Backup a whole drive or mount point on Linux

1

Hi,

I want to do a backup of a whole partition in Linux. Image backup is not supported so I want to backup the files.

If I set the default directories to “/” I assume to backup all mounted volumes (for example /media/…). How can I tell UrBackup to only backup all files from a specified mount or partition?

For example I have this:

/dev/sda1 on / type ext4 (rw,noatime,nodiratime,errors=remount-ro,data=ordered)
/dev/sdb1 on /media/00fc206e-9549-4147-a0d8-a9a5c73ab6b6 type ext4 (rw,noexec,relatime,data=ordered,jqfmt=vfsv0,usrjquota=aquota.user,grpjquota=aquota.group)
/dev/sdc1 on /media/d9d617a1-cb1f-4473-97c1-411edb5983ef type btrfs (rw,relatime,space_cache,subvolid=5,subvol=/)

And I only want to backup all files from /dev/sda1

2

If you backup with a snapshot this will automatically happen. Otherwise you’ll have to add / with urbackupclientctl add-backupdir -d / --one-filesystem.

3

I don’t use the command line to call the client. I use the client daemon which is controlled by the server configuration. Where can I set this in the configuration?

4

See https://www.urbackup.org/administration_manual.html#x1-640008.3.4 then ( 8.3.4 Default directories to backup ).

5

Oh, I already read this but didn’t read the flags part. Sorry and thank you!

But now: How to write it?
The seperator is “/” and the path is “/” too. So it would be: “//one_filesystem,follow_symlinks,symlinks_optional,share_hashes”
Or do I need to use “” as seperator instead?

(How would the software know if “/bla/one_filesystem” is “/bla”+“one_filesystem” or “/bla/one_filesystem”+"" ?)

EDIT:
I tried now “/media/1a5fbc04-f738-4a9f-95d0-f69f43952f0a;/|system drive/follow_symlinks,symlinks_optional,share_hashes,one_filesystem” but it fails with message:
Constructing of filelist of “omv” failed: no backup dirs. Please add paths to backup on the client (via tray icon) or configure default paths to backup.

6

That should have worked. Can you check if it got transferred to /usr/local/var/urbackup/data/settings.cfg on the client?

7

default_dirs_def=/media/1a5fbc04-f738-4a9f-95d0-f69f43952f0a;/|system drive/follow_symlinks,symlinks_optional,share_hashes,one_filesystem

(How do you do the code markup?)

8

Maybe there’s a hint in /var/log/urbackupclient.log ?

9

There was nothing about that. I now restarted UrBackup server and client daemons and now (without changing the configuration) it seems to work. Actually 26% done.

EDIT:
Finished and only this partition was backuped. I have some errors in the log but it worked:
Warnings

03.11.16 17:13
Error getting complete file “q0WxvKmkTu5K5yWIKfip|system drive/usr/local/var/urbackup/data/filelist_new.ub” from omv. Errorcode: CANNOT_OPEN_FILE (3)
Errors

03.11.16 17:17
HT: Error getting free space for path “/media/d9d617a1-cb1f-4473-97c1-411edb5983ef/urbackup/omv/161103-1709/system drive/var/cache/openmediavault/cache.omv\controlpanel\administration_admin_js.json”
Errors

03.11.16 17:17
HT: Error getting free space for path “/media/d9d617a1-cb1f-4473-97c1-411edb5983ef/urbackup/omv/161103-1709/system drive/var/cache/openmediavault/cache.omv\controlpanel\login_js.json”
Warnings

03.11.16 17:18
Metadata file and “/media/d9d617a1-cb1f-4473-97c1-411edb5983ef/urbackup/omv/161103-1709/system drive/var/cache/openmediavault/cache.omv\controlpanel\administration_admin_js.json” do not exist. Skipping applying metdata for this file.
Warnings

03.11.16 17:18
Metadata file and “/media/d9d617a1-cb1f-4473-97c1-411edb5983ef/urbackup/omv/161103-1709/system drive/var/cache/openmediavault/cache.omv\controlpanel\login_js.json” do not exist. Skipping applying metdata for this file.
Warnings

03.11.16 17:19
Not all folder metadata could be applied. Metadata was inconsistent.