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[Xen-users] debugging VM startup


I have a Debian domU that is refusing to boot. Attaching to the console (xm console) it seems to be in the middle of mounting a drive, and then hanging.

[    2.387986] EXT3-fs: mounted filesystem with ordered data mode.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... done.
INIT: version 2.86 booting
Starting the hotplug events dispatcher: udevd[ 5.467529] udevd version 125 started
Synthesizing the initial hotplug events...done.
Waiting for /dev to be fully populated...done.
Starting boot logger: bootlogd[ 6.190409] Adding 3145588k swap on /dev/xvda2. Priority:-1 extents:1 across:3145588k
[   89.796051] EXT3 FS on xvda1, internal journal

I know how I might proceed if I were booting a physical machine - try to come up in single user mode, failing that, boot with a live CD and start examining things. But... this is a VM, with more limited "hooks" into the boot process. Any suggestions on how to proceed?

Note, I'm running what's supposed to be a 2-node high-availability configuration (DRBD-mirrored drives, pacemaker). The underlying RAID10 and DRBD arrays are reporting good status, and other VMs are running just fine. This one just refuses to come up on either node in the cluster.


Miles Fidelman

In theory, there is no difference between theory and practice.
In<fnord>  practice, there is.   .... Yogi Berra

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