On 11/17/2009 02:43 AM, nodata wrote:
Am 2009-11-17 01:55, schrieb Chris Ball:
Hi,
I've written up a draft of an F13 filesystem rollback feature using Btrfs snapshots that are automatically created by yum:
https://fedoraproject.org/wiki/Features/SystemRollbackWithBtrfs
It'd be great to get feedback on whether this is the right idea, and how exactly the UI interaction should work, before submitting this formally.
Thanks!
- Chris.
So this will confuse things a lot if the user doesn't have only rpm stuff on one partition, and everything else on another. This is potentially a major risk. How would that be handled?
Mr. nodata,
As the URL notes under "Detailed Description," that is not handled at all. It wraps all file I/O, yum or not, into the snapshot.
A bloody awful solution, especially when you consider that btrfs' maintainer Chris Mason is adding support for real userland transactions (via some additional ioctls).
Jeff