[CentOS] error creating Centos 5.1 x32 dum_U instance on CentOS 5.1 x64

[Rudi Ahlers]

Tom Brown wrote:
> Rudi Ahlers wrote:
>> Hi all
>>
>> This is the first time I try and get Xen working, and want to install 
>> a few CentOS 5.1 32bit and FreeBSD 6.1 VM's on my CentOS 5.1 x64 server.
>>
>> Trying to get the first one to install is rather trivial, and I keep 
>> on running into errors. At fist I wanted to install it fro the cdrom, 
>> so I used "virt-install --cdrom=/dev/hdc" It booted up, and I could 
>> choose my language, but then got an error saying I don't have the 
>> right driver for the cdrom install. Odd.
>>
>> So, I copied the whole CD to my intranet server, to try a HTTP 
>> installation, which got much further, but fails as soon as it starts 
>> copying the files to the xvda partition.
>>
>> Here's what I've done:
>> virt-install -p 
>> --location=http://intranet/kickstart/centos/5.1/32/os/i386 --ram=512 
>> --file=/vm/vm03.img --name=vm03
>>
>> Probing for video card:   Unable to probe
>> No video hardware found, assuming headless
>> Graphical installation not available...  Starting text mode.
>> Welcome to CentOS
>>
>>         +------------------+ Package Installation +------------------+
>>         |                                                            |
>>         |  Name   : libXt-1.0.2-3.1.fc6-i386                         |
>>         |  Size   : 359k                                             |
>>         |  Summary: X.Org X11 libXt runtime library                  |
>>         |                                                            |
>>         |                                                            |
>>         |  Status:                                                   |
>>         |                                                            |
>>         |                            53%                             |
>>         |                                                            |
>>         |                          Packages      Bytes        Time   |
>>         |   Total    :                  349       564M     0:02:30   |
>>         |   Completed:                  123       200M     0:00:53   |
>>         |   Remaining:                  226       364M     0:01:37   |
>>         |                                                            |
>>         |                            35%                           
>> Guest installation complete... restarting guest.
>> libvir: Xen Daemon error : POST operation failed: (xend.err "Error 
>> creating domain: Boot loader didn't return any data!")
>> exception was: virDomainCreate() failed POST operation failed: 
>> (xend.err "Error creating domain: Boot loader didn't return any data!")
>> Domain installation may not have been
>> successful.  If it was, you can restart your domain
>> by running 'virsh start vm03'; otherwise, pleasels   |   <F12> next 
>> screen
>> restart your installation.
>> [root at gimbli ~]# virsh start vm03
>> libvir: Xen Daemon error : POST operation failed: (xend.err "Error 
>> creating domain: Boot loader didn't return any data!")
>> error: Failed to start domain vm03
>>
>>
>>
>> /var/log/messages got filled with the following messages:
>>
>> stem_r:xenstored_t:s0 tcontext=system_u:system_r:xenstored_t:s0 
>> tclass=capability
>> Feb 29 10:36:59 gimbli kernel: audit(1204274218.949:2139): avc:  
>> denied  { sys_resource } for  pid=2445 comm="xenstored" capability=24 
>> scontext=system_u:system_r:xenstored_t:s0 
>> tcontext=system_u:system_r:xenstored_t:s0 tclass=capability
>> Feb 29 10:36:59 gimbli kernel: audit(1204274218.949:2140): avc:  
>> denied  { sys_resource } for  pid=2445 comm="xenstored" capability=24 
>> scontext=system_u:system_r:xenstored_t:s0 
>> tcontext=system_u:system_r:xenstored_t:s0 tclass=capability
>> Feb 29 10:36:59 gimbli kernel: audit(1204274218.949:2141): avc:  
>> denied  { sys_resource } for  pid=2445 comm="xenstored" capability=24 
>> scontext=system_u:system_r:xenstored_t:s0 
>> tcontext=system_u:system_r:xenstored_t:s0 tclass=capability
>> Feb 29 10:36:59 gimbli kernel: audit(1204274218.949:2142): avc:  
>> denied  { sys_resource } for  pid=2445 comm="xenstored" capability=24 
>> scontext=system_u:system_r:xenstored_t:s0 
>> tcontext=system_u:system_r:xenstored_t:s0 tclass=capability
>>
>>
>>
>> What am I doing wrong?
>>
>
> as far as i am aware on standard RHEL or CentOS 5 packages a 32bit 
> domU on a 64bit dom0 is not supported and known to crash
>
>
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>
Are you sure? I've read on a few different sites / emails that people do 
this, mainly because the 64bit version can handle the large amounts of 
memory typically found in dedicated servers.

-- 

Kind Regards
Rudi Ahlers
CEO, SoftDux

Web:   http://www.SoftDux.com
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