Re: [Xen-users] working with latest -xen kernel?

[Fasiha Ashraf <feehapk@xxxxxxxxxxx>]

Hi,
Boris! i have installed and run virt-manager successfully. After i boot into my xen paravirt kernel I got,
[root@Server1-FC11 init.d]# xm info
host                   : Server1-FC11
release                : 2.6.30-rc6-tip
version                : #1 SMP Thu Oct 22 12:48:59 PKST 2009
machine                : x86_64
nr_cpus                : 8
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 1995
hw_caps                : bfebfbff:20100800:00000000:00000140:000ce33d:00000000:00000001:00000000
virt_caps              : hvm
total_memory           : 8186
free_memory            : 131
node_to_cpu            : node0:0-7
node_to_memory         : node0:131
xen_major              : 3
xen_minor              : 4
xen_extra              : .1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.4.1 20090725 (Red Hat 4.4.1-2) (GCC)
cc_compile_by          : root
cc_compile_domain      : (none)
cc_compile_date        : Wed Oct 21 16:54:50 PKST 2009
xend_config_format     : 4
[root@Server1-FC11 init.d]# xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  7948     8     r-----  11313.5
[root@Server1-FC11 init.d]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1E:4F:3A:72:B1 
          inet addr:10.11.21.31  Bcast:10.11.21.255  Mask:255.255.254.0
          inet6 addr: fe80::21e:4fff:fe3a:72b1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:772889 errors:0 dropped:0 overruns:0 frame:0
          TX packets:384416 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1109703046 (1.0 GiB)  TX bytes:38290313 (36.5 MiB)

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:54105050 errors:0 dropped:0 overruns:0 frame:0
          TX packets:54105050 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:651622265675 (606.8 GiB)  TX bytes:651622265675 (606.8 GiB)

peth0     Link encap:Ethernet  HWaddr 00:1E:4F:3A:72:B1 
          inet6 addr: fe80::21e:4fff:fe3a:72b1/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:773940 errors:0 dropped:0 overruns:0 frame:0
          TX packets:387413 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1123688923 (1.0 GiB)  TX bytes:40033135 (38.1 MiB)
          Interrupt:16 Memory:d6000000-d6012700

virbr0    Link encap:Ethernet  HWaddr FE:92:5A:81:A9:CD 
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:3463 (3.3 KiB)
[root@Server1-FC11 init.d]# brctl show
bridge name    bridge id        STP enabled    interfaces
eth0        8000.001e4f3a72b1    yes        peth0
pan0        8000.000000000000    no       
Now I want to install paravirt xen guests. PFA, different screen shots of virt-manager while creating a VM. But the paravirt option is disabled and i am unable to select  it. Why is that so?

Regards,
Fasiha Ashraf

--- On Fri, 16/10/09, Boris Derzhavets <bderzhavets@xxxxxxxxx> wrote:

From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
Subject: Re: [Xen-users] working with latest -xen kernel?
To: "Fajar A. Nugraha" <fajar@xxxxxxxxx>, "Fasiha Ashraf" <feehapk@xxxxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Date: Friday, 16 October, 2009, 11:24 PM

Did you also read his update on that post, linking to
http://bderzhavets.wordpress.com/2009/08/20/setup-libvirt-0-7-0-6-xen-3-4-1-dom0-on-to-fedora-11-64-bit/
?
> Yes I did, but i have a question about it as well, Since i have compiled xen with this kernel >version, Do i need to install it from rpm as well?

YES

# cd xen-3.4.1
# make uninstall
# rpm -iv xen-3.4.1-4.src.rpm
# cd rpmbuild/SPEC
# rpmbuild -ba ./xen.spec
. . . . . . . .

> or just i should skip that step and start installing libvirt?

NO

When xen 3.4.1 and tools  are installed via generated rpms proceed with libvirt install
as suggested.

>  Also tell me should it be done from my dom0 or from the base kernel(nonexen)?
From base kernel environment.

Then install pvops ( or xenified kernel) , create grub entry and reboot.
Currently , 2.6.31.4 (pvops) is running in Dom0 on top of F11 in my environment.
Random xend crashes take place, service xend start to recover.

Boris.

--- On Fri, 10/16/09, Fasiha Ashraf <feehapk@xxxxxxxxxxx> wrote:

From: Fasiha Ashraf <feehapk@xxxxxxxxxxx>
Subject: Re: [Xen-users] working with latest -xen kernel?
To: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Date: Friday, October 16, 2009, 3:33 AM

On Fri, Oct 16, 2009 at 11:54 AM, Fasiha Ashraf <feehapk@xxxxxxxxxxx> wrote:
>
> Hi,
> I have noticed that you have build xen-3-4-1-dom0-kernel-2-6-30-rc6-tip-on-top-of-fedora-11. Please help in creating VMs it this case. my virt-manager and virt-install are not working. and I am following this link to create xen DomUs http://bderzhavets.wordpress.com/2009/06/10/setup-fedora-11-pv-domu-at-xen-3-4-1-dom0-kernel-2-6-30-rc6-tip-on-top-of-fedora-11/#comment-618

Did you also read his update on that post, linking to
http://bderzhavets.wordpress.com/2009/08/20/setup-libvirt-0-7-0-6-xen-3-4-1-dom0-on-to-fedora-11-64-bit/
?
Yes I did, but i have a question about it as well, Since i have compiled xen with this kernel version, Do i need to install it from rpm as well? or just i should skip that step and start installing libvirt?Also tell me should it be done from my dom0 or from the base kernel(nonexen)?

>
> this error while running #vncviewer localhost:0
>
> Copyright (C) 2002-2005 RealVNC Ltd.
> Copyright (C) 2000-2006 TightVNC Group
> Copyright (C) 2004-2009 Peter Astrand for Cendio AB
> See http://www.tigervnc.org for information on TigerVNC.
> vncviewer: unable to open display ââ

I'd start with running "xm list" and see if your domU is actually
running or not. After that, do something like
I am getting dom0 with running status
[root@Server1-FC11 xendoms]# xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  7077     8     r-----     64.9
F11-G1S1                                     1   500     1     -b----      1.1
F11-G2S1                                     2   500     1     -b----      1.1

netstat -anp | egrep "(:59)(.+)(LISTEN)"
[root@Server1-FC11 xendoms]# netstat -anp | egrep "(:59)(.+)(LISTEN)"
tcp        0      0 127.0.0.1:5900              0.0.0.0:*                   LISTEN      2490/qemu-dm       
tcp        0      0 127.0.0.1:5901              0.0.0.0:*                   LISTEN      2623/qemu-dm       

to see if there's any process listening on port 5900+. If a domU was
started and it has a vnc GUI, there should be some qemu-dm process
shown there.

>
> Also i have some confusion about disk specs what i use are:
> disk = [ 'phy:/dev/loop0,xvda,w' ]
> Cause i am not using lvm. Here is my

Where does loop0 come from? If you're using disk/partition as domU
storage you can simply specify the block device (e.g. /dev/sdb,
/dev/sda4, etc.). If you're using file you can directly use tap:aio.
[root@Server1-FC11 xendoms]# fdisk -l
Disk /dev/sda: 438.4 GB, 438489317376 bytes
255 heads, 63 sectors/track, 53309 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000080

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1          13      104391   83  Linux
/dev/sda2              14        2180    17406427+  82  Linux swap / Solaris
/dev/sda3            2181       42776   326087370   83  Linux
/dev/sda4           42777       53309    84606322+   5  Extended
/dev/sda5   *       42777       53309    84606291   83  Linux

>
> my disk specs are right or not? Any suggestions??

I'm guessing you specified the wrong disk and domU didn't start at all.
I am not using LVM partitions. when i specified one dom disk as /dev/sda i have nothing for next dom. In such situation is it good to use file? like u suggest.
--
Fajar

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