Re: error creating Centos 5.1 x32 dum_U instance on CentOS 5.1 x64

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Rudi Ahlers wrote:
carlopmart wrote:
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@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


That's incorrent. I have three Rhel5.1 x86_64 xenhosts with different 32 bits domU, centos 5.1, centos 5.0 and rhel5.1 included ...

I think that problem is selinux. In redhat docs explains that domU needs to reside on /var/lib/xen if you use selinux. You can try to disable selinux (/etc/sysconfig/selinux) and all works ok.

I have got selinux disabled.

Are you sure?? Then, why on your /var/log/messages selinux errors appears??

--
CL Martinez
carlopmart {at} gmail {d0t} com
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