16.04 - How to let non root user take ZFS snapshot? - Ask Ubuntu


i trying let non root user create zfs snapshots.

i've created permission set , given appropriate user privileges defined in it:

root@computer:~# zfs allow homepool/myuser ---- permissions on homepool/myuser ----------------------------------- permission sets:     @myuser_allowed mount,snapshot local+descendent permissions:     user myuser @myuser_allowed 

but when try create snapshot following error:

root@computer:~# su - myuser myuser@computer:~$ /sbin/zfs snapshot homepool/myuser@`date +%f_%r` permission denied zfs utilities must run root. 

creating snapshot root works expected:

root@computer:~# zfs snapshot homepool/myuser@`date +%f_%r` root@computer:~# zfs list -t snapshot name                              used  avail  refer  mountpoint homepool/myuser@2016-10-30_19:01    44k      -  5,32g  - homepool/myuser@2016-10-30_19:37      0      -  5,32g  - 

do need add else permission set? or privileges on zfs binary?

root@computer:~# ls -l `which zfs` -rwxr-xr-x 1 root root 103352 okt  5 15:05 /sbin/zfs 

applying privileges described here works no better:

root@computer:~# zfs allow -s @myuser_allowed create,mount,snapshot,clone,promote homepool/myuser root@computer:~# zfs allow homepool/myuser ---- permissions on homepool/myuser ----------------------------------- permission sets:     @myuser_allowed clone,create,mount,promote,snapshot local+descendent permissions:     user myuser @myuser_allowed root@computer:~# su - myuser myuser@computer:~$ /sbin/zfs snapshot homepool/myuser@`date +%f_%r` permission denied zfs utilities must run root. 

it seems zfs allow support added feature in (the still not released) zol 0.7.0.

judging names of installed packages (why can't zfs --version?):

# dpkg-query --list | grep -i zfs ii  libzfs2linux                                0.6.5.6-0ubuntu14                             amd64        native openzfs filesystem library linux ii  libzpool2linux                              0.6.5.6-0ubuntu14                             amd64        native openzfs pool library linux ii  zfs-doc                                     0.6.5.6-0ubuntu14                                      native openzfs filesystem documentation , examples. ii  zfs-zed                                     0.6.5.6-0ubuntu14                             amd64        openzfs event daemon (zed) ii  zfsutils-linux                              0.6.5.6-0ubuntu14                             amd64        native openzfs management utilities linux 

ubuntu 16.04 seem running version 0.6.5of zfs on linux.

that's explanation why not working me. error message could've been more explicit imho.


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