[Xen-devel] starting domain when block device already mounted

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

I just had a filesystem hosed in an unpriv domain (ext3 errors all over
the place), and then when I went to do a fsck on the block device it
told me it was already mounted, and sure enough, dom0 already had the
device mounted. Would that cause a filesystem crash, or at least errors?
Dom0 wasn't doing anything to the filesystem, and the unpriv domain had
been up for a few weeks before this occurred.

Anyway, I've done this a few times before by mistake - made a few
changes to the unpriv domain's filesystem from dom0 and forgot to
unmount it before starting the domain. Is there any easy way to get 'xm
create' to check before starting that none of the block devices it is
about to export are in use? Such a thing would probably save me
countless headaches in the future! (or maybe it's been done already? I'm
running 2.0.1)

Thanks

James


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