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Re: Re[2]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel



Hi Sander
 
I added boot to kernel and initrd in the grub config of the centos 4.7 pv guest but it still doesn't work.
 
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: "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, jeremy.fitzhardinge@xxxxxxxxxx
Date: Fri, 24 Jul 2009 00:44:58 +0800
Subject: Re: Re[2]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel

Hi Sander,
 
The grub config in the centos 4.7 pv guest was automatically added by centos installer.
 
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: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
To: "Teo En Ming" <enming.teo@xxxxxxxxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, jeremy.fitzhardinge@xxxxxxxxxx
Date: Thu, 23 Jul 2009 18:40:48 +0200
Subject: Re[2]: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS Kernel

Hello Teo,

Are you sure the path in your grub menu is correct ?
Shouldn't you add /boot infront of vmlinuz and initrd ?

Regards,

Sander

Thursday, July 23, 2009, 6:13:02 PM, you wrote:

> Hi!!!

> I have managed to install CentOS 4.7 paravirtualized guest on Xen Dom 0
> Jeremy Fitzhardinge's pv_ops kernel successfully. Please see screenshots
> here:
> http://teo-en-ming-aka-zhang-enming.blogspot.com/2009/07/creating-centos-47-32-bit.html

> However, after installation of CentOS 4.7 PV, I can't start the guest
> domain.

> I have tried to mount/access the CentOS 4.7 guest disk image file and found
> out that xenU (xen-aware) kernel and initial ramdisk images were installed.
> PV Guest GRUB was also configured to boot the xenU kernel. Please see
> screenshot:
> http://1.bp.blogspot.com/_zzjv8MCM2sk/SmiMcYsFzAI/AAAAAAAAACk/rYxOFDHuD00/s1600-h/xen18.jpeg

> My CentOS 4.7 PV guest domain configuration is as follows:  
> http://3.bp.blogspot.com/_zzjv8MCM2sk/SmiMcrnOfEI/AAAAAAAAACs/s-xguFnf25U/s1600-h/xen19.jpeg

> Any idea why I can't start the CentOS 4.7 PV guest after installation? Is
> the guest domain configuration correct/sufficient? Please advise.

> 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


> -----Original Message-----

> From: "Teo En Ming" <enming.teo@xxxxxxxxxxxxxxx>

> To: "Pasi Kärkkäinen" <pasik@xxxxxx>

> Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, jeremy.fitzhardinge@xxxxxxxxxx

> Date: Thu, 23 Jul 2009 19:52:23 +0800

> Subject: Re: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's PVOPS
> Kernel




> Dear Pasi,



> Thank you!!!



> I am now creating a virtual harddisk for my Xen virtual machine.
> Creating a 146 GB virtual harddisk:



> # dd if=/dev/zero of=/home/enming/ga-nfs.img bs=1M count=149504



> I am going to run CentOS 4.7 32-bit linux on it!

> 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: xen-devel@xxxxxxxxxxxxxxxxxxx, jeremy.fitzhardinge@xxxxxxxxxx
>  
>  Date: Thu, 23 Jul 2009 13:41:28 +0300
>  
>  Subject: Re: [Xen-devel] Unable to Configure Xen Dom 0 in Jeremy's
> PVOPS Kernel
>  

>  

>  
> On Thu, Jul 23,
> 2009 at 06:25:33PM +0800, Teo En Ming wrote:
>    
 >> Dear Pasi,
>    
 >>
>    
 >> I ran "mount /proc/xen" manually *after* the system booted
> up, it read
>    
 >> /etc/fstab, and mounted /proc/xen successfully!!!
>    
 >>
>    
 >> Please see the last line of the following "mount" output:
>    
 >>
>    
 >> /dev/sda2 on / type ext3 (rw,acl,user_xattr)
>    
 >> /proc on /proc type proc (rw)
>    
 >> sysfs on /sys type sysfs (rw)
>    
 >> debugfs on /sys/kernel/debug type debugfs (rw)
>    
 >> udev on /dev type tmpfs (rw)
>    
 >> devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
>    
 >> /dev/sda3 on /home type ext3 (rw,acl,user_xattr)
>    
 >> fusectl on /sys/fs/fuse/connections type fusectl (rw)
>    
 >> none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
>    
 >> gvfs-fuse-daemon on /home/enming/.gvfs type
> fuse.gvfs-fuse-daemon
>    
 >> (rw,nosuid,nodev,user=enming)
>    
 >> none on /proc/xen type xenfs (rw)
>    
 >>
>    

>    
>  Yep, now it's mounted :)
>    

>    
 >> It is very strange that the system did not mount /proc/xen
> automatically as
>    
 >> indicated in /etc/fstab during bootup.
>    
 >>
>    

>    
>  Indeed.
>    

>    
 >> Now I am able to start xend daemon. Please see
>    
 >>
> http://2.bp.blogspot.com/_zzjv8MCM2sk/Smg7pKoH_JI/AAAAAAAAABU/TVkqEEyLzYQ/s1600-h/xen08.jpeg
> [ http://2.bp.blogspot.com/_zzjv8MCM2sk/Smg7pKoH_JI/AAAAAAAAABU/TVkqEEyLzYQ/s1600-h/xen08.jpeg ]

>    
 >>
>    
 >> And I can see domain 0 using the "xm list" command already!
>    
 >>
>    

>    
>  Congrats! :)
>    

>    
 >> Any ideas how to make /proc/xen automatically mounted while
> booting? I
>    
 >> thought I already have the xenfs entry in /etc/fstab.
>    
 >>
>    
 >> /dev/disk/by-id/ata-ST3320620AS_9QF97Q42-part1 swap  
>               swap    
>    
 >>   defaults            
>  0 0
>    
 >> /dev/disk/by-id/ata-ST3320620AS_9QF97Q42-part2 /  
>                  ext3  
>  
>    
 >>   acl,user_xattr        1 1
>    
 >> /dev/disk/by-id/ata-ST3320620AS_9QF97Q42-part3 /home  
>              ext3    
>    
 >>   acl,user_xattr        1 2
>    
 >> proc                
> /proc                proc  
>     defaults              0
>    
 >> 0
>    
 >> sysfs              
>  /sys                 sysfs
>      noauto              
>  0
>    
 >> 0
>    
 >> debugfs            
>  /sys/kernel/debug    debugfs    noauto  
>              0
>    
 >> 0
>    
 >> devpts              
> /dev/pts             devpts    
> mode=0620,gid=5       0
>    
 >> 0
>    
 >> none                
> /proc/xen            xenfs    
>  defaults              0
>    
 >> 0
>    
 >>
>    
 >> Seems the initscripts did not attempt to mount /proc/xen
> during system
>    
 >> startup.
>    
 >>
>    

>    
>  That's weird.. it should be mounted automatically when it's in
> fstab.
>    
>  Maybe it's because sysfs /sys is 'noauto'? Try to change that to
> 'defaults'.
>    

>    
 >> Or should I put "mount /proc/xen" in /etc/rc.local?
>    
 >>
>    

>    
>  That shouldn't be necessary.
>    

>    
>  -- Pasi
>    

>    
>  _______________________________________________
>    
>  Xen-devel mailing list
>    
>  Xen-devel@xxxxxxxxxxxxxxxxxxx
>    
>  http://lists.xensource.com/xen-devel
> [http://lists.xensource.com/xen-devel]



--
Best regards,
 Sander                            mailto:linux@xxxxxxxxxxxxxx


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