[linux-lvm] snapshot reset

Alasdair G Kergon agk at redhat.com
Wed Mar 16 23:10:00 UTC 2005

On Thu, Mar 17, 2005 at 12:00:40AM +0100, Bastian Blank wrote:
> Is it possible to reset a snapshot without a delete, create cycle?

Not sure if I'm answering the right question, but with

You have to suspend & resume it in the kernel [with existing device-mapper
implementation; this may change].

With LVM2, between those commands, you can just zero out the
start of the cow device (say first 64k).  And then it'll treat
it as if it were a new snapshot (based on current state of filesystem.)
agk at redhat.com

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