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Re: [Xen-users] Fresh ubuntu/11.10 install with xen/4.1; virsh doesn't run

  • To: Boris Derzhavets <bderzhavets@xxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Richard Broberg <rhbroberg@xxxxxxxxx>
  • Date: Fri, 21 Oct 2011 09:15:54 -0700 (PDT)
  • Cc:
  • Delivery-date: Fri, 21 Oct 2011 09:17:41 -0700
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That may indeed be the case, but I need more details in a response to fix the problem - as in - what to do to fix it.  The end result is that I have a xen-enabled kernel with xen installed, but cannot run any (useful) xen commands (virt-install fails, as noted).

I could not find any obvious document explaining "follow these guidelines for setting up xen on ubuntu/11.10" - but I'd be happy to be pointed to one.

I am very excited that xen is in the mainstream kernel - and I would like to see better adoption of xen as well.  Having it work out-of-the-box will help that cause.

From what I can tell, there seems to be some installation issues with respect to pathnames - keymap directories and qemu binaries and the like.

From: Boris Derzhavets <bderzhavets@xxxxxxxxx>
To: xen-users@xxxxxxxxxxxxxxxxxxx; Richard Broberg <rhbroberg@xxxxxxxxx>
Sent: Friday, October 21, 2011 1:35 AM
Subject: Re: [Xen-users] Fresh ubuntu/11.10 install with xen/4.1; virsh doesn't run

virsh&libvirt environment is not set for Xen.


--- On Thu, 10/20/11, Richard Broberg <rhbroberg@xxxxxxxxx> wrote:

From: Richard Broberg <rhbroberg@xxxxxxxxx>
Subject: [Xen-users] Fresh ubuntu/11.10 install with xen/4.1; virsh doesn't run
To: xen-users@xxxxxxxxxxxxxxxxxxx
Date: Thursday, October 20, 2011, 10:31 PM

I'm using a fresh ubuntu/11.10 install (I've tried this on both x86 and x86_64 - same behavior on each).
After installation and applying outstanding o/s updates, I issue:

apt-get install -y xen-hypervisor-4.1-i386

I reboot, choose the xen choice from the grub menu at bootup.

root@ubuntu-server:~# virsh version
error: failed to get the hypervisor version
error: internal error Cannot find suitable emulator for i686
Compiled against library: libvir 0.9.2
Using library: libvir 0.9.2
Using API: QEMU 0.9.2

I can see services running:

root@ubuntu-server:~# pgrep xen -l
20 xenwatch
21 xenbus
946 xenstored
951 xenconsoled
1094 xend
1095 xend

root@ubuntu-server:~# xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  7153     4     r-----    115.6

root@ubuntu-server:~# xl info
host                   : ubuntu-server
release                : 3.0.0-12-generic-pae
version                : #20-Ubuntu SMP Fri Oct 7 16:37:17 UTC 2011
machine                : i686
nr_cpus                : 4
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 1
cpu_mhz                : 2400
hw_caps                : bfebfbff:20100000:00000000:00000940:0000e3bd:00000000:00000001:00000000
virt_caps              : hvm
total_memory           : 8157
free_memory            : 1730
free_cpus              : 0
xen_major              : 4
xen_minor              : 1
xen_extra              : .1
xen_caps               : xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xf5800000
xen_changeset          : unavailable
xen_commandline        : placeholder
cc_compiler            : gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
cc_compile_by          : doko
cc_compile_domain      : ubuntu.com
cc_compile_date        : Thu Oct  6 13:29:48 UTC 2011
xend_config_format     : 4

Also - running 'virt-install' fails as well:

virt-install --hvm --name demo --ram 1024 --nodisks --livecd --graphics vnc --cdrom /mnt/iso-images/linux/ubuntu-11.10-desktop-i386.iso
ERROR    unable to connect to 'localhost:8000': Connection refused

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