[CentOS] Xen VMs: regular filesystem corruption
maillists at conactive.com
Fri Oct 12 12:31:59 UTC 2007
It seems that Xen VMs are subject to file system corruption under certain
conditions. I find that often when I reboot or shutdown a VM the
filesystem is corrupted after that and the VM no longer usable. The xm
create then fails with some Python errors and an eventual
Runtime Error: unable to read filesystem
No handlers could be found for logger "xend".
Error: boot loader didn't return any data.
and I have to throw it away as there doesn't seem a way to fix that (or is
I use files for storing the VMs. There is enough space on the drive. The
problem seems to happen when I reboot the machine from within itself, not
each time, but almost each time. When I shut it down with CTRL+ALT+DEL or
with the Shutdown button it doesn't seem to happen.
I also find that sometimes a good VM will start up and crash early with a
kernel panic, but start up just fine when I try a second or third time.
Most often this happened after a new installation on the first reboot.
Anyone else seen this or known how to fix that?
Kai Schätzl, Berlin, Germany
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