Re: [Xen-users] pv guest fails to start after 4.2 upgrade

[Travis Osterman <tosterman@xxxxxxxxx>]

>>> >> I also tried to take pvgrub out of the picture so I mounted the image
>>> >> and copied my initrd and kernel to the dom0 file system and updated my
>>> >> config with the appropriate ramdisk and kernel lines.
>>> >>
>>> >> Full output without pvgrub
>>> >> http://pastebin.com/c7VWWwXk
>>> >>
>>> >> Which dropped me in a shell asking for my root partition (progress).
>>>
>>> # cat /var/log/xen/qemu-dm-prime.log
>>> bind(unix:/var/run/xen/qmp-libxl-4): No such file or directory
>>> chardev: opening backend "socket" failed: No such file or directory
>>>
>>> # ls /var/run/xen*
>>> /var/run/xenconsoled.pid  /var/run/xenstored.pid
>>>
>>> /var/run/xenstored:
>>> socket  socket_ro
>>
>> Ah, you are missing the /var/run/xen/ directory so it is failing to
>> create the socket, if you create the directory does it work? Although
>> even if so it is obviously still a bug that libxl doesn't handle that
>> error...
>
> Ian,
>
> I can confirm the manually creating /var/run/xen fixes the problem.  I
> updated my bug report here
> https://bugs.gentoo.org/show_bug.cgi?id=459082
>
> Thank you for the help.
>

Similar error not solved by the above on a domain using pygrub (pvgrub works)

/var/log/xen/qemu-dm-domain.log
/var/tmp/portage/app-emulation/xen-tools-4.1.1-r6/work/xen-4.1.1/tools/ioemu-qemu-xen/hw/xen_blktap.
c:628: Init blktap pipes
Could not open /var/run/tap/qemu-read-2

Again loop device works fine.

-- T

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