Re: Back to the future.

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On May 04, 2007, at 03:52:03, David Greaves wrote:
Kyle Moffett wrote:
On May 03, 2007, at 11:10:47, Pavel Machek wrote:
What happens if you try to boot and filesystems are frozen from previous run?

If you're just doing a fresh boot then the filesystem is already clean due to the dm freeze and so it mounts up normally. All you need to do then is have a little startup script which purges the saved image before you fsck or remount things read-write since either case means the image is no longer safe to resume.

Wouldn't it be better if freeze wrote a freeze-ID to the fs and returned it? This would naturally be kept in the image and a UUID mismatch would be detectable - seems safer and more flexible than 'a script'.

"This isn't the freeze you're looking for, move along"

Possibly, but I was referring to the _current_ behavior of the device- mapper freezing. While perhaps not ideal, it's currently very easily usable.

Cheers,
Kyle Moffett

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