[libvirt-users] Error installing VM: "Process exited while reading console log output"

[Osier Yang]

On 2012年12月20日 14:29, Patrick 'P. J.' McDermott wrote:
> Hi,
>
> I'm trying to install a qemu-kvm virtual machine on a Debian GNU/Linux
> squeeze amd64 host, using virtinst 0.500.3 and libvirt 0.8.3.
>
> First I tried this command as a normal user (in groups kvm and libvirt):
>
>      $ virt-install --connect qemu:///system --name test1 \
>      >  --ram $((128 * 1024 * 1024)) --vcpus=1 --description 'Test VM 1' \
>      >  --location=http://http.us.debian.org/debian/dists/squeeze/main/installer-amd64/ \
>      >  --extra-args='auto url=http://10.0.0.128/baldr1.cfg' \
>      >  --os-type=linux --os-variant=debiansqueeze \
>      >  --disk path=/mnt/data/vms/test1.img --network bridge=br0 \
>      >  --nographics --hvm --virt-type=kvm --serial pty --autostart
>
> This failed, giving me the following output:
>
>      Starting install...
>      Retrieving file MANIFEST...                  | 3.3 kB     00:00 ...
>      Retrieving file linux...                     | 4.6 MB     00:13 ...
>      Retrieving file initrd.gz...                 |  13 MB     00:38 ...
>      ERROR    internal error Process exited while reading console log output: char device redirected to /dev/pts/4
>
>      Domain installation does not appear to have been
>       successful.  If it was, you can restart your domain
>       by running 'virsh start test1'; otherwise, please
>       restart your installation.
>      ERROR    internal error Process exited while reading console log output: char device redirected to /dev/pts/4
>      Traceback (most recent call last):
>        File "/usr/bin/virt-install", line 1033, in<module>
>          main()
>        File "/usr/bin/virt-install", line 915, in main
>          start_time, guest.start_install)
>        File "/usr/bin/virt-install", line 957, in do_install
>          dom = install_func(conscb, progresscb, wait=(not wait))
>        File "/usr/lib/pymodules/python2.6/virtinst/Guest.py", line 973, in start_install
>          return self._do_install(consolecb, meter, removeOld, wait)
>        File "/usr/lib/pymodules/python2.6/virtinst/Guest.py", line 1038, in _do_install
>          "install")
>        File "/usr/lib/pymodules/python2.6/virtinst/Guest.py", line 1009, in _create_guest
>          dom = self.conn.createLinux(start_xml, 0)
>        File "/usr/lib/python2.6/dist-packages/libvirt.py", line 1277, in createLinux
>          if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self)
>      libvirtError: internal error Process exited while reading console log output: char device redirected to /dev/pts/4

Generally, this means qemu crashed, can you check the guest log
to see if there is any useful info?

/var/log/libvirt/qemu/$guest.log

PS: perhaps we should grab the stderr of qemu process and dump it
to user instead.

>
> I tried the same virt-install command without "--serial pty" and as
> root, to no avail.
>
> I then tried setting "console" using --extra-args, i.e.:
>
>      $ virt-install --connect qemu:///system --name test1 \
>      >  --ram $((128 * 1024 * 1024)) --vcpus=1 --description 'Test VM 1' \
>      >  --location=http://http.us.debian.org/debian/dists/squeeze/main/installer-amd64/ \
>      >  --extra-args='console=tty0 console=ttyS0,115200n8' \
>      >  --os-type=linux --os-variant=debiansqueeze \
>      >  --disk path=/mnt/data/vms/test1.img --network bridge=br0 \
>      >  --nographics --hvm --virt-type=kvm --serial pty --autostart
>
> Again, I get the same error.
>
> Can anyone tell me why I'm getting this error or give me some hints to
> troubleshoot this?  So far nothing in the Python or C code of libvirt
> stands out at me, and nothing in ~/.virtinst/virt-install.log looks
> helpful.
>
> Since there's no specific error message to say why the process exited,
> does this perhaps mean that debian-installer is simply shutting down
> immediately after booting?
>
> (I'm sending this to the libvirt-users list because it looks like a
> libvirt issue.  Let me know if I should query a different list.)
>
> Thanks,