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Re: [Xen-users] Booting Linux OS as a guest domain on RHEL5 on full virtualized machine.

  • To: "Henning Sprang" <henning_sprang@xxxxxx>
  • From: "trilok nuwal" <tc.nuwal@xxxxxxxxx>
  • Date: Thu, 1 Feb 2007 18:55:08 +0530
  • Cc: Xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 01 Feb 2007 05:25:11 -0800
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

As per uyour suggestion i modified my config file for guest domain

  [root@ca-ostest209 home]# cat /etc/xen/dom.vti
   import os, re
   arch = os.uname()[4]
   if re.search('64', arch):
       arch_libdir = 'lib64'
       arch_libdir = 'lib'
   kernel = "/usr/lib/xen/boot/hvmloader"
   disk = [ 'file:/home/hd.img,ioemu:sda,w' ]
   vif = [ 'mac=00:50:56:39:85:78 , bridge=xenbr0' ]
   device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'
   memory = 1000
   name = "domU"

Create the guest domain  : on console i got this one*

   [root@ca-ostest209 /]# xm create -c /etc/xen/dom.vti
   Using config file "/etc/xen/dom.vti".
   Started domain domU

   [root@ca-ostest209 home]# xm list
   Name                                      ID   Mem VCPUs        State   Time(s)
   Domain-0                                 0  3004     8     r-----     392043.7
   domU                                       5  1008     1     r-----    16320.8

     This looks like domU is running on the machine.

  I am not getting any error in xend.log

 logs in qemu-dm.21952.log

   domid: 6
   qemu: the number of cpus is 1
   qemu_map_cache_init nr_buckets = 3e8
   shared page at pfn:3e7ff
   buffered io page at pfn:3e7fd
   char device redirected to /dev/pts/1
   I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0

 when i open #vncclient on my machine and try to connect the domU.

   Then on VNC client screen i found

   Boot from hard disk 0 failed
   FATAL: Could not read the boot disk

Can i know what wrong in the creation of image file or in config file ?

On 1/30/07, Henning Sprang <henning_sprang@xxxxxx> wrote:
On 1/30/07, trilok nuwal <tc.nuwal@xxxxxxxxx> wrote:
> Firstly i am creating a guest os image by the below method

First: you didn't answer the question if you read all available docs,
and it seems like you did not. That's sad, because it's required that
everybody invests some time of it's own before using other's time to
get help.
Come back after you read the docs, and please don't paste web contents
here - if you want to tell us which howto you used, a link is enough.
And dont use html mail.

As for yout problem:

Try vnc=1 (it should be obvious even without knowing xen that vnc is
surely not enabled by setting vnc=0 as you do).
Then try connectin to the vnc server with vncviewer.
-c doesn't work with hvm domains which you want to access via vnc.
and, add usb=1 and usbdevice="tablet" to your config - otherwise you
mouse pointer is messed up in vnc.


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