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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.