On 2017-10-24 09:28, Lentes, Bernd wrote:
-----Original Message-----
From: Austin S. Hemmelgarn [mailto:ahferroin7@xxxxxxxxx]
Sent: Tuesday, October 24, 2017 1:53 PM
To: Adam Borowski <kilobyte@xxxxxxxxxx>; Lentes, Bernd
<bernd.lentes@xxxxxxxxxxxxxxxxxxxxx>
Cc: Btrfs ML <linux-btrfs@xxxxxxxxxxxxxxx>
Subject: Re: SLES 11 SP4: can't mount btrfs
I think partimage _might_ have BTRFS support by now, and if so, that's
likely to be the best you can get for quite some time.
Unfortunately not: http://www.partimage.org/Supported-Filesystems/
It depends on what you use subvolumes for.
And this is the important part. If you're just using them to segregate
workloads (like I do), or exclude things from snapshots (like I used to do
when I was using snapshots for backups), then any old backup program is
fine as long as you know enough to replicate the subvolume layout when
extracting (if you need the same layout that is). I'm actually working on
a
script to automate this for file-level backups (stuff like Amanda, Bareos,
and borgbackup), but I don't have anything ready to share yet.>
There seems to be no backup solution which supports BTRFS in a way that I
can just restore the complete partition with all subvolumes, snapshots ?
That's bad. A fs can also get corrupt in certain circumstances.
I'd like to have a solution which offers me the possibility to restore a
root partition in a reasonable time (some hours maximum), completely. Not
doing many stuff before/afterwards. It seems that's not possible withBTRFS.
A short-term alternative, if you've got a full backup of what SLES
mounts as /, is to run a regular install, boot the system, and then
extract the backup on top of /. It's not perfect, but it should work
well enough.
As mentioned, I'm working on a script to handle this for tools like
Amanda and Bareos. I plan to send a message out on the list when that's
sufficiently working that I think it's safely usable, I can make sure
you're on CC for that message as well if you like. I hoped to have
something later this week, but things are busier than expected at work
this week, so it might be a while.
And Btrfs check is still limited in what it can do.
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