" 
<linux@xxxxxxxxxxxxxx>, "Boris Derzhavets" 
<bderzhavets@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, 
=?ISO-8859-1?Q?Pasi_K=E4r?=@xxxxxxxxx
                                        Date: Saturday, July 25, 2009, 
7:14 AM
                                     
                                    
                                      
                                       --
  Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
  Technical Support Engineer
  Information Technology Department
  Asiasoft Online Pte Ltd
  Tampines Central 1 #04-01 Tampines Plaza
 
   Singapore  529541
   Republic of  Singapore
  Mobile Phone: +65-9648-9798
  MSN: teoenming@xxxxxxxxxxx  
                                      
                                         
                                          Teo En Ming wrote:  
                                       
                                      
                                        
As a matter of fact, our servers are either Dell PowerEdge 1950/2950 and IBM 
xSeries. 
                                         
                                       
                                      
                                      
                                        
I am just testing it out on our lab PC first.
                                              
                                         
                                       
                                      
                                        
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering) 
                                         
                                       
                                      
                                        
 Technical Support Engineer 
                                         
                                       
                                      
                                        
 Information Technology Department
                                            Asiasoft Online Pte Ltd
                                            Tampines Central 1 #04-01 
Tampines Plaza
                                            Singapore 529541 
                                         
                                       
                                      
                                         Republic of Singapore
                                            Mobile Phone 
 : +65-9648-9798
                                            MSN: teoenming@xxxxxxxxxxx 
                                         
                                       
                                      
                                        
  
                                         
                                        -----Original Message-----
                                            From: "Teo En Ming" < 
enming.teo@xxxxxxxxxxxxxxx >
                                            To: "Boris Derzhavets" 
<bderzhavets@xxxxxxxxx>, "Pasi Kärkkäinen" <pasik@xxxxxx>
                                            Cc: Sander Eikelenboom 
<linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
                                            Date: Sat, 25 Jul 2009 
02:27:02 +0800
                                            Subject: Re: Re[8]: 
[Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel 
 
                                         
                                        
                                        
                                        
                                          
My next step will be a 64-bit Xen Dom 0 host.
                                                
                                           
                                         
                                        
                                          
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering) 
                                           
                                         
                                        
                                          
 Technical Support Engineer 
                                           
                                         
                                        
                                          
 Information Technology Department
                                              Asiasoft Online Pte Ltd
                                              Tampines Central 1 #04-01 
Tampines Plaza
                                              Singapore 529541 
                                           
                                         
                                        
                                           Republic of Singapore
                                              Mobile Phone 
 : 
+65-9648-9798
                                              MSN: 
teoenming@xxxxxxxxxxx 
                                           
                                         
                                        
                                          
  
                                           
                                          -----Original Message-----
                                              From: Boris Derzhavets 
<bderzhavets@xxxxxxxxx>
                                              To: Pasi Kärkkäinen 
<pasik@xxxxxx>, enming.teo@xxxxxxxxxxxxxxx
                                              Cc: Sander Eikelenboom 
<linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
                                              Date: Fri, 24 Jul 2009 
10:57:49 -0700 (PDT)
                                              Subject: Re: Re[8]: 
[Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel  
                                           
                                           
                                            
                                              | 
                                               
Teo, it is up to you how to manage, if you just having fun.
                                                  Otherwise, 
downloading 64-bit OpenSuse 11.1 ISO image
                                                  takes just 12-14 hr 
even at slow ADSL speed ( like 100 KB/sec).
                                                  Install takes 30 
minutes and brings you to the trusted results, instead
                                                  of wasting a lot of 
time in case of business environment assignment.
                                                  Pasi has 32-bit 
experience due to hardware limitations, which you don't
                                                  have.
                                                 
                                                  Boris.
                                                 
                                                  --- On Fri, 7/24/09, Teo En Ming < enming.teo@xxxxxxxxxxxxxxx >
 wrote: 
                                               
                                              
                                                  From: Teo En Ming 
< enming.teo@xxxxxxxxxxxxxxx >
                                                  Subject: Re: Re[8]: 
[Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel
                                                  To: "Boris 
Derzhavets" <bderzhavets@xxxxxxxxx>, "Pasi Kärkkäinen" 
<pasik@xxxxxx>
                                                  Cc: "Sander 
Eikelenboom" <linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
                                                  Date: Friday, July 
24, 2009, 12:56 PM 
                                               
                                              
                                                
                                                
                                                
                                                  
 My colleague installed OpenSUSE 11.1 32-bit on the Core 2 Duo 
machine in our labs. Please see my earlier replies in the same topic. 
 
                                                   
                                                 
                                                
                                                
                                                  
 I was too lazy to reformat and install 64-bit OpenSUSE, so I 
proceeded with Xen Dom 0 pvops kernel compilation on 32-bit Linux host. 
 
                                                   
                                                 
                                                
                                                
                                                  
 I admit I am getting a lot of headache. Haha.
                                                         
                                                   
                                                 
                                                
                                                  
 Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering) 
                                                   
                                                 
                                                
                                                  
 Technical Support Engineer 
                                                   
                                                 
                                                
                                                  
 Information Technology Department
                                                      Asiasoft Online 
Pte Ltd
                                                      Tampines Central 
1 #04-01 Tampines Plaza
                                                      Singapore 529541 
                                                   
                                                 
                                                
                                                   Republic of Singapore
                                                      Mobile Phone 
: 
+65-9648-9798
                                                      MSN: 
teoenming@xxxxxxxxxxx 
                                                   
                                                 
                                                
                                                  
  
                                                   
                                                  -----Original Message-----
                                                      From: Boris 
Derzhavets <bderzhavets@xxxxxxxxx>
                                                      To: 
enming.teo@xxxxxxxxxxxxxxx , Pasi Kärkkäinen <pasik@xxxxxx>
                                                      Cc: Sander 
Eikelenboom <linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
                                                      Date: Fri, 24 Jul 
2009 09:57:18 -0700 (PDT)
                                                      Subject: Re: 
Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel 
                                                   
                                                   
                                                    
                                                      | 
                                                       
 Once again, i don't see any reason to to run 32-bit OS on 
Core2Duo,
                                                          unless you 
like Xen head ache. Core development (PVOPS) is obviously
                                                          running in 
64-bit environment.
                                                         
                                                          Boris.
                                                         
                                                          --- On 
Fri, 7/24/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> 
 wrote: 
                                                       
                                                      
                                                          From: Boris 
Derzhavets <bderzhavets@xxxxxxxxx>
                                                          Subject: Re: 
Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel
                                                          To: 
enming.teo@xxxxxxxxxxxxxxx , "Pasi Kärkkäinen" <pasik@xxxxxx>
                                                          Cc: "Sander 
Eikelenboom" <linux@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
                                                          Date: Friday, 
July 24, 2009, 12:47 PM 
                                                       
                                                      
                                                         
                                                          
                                                            | 
                                                             
>After doing the 
above, I re-installed back the Xen hypervisor, libraries and tools, and also 
>the kernel, initrd, and modules. Then I proceeded to reboot my machine. 
After rebooting, > my CentOS 4.7 32-bit PV guest is still able to start 
and run! 
                                                               
                                                                Why it 
wouldn't ? If your image stays  the same.  
                                                             
                                                            
                                                               > I am still very puzzled! What causes the 
PV guest initially cannot start? Then what >subsequently causes the PV 
guest to suddenly be able to start and run??? 
                                                               
                                                             
                                                            
                                                             
                                                                That is 
not supposed to happen. I would suggest clean OS (without any built in xen 
presence) install , followed by  Xen 3.4.1+pvops kernel clean install.
                                                               
                                                                Boris.
                                                               
                                                                --- On 
Fri, 7/24/09, Teo En Ming < enming.teo@xxxxxxxxxxxxxxx >
 wrote: 
                                                             
                                                            
                                                                From: 
Teo En Ming < enming.teo@xxxxxxxxxxxxxxx >
                                                                
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's 
PVOPS Kernel
                                                                To: 
"Teo En Ming" < enming.teo@xxxxxxxxxxxxxxx >, "Pasi Kärkkäinen" 
<pasik@xxxxxx>
                                                                Cc: 
"Sander Eikelenboom" <linux@xxxxxxxxxxxxxx>, 
xen-devel@xxxxxxxxxxxxxxxxxxx
                                                                Date: 
Friday, July 24, 2009, 12:19 PM 
                                                             
                                                            
                                                              
                                                              
                                                              
                                                                 I am very puzzled. In investigating the cause 
of the sudden success of the CentOS 4.7 32-bit PV guest being able to run, I 
have uninstalled virt-manager and all of its dependencies:  
                                                                 
                                                               
                                                              
                                                              
                                                              
                                                              
                                                              
                                                              
                                                              
                                                              
                                                              
                                                              
                                                              
                                                                 Then I proceeded to "make uninstall" in 
xen-3.4-testing source tree, which also removed my self compiled Xen Dom 0 
pvops enabled kernel, initrd and kernel modules. 
                                                                 
                                                               
                                                              
                                                              
                                                                 After doing the above, I re-installed back the 
Xen hypervisor, libraries and tools, and also the kernel, initrd, and 
modules. Then I proceeded to reboot my machine. After rebooting, my CentOS 
4.7 32-bit PV guest is still able to start and run! 
                                                                 
                                                               
                                                              
                                                              
                                                                 I am still very puzzled! What causes the PV 
guest initially cannot start? Then what subsequently causes the PV guest to 
suddenly be able to start and run??? 
                                                                 
                                                               
                                                              
                                                              
                                                              
                                                              
                                                                 Anyway my CentOS 4.7 guest domain is now 
running. I shall now proceed to virtualize OpenSolaris 2009.06. 
                                                                 
                                                               
                                                              
                                                              
                                                              
                                                              
                                                              
                                                                 Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics 
Engineering) BEng(Hons)(Mechanical Engineering) 
                                                                 
                                                               
                                                              
                                                                 Technical Support Engineer 
                                                                 
                                                               
                                                              
                                                                 Information Technology Department
                                                                    
Asiasoft Online Pte Ltd
                                                                    
Tampines Central 1 #04-01 Tampines Plaza
                                                                    
Singapore 529541 
                                                                 
                                                               
                                                              
                                                                 
Republic of Singapore
                                                                    
Mobile Phone: +65-9648-9798
                                                                    
MSN: teoenming@xxxxxxxxxxx 
                                                                 
                                                               
                                                              
                                                                   
                                                                 
                                                                
-----Original 
Message-----
                                                                    
From: "Teo En Ming" < enming.teo@xxxxxxxxxxxxxxx >
                                                                    To: 
"Teo En Ming" < enming.teo@xxxxxxxxxxxxxxx >, "Pasi Kärkkäinen" 
<pasik@xxxxxx>
                                                                    Cc: 
Sander Eikelenboom <linux@xxxxxxxxxxxxxx>, 
xen-devel@xxxxxxxxxxxxxxxxxxx
                                                                    
Date: Fri, 24 Jul 2009 22:54:26 +0800
                                                                    
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's 
PVOPS Kernel 
                                                                 
                                                                
                                                                
                                                                
                                                                  It's very strange. Suddenly my CentOS 4.7 
32-bit PV guest is able to start!!! Previously it refuses to start at all. 
                                                                   
                                                                 
                                                                
                                                                
                                                                  I think I must have changed something in Dom 0 
when I attempted "yast --install virt-manager". This action might have 
solved the problem. When I tried to install virt-manager, it also tries to 
install xen-libs-3.3.1 and xen-tools-3.3.1 as dependencies. However, I 
started off my Xen Dom 0 pvops kernel install with Xen 3.4.1 rc8 branch. 
                                                                   
                                                                 
                                                                
                                                                
                                                                  I need to investigate more why suddenly my 
CentOS 4.7 32-bit PV guest is able to start.
                                                                      
  
                                                                   
                                                                 
                                                                
                                                                  Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics 
Engineering) BEng(Hons)(Mechanical Engineering) 
                                                                   
                                                                 
                                                                
                                                                  Technical Support Engineer  
                                                                   
                                                                 
                                                                
                                                                  Information Technology Department
                                                                      
Asiasoft Online Pte Ltd
                                                                      
Tampines Central 1 #04-01 Tampines Plaza
                                                                      
Singapore 529541 
                                                                   
                                                                 
                                                                
                                                                   
Republic  of Singapore
                                                                      
Mobile Phone: +65-9648-9798
                                                                      
MSN: teoenming@xxxxxxxxxxx 
                                                                   
                                                                 
                                                                
                                                                    
                                                                   
                                                                  
 -----Original 
Message-----
                                                                      
From: "Teo En Ming" < enming.teo@xxxxxxxxxxxxxxx >
                                                                      
To: "Pasi Kärkkäinen" <pasik@xxxxxx>
                                                                      
Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>, 
xen-devel@xxxxxxxxxxxxxxxxxxx
                                                                      
Date: Fri, 24 Jul 2009 21:54:00 +0800
                                                                      
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's 
PVOPS Kernel 
                                                                   
                                                                  
                                                                  
                                                                  
                                                                    I realized that Fedora 10 32-bit anaconda 
installer does not install PAE kernel after mounting the guest disk image 
file. I mounted the guest disk image file using losetup and kpartx which 
adds device nodes to /dev/mapper. I examined the /boot directory after 
mounting the guest disk image file and found no PAE vmlinuz and initrd. 
                                                                     
                                                                   
                                                                  
                                                                  
                                                                    Still using the mounted Fedora 10 32-bit guest 
disk image file, I changed root to the guest disk filesystems and attempted 
to install the PAE kernel. Then I modified menu.lst to boot the PAE kernel. 
After modifying the grub configuration of the guest domain, I un-mounted the 
guest filesystem. 
                                                                     
                                                                   
                                                                  
                                                                  
                                                                    I proceeded to boot the F10 32-bit guest, since 
I changed to PAE kernel. It is able to boot now (since the PAE kernel is 
xen-aware) but then it complains cannot mount /dev/root. Probably something 
to do with the PAE initrd file. 
                                                                     
                                                                   
                                                                  
                                                                  
                                                                    Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics 
Engineering) BEng(Hons)(Mechanical Engineering) 
                                                                     
                                                                   
                                                                  
                                                                    Technical Support Engineer  
                                                                     
                                                                   
                                                                  
                                                                    Information Technology Department
                                                                        
Asiasoft Online Pte Ltd
                                                                        
Tampines Central 1 #04-01 Tampines Plaza
                                                                        
Singapore 529541 
                                                                     
                                                                   
                                                                  
                                                                     
Republic  of Singapore
                                                                        
Mobile Phone: +65-9648-9798
                                                                        
MSN: teoenming@xxxxxxxxxxx 
                                                                     
                                                                   
                                                                  
                                                                      
                                                                     
                                                                    
 -----Original 
Message-----
                                                                        
From: Pasi Kärkkäinen <pasik@xxxxxx>
                                                                        
To: Teo En Ming < enming.teo@xxxxxxxxxxxxxxx >
                                                                        
Cc: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>, 
xen-devel@xxxxxxxxxxxxxxxxxxx
                                                                        
Date: Fri, 24 Jul 2009 16:31:19 +0300
                                                                        
Subject: Re: Re[8]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's 
PVOPS Kernel 
                                                                     
                                                                    
                                                                      On Fri, Jul 24, 2009 at 08:37:09PM +0800, Teo En Ming wrote:
                                                                          > Hi
                                                                          >
                                                                          > I attempted to install Fedora 10 32-bit PV guest using
                                                                          > images/pxeboot/vmlinuz-PAE and images/pxeboot/initrd-PAE.img from 
the F10
                                                                          > media. The non-PAE kernel could not load the installer. I finished 
my Fedora
                                                                          > 10 32-bit PV guest installation but it also cannot boot up after
                                                                          > installation, same as the CentOS 4.7 PV guest installation.
                                                                          >
                                                                         
                                                                          Fedora 10 installer has a bug, as a default it installs non-PAE kernel 
for
                                                                          xen domU. You need to use a kickstart script (like this) to fix it:
                                                                           
http://pasik.reaktio.net/fedora/f10-xen-domu-ks.cfg
                                                                         
                                                                          The important lines being:
                                                                         
                                                                          -kernel
                                                                          kernel-PAE
                                                                         
                                                                          (Fedora 10 and Fedora 11 default kernels are compiled with pv_ops Xen 
domU
                                                                          support enabled, so there's no need for separate kernel-xen with these 
distros).
                                                                         
                                                                          Fedora 11 doesn't have that installer bug, so it installs right
                                                                          out-of-the-box as Xen domU.
                                                                         
                                                                          What's the error you get when you start the guest after installation?
                                                                          Please paste the "xm log" as text.
                                                                         
                                                                          I don't have any problems with CentOS 5.3 dom0.
                                                                         
                                                                          -- Pasi 
                                                                       
                                                                     
                                                                  
 
                                                                 
                                                               
                                                             
                                                            
                                                                
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