I'm running Debian 10 in a VM (using KVM) and I want to use ZFS as a non-root user. Here is what I did.
I added this line to my sources.list file
deb http://deb.debian.org/debian buster-backports main contrib non-free
Here is my complete sources.list file
deb http://deb.debian.org/debian buster main contrib non-free
deb-src http://deb.debian.org/debian buster main contrib non-free
deb http://deb.debian.org/debian-security/ buster/updates main contrib non-free
deb-src http://deb.debian.org/debian-security/ buster/updates main contrib non-free
deb http://deb.debian.org/debian buster-updates main contrib non-free
deb-src http://deb.debian.org/debian buster-updates main contrib non-free
deb http://deb.debian.org/debian buster-backports main contrib non-free
I installed ZFS
sudo apt install zfs-dkms zfsutils-linux -y
Then during the installation I got the following error
Failed to start Mount ZFS filesystems
And I resolved my problem by running
sudo /sbin/modprobe zfs
sudo apt upgrade -y
I added the following line to the /etc/modules
zfs
There is 2 disks connected to my VM :
- /dev/sdb
- /dev/vda
I created a pool
sudo zpool create -f mypool mirror /dev/vda /dev/sdb
See my zpool list
$ sudo zpool list
NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
mypool 9.94G 291K 9.94G - 0% 0% 1.00x ONLINE -
And my zpool status
$ sudo zpool status
pool: mypool
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
mypool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
vda ONLINE 0 0 0
sdb ONLINE 0 0 0
errors: No known data errors
Then I tried to delegate ZFS permissions. So I added a new user :
sudo adduser zfsuser
I changed the permissions of /mypool/
sudo chown zfsuser:zfsuser /mypool -R
sudo chmod u+rwx /mypool -R
sudo chmod go-rwx /mypool -R
Then I gave the permissions
sudo zfs allow -u zfsuser create,destroy,mount mypool
Here is the result of zfs allow mypool
$ sudo zfs allow mypool
---- Permissions on mypool -------------------------------------------
Local+Descendent permissions:
user zfsuser create,destroy,mount
But when I log as zfsuser
su zfsuser
The user isn't able to mount even if I gave the permission in a previous command
$ /sbin/zfs create mypool/test
filesystem successfully created, but it may only be mounted by root
What am I missing ? Should I edit my fstab file to allow zfsuser to mount ? How should I do that ?
Thanks
