Open Stack

On 08/07/2013 06:54 PM, Monty Taylor wrote:
> 
> 
> On 08/07/2013 12:53 PM, Joshua Harlow wrote:
>> I agree triple-o will help a lot here although I would disagree that
>> package rollback is an illusion. I would call it more of a hard
>> problem instead since nothing is really impossible :)
> 
> illusion with current packaging systems yum/rpm and apt/dpkg.
> 
> One of the reason that Ian Murdock worked on OpenSolaris was to try to
> make a next-gen packaging system. It was called IPS (image packaging
> system) and was based on ZFS filesystem transaction abilities. So you'd
> start a ZFS transaction before you started doing an IPS operation, and
> then if that action was successful, you'd commit.

Seems similar to:
https://fedoraproject.org/wiki/Features/SystemRollbackWithBtrfs

cheers,
Pádraig.