Messages in this thread | | | Date | Thu, 16 Oct 2008 12:33:38 +0200 | From | Pavel Machek <> | Subject | Re: [TuxOnIce-devel] safe resuming: automatically invalidating an outdated hibernate snapshot |
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On Mon 2008-10-13 13:35:25, Martin Steigerwald wrote: > Am Montag, 13. Oktober 2008 schrieben Sie: > > Hi Martin. > > Hi Nigel, > > > On Mon, 2008-10-13 at 12:13 +0200, Martin Steigerwald wrote: > > > Cc to linux-kernel: This is mainly for tuxonice, but it might also be > > > relevant for other hibernate implementations. Maybe some general > > > mechanism for checking whether an on disk snapshot of the system is > > > current would be good - as also the resume parameter could be missing or > > > wrong or whatnot. > > > > > > > > > Hi! > > > > > > Is there a way to automatically invalidate the tuxonice snapshot when a > > > non tuxonice kernel is booted accidentally? I.e. could tuxonice recognize > > > when the swap partition has been accessed *after* the snapshot has been > > > written? > > [...] > > > The simplest way is to mkswap the appropriate partitions from a script > > run when booting (after we check whether to resume, of course). I > > believe the hibernate script already has support for this. Maybe > > pm-utils or such like needs it too? > > Simple idea. But I dislike automatically formatting a partition on each boot. > What if the user changes the partition layout and forgets to adapt > swap
Simple solution: add --only-mkswap-when-its-hibernation-image option to mkswap. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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