From: dima <dolenin@parallels.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: Snapshot rollback
Date: Mon, 24 Oct 2011 05:45:06 +0000 (UTC) [thread overview]
Message-ID: <loom.20111024T071806-3@post.gmane.org> (raw)
In-Reply-To: 4EA46E3A.9090307@cfl.rr.com
Phillip Susi <psusi <at> cfl.rr.com> writes:
> I created a snapshot of my root subvol, then used btrfs-subvolume
> set-default to make the snapshot the default subvol and rebooted. This
> seems to have correctly gotten the system to boot from the snapshot
> instead of the original subvol, but now /home ( @home subvol ) refuses
> to mount claiming that /dev/sda1 is not a valid block device. What gives?
Hello Phillip,
It is hard to judge without seeing your fstab and bootloader config. Maybe your
/ was directly in subvolid=0 without creating a separate subvolume for it (like
__active in Goffredo's reply)? In my very humble opinion, if you have your @home
subvolume under subvolid=0 and then change the default subvolume, it just cannot
access your @home any more.
Personally I do not store anything in subvolid=0 directly and never bothered
with 'set-default' option - just used a new subvolume/snapshot name
- create a named snapshot
- edit bootloader config to include the new
rootflags=subvol=<your_new_snapshot_name>
- reboot
Here is a very good article that explains the working of subvolumes. I used it
as reference a lot.
http://www.funtoo.org/wiki/BTRFS_Fun#Using_snapshots_for_system_recovery_.28aka_Back_to_the_Future.29
~dima
next prev parent reply other threads:[~2011-10-24 5:45 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-23 19:42 Snapshot rollback Phillip Susi
2011-10-23 20:35 ` Goffredo Baroncelli
2011-10-24 5:45 ` dima [this message]
2011-10-24 5:58 ` Fajar A. Nugraha
2011-10-24 8:24 ` dima
2011-10-24 12:11 ` Fajar A. Nugraha
2011-10-25 2:00 ` dima
2011-10-25 8:01 ` Fajar A. Nugraha
2011-10-25 8:54 ` dima
2011-10-25 9:01 ` Fajar A. Nugraha
2011-10-25 0:45 ` Phillip Susi
2011-10-25 2:04 ` Arand Nash
2011-10-26 1:30 ` Phillip Susi
-- strict thread matches above, loose matches on Subject: below --
2019-07-05 10:38 snapshot rollback Ulli Horlacher
2019-07-05 11:06 ` Ulli Horlacher
2019-07-05 11:47 ` Remi Gauvin
2019-07-05 13:03 ` Graham Cobb
2019-07-05 21:18 ` Chris Murphy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=loom.20111024T071806-3@post.gmane.org \
--to=dolenin@parallels.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox