Rich Freeman on 20 Apr 2016 17:04:06 -0700

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Re: [PLUG] [plug-announce] TOMORROW - Tue, Apr 19, 2016: PLUG North - "Linux Containers" by Jason Plum and Rich Freeman (*6:30 pm* at CoreDial in Blue Bell)

On Wed, Apr 20, 2016 at 3:37 PM, Keith C. Perry
<> wrote:
> Failed to create snapshot /.#machine.4fdf96bbc0c40191 from /: Inappropriate ioctl for device
> This is indeed not using btrfs.  This seems like a design mistake since it forces the use of a particular filesystem which for now is not even production quality.  A more agnostic and production quality requirement would have been to hook into LVM and use its snap-shotting facilities.  I suspect somewhere out there is a conversation about why this was not done but I didn't check.

With LVM can you easily revert to a snapshot?  I know in the past that
wasn't possible, but that could have changed.

In any case, certainly no harm in supporting both if it is practical.
LVM is hardly agnostic though.  You can only use LVM snapshots if you
use LVM, and there isn't much point in using LVM if you're using
btrfs.  I imagine it would be pretty painful to use multi-device
support on btrfs in conjunction with LVM.

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