Re: No files in snapshot

[Thomas Schneider <74cmonty@gmail.com>]

Hi,

I was thinking of this, too. But it does not apply.
root@ld5507:~# btrfs su list -to /var/lib
ID      gen     top level       path
--      ---     ---------       ----
root@ld5507:~# btrfs su list -to /var
ID      gen     top level       path
--      ---     ---------       ----

And there are files in other directories:
root@ld5507:~# ls -l /.snapshots/158/snapshot/var/lib/ceph/mgr/ceph-ld5507/
insgesamt 4
-rw-r--r-- 1 ceph ceph 61 Mai 28 14:33 keyring

root@ld5507:~# ls -l /.snapshots/158/snapshot/var/lib/ceph/mon/ceph-ld5507/
insgesamt 12
-rw------- 1 ceph ceph  77 Mai 28 14:33 keyring
-rw-r--r-- 1 ceph ceph   8 Mai 28 14:33 kv_backend
-rw-r--r-- 1 ceph ceph   3 Aug 23 09:41 min_mon_release
drwxr-xr-x 1 ceph ceph 244 Aug 26 18:37 store.db

Only this directories 
/.snapshots/158/snapshot/var/lib/ceph/osd/ceph-<id>/ are empty:
root@ld5507:~# ls -l /.snapshots/158/snapshot/var/lib/ceph/osd/ceph-219/
insgesamt 0

To create a snapshot I run this command:
snapper create --type single --description "validate 
/var/lib/ceph/osd/ceph-<n>"



Am 28.08.2019 um 00:24 schrieb Chris Murphy:
> On Tue, Aug 27, 2019 at 3:33 AM Thomas Schneider <74cmonty@gmail.com> wrote:
>> However, I run into an issue and need to restore various files.
>>
>> I thought that I could simply take the files from a snapshot created before.
>> However, the files required don't exist in any snapshot!
>>
>> Therefore I have created a new snapshot manually to verify if the files
>> will be included, but there's nothing.
> Snapshots are not recursive on Btrfs. The snapshot will not extend
> into nested subvolumes. Check to see if you are snapshotting the
> proper subvolume.
>
> # btrfs sub list -to /var/lib
> # btrfs sub list -to /var/
>
> In some sense these are redundant, I'm not sure if your /var/lib is a
> subvolume or not. Also please include the exact snapshot command
> you're making.
>