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[Fedora-xen] Re: [fedora-virt] virt-install (and virt-manager) unsupported virtualization type 'xen' with pv_ops dom0 on Fedora 10



On Sat, Mar 07, 2009 at 12:33:46PM -0500, Cole Robinson wrote:
> Pasi Kärkkäinen wrote:
> > Hello!
> > 
> > I'm using Fedora 10 on my Xen pv_ops testing box.
> > 
> > I rebuilt Xen 3.3.1-9 packages from F11/rawhide for Fedora 10 and installed them.
> > 
> > http://kojipkgs.fedoraproject.org/packages/xen/3.3.1/9.fc11/src/xen-3.3.1-9.fc11.src.rpm
> > 
> > xen-3.3.1-9.fc10.i386.rpm
> > xen-debuginfo-3.3.1-9.fc10.i386.rpm
> > xen-devel-3.3.1-9.fc10.i386.rpm
> > xen-hypervisor-3.3.1-9.fc10.i386.rpm
> > xen-libs-3.3.1-9.fc10.i386.rpm
> > xen-runtime-3.3.1-9.fc10.i386.rpm
> > 
> > I also built custom 2.6.29-rc7 pv_ops dom0 kernel, which seems to boot OK
> > for me.
> > 
> > xend starts OK, and I can run 'xm info', 'xm list' etc.
> > 
> > But now I'm having problems using virt-install and/or virt-manager to
> > install new domains.
> > 
> > [root dom0test ~]# virt-install -n vm01 -r 512 --vcpus=1 -f /dev/vg00/vm01 --vnc -p -l
> > "ftp://ftp.funet.fi/pub/mirrors/fedora.redhat.com/pub/fedora/linux/releases/10/Fedora/i386/os";
> > 
> > ERROR    Unsupported virtualization type 'xen' 
> > 
> > Has Xen support been dropped from virt-install, or is this just some bug? 
> > 
> 
> Xen support hasn't been dropped, we are probably just failing to detect
> that xen is available.
> 
> First, can you try 'virsh --connect xen:///' and see if it succeeds? If
> that works, you can manually pass the connection string to virt-install
> in the interim (virt-install --connect xen:/// ...)
> 

Yeah, that seems to work:

[root dom0test ~]# virsh --connect xen:///
Welcome to virsh, the virtualization interactive terminal.

Type:  'help' for help with commands
       'quit' to quit

virsh # vcpuinfo 0
VCPU:           0
CPU:            0
State:          running
CPU time:       32.3s
CPU Affinity:   yy

VCPU:           1
CPU:            1
State:          idle
CPU time:       18.9s
CPU Affinity:   yy

virsh # version
Compiled against library: libvir 0.5.1
Using library: libvir 0.5.1
Using API: Xen 3.0.1
Running hypervisor: Xen 3.3.0

virsh # quit

[root dom0test ~]# xm info
host                   : dom0test.localdomain
release                : 2.6.29-rc7-tip
version                : #10 SMP Sat Mar 7 16:04:28 EET 2009
machine                : i686
nr_cpus                : 2
nr_nodes               : 1
cores_per_socket       : 1
threads_per_core       : 2
cpu_mhz                : 3000
hw_caps                :
bfebfbff:00000000:00000000:00000180:0000441d:00000000:00000000:00000000
virt_caps              : 
total_memory           : 2038
free_memory            : 992
node_to_cpu            : node0:0-1
node_to_memory         : node0:992
xen_major              : 3
xen_minor              : 3
xen_extra              : .1-9.fc10
xen_caps               : xen-3.0-x86_32p 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC) 
cc_compile_by          : root
cc_compile_domain      : localdomain
cc_compile_date        : Fri Mar  6 17:24:19 EET 2009
xend_config_format     : 4


> Can you also check if the following 3 locations exist:
> 
> /var/lib/xend
> /dev/xen/evtchn
> /proc/xen
> 

Yep, all of those do exist.

[root dom0test ~]# ls /var/lib/xend
domains  relocation-socket  state  storage  xend-socket

[root dom0test ~]# ls -la /dev/xen/evtchn 
crw-rw---- 1 root root 10, 63 2009-03-07 20:10 /dev/xen/evtchn

[root dom0test ~]# ls /proc/xen/
capabilities  privcmd  xenbus  xsd_kva  xsd_port


> That is what we check in virtinst to guess that xen is present, and we
> should use its connection by default. If one of those is missing, any
> recommendations on how to detect xen presence would be appreciated.
> 

[root dom0test ~]# virt-install --connect xen:/// -n vm01 -r 512 --vcpus=1 -f /dev/vg00/vm01 --vnc -p -l
"ftp://ftp.funet.fi/pub/mirrors/fedora.redhat.com/pub/fedora/linux/releases/10/Fedora/i386/os";

ERROR    Unsupported virtualization type 'xen'

Hmm.. so that didn't help unfortunately.. Other ideas? 

And thanks!

-- Pasi


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