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Question about mounting ZFS pool (lemmy.world)

submitted 2 months ago by [email protected] to c/[email protected]

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Hello, I have had a pool of two hard drives in a mirror pool for some time but the OS got corrupted and I reinstalled the OS. Now I am on Linux Mint and my pool does not appear any more. When I use zpool import it says no pool available to import, I have looked around online and found you can import a zpool by specifying the drives, so I used zpool import -f -d /dev/sda1 -f -d /dev/sdb1 internal I get back my pool

pool: internal state: ONLINE scan: scrub repaired 0B in 00:08:39 with 0 errors on Tue Jun 18 18:38:40 2024 config:

NAME        STATE     READ WRITE CKSUM
internal    ONLINE       0     0     0
  mirror-0  ONLINE       0     0     0
    sdb     ONLINE       0     0     0
    sda     ONLINE       0     0     0

errors: No known data errors

But I am unable to mount the pool, zfs mount internal returns

cannot mount 'internal': legacy mountpoint use mount(8) to mount this filesystem

I tried using mount but I am not having any success, saying mount: internal: can't fin in /etc/fstab.

Is there any chance to get this pool back on the computer or is it a lost cause.

Thank you for the help.

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[–] [email protected] 1 points 2 months ago

The trick for this one is mount -t zfs -o zfsutil internal /mnt/some/path

Assuming the root dataset is mountable. If you have a -o canmount=off on the dataset it will refuse to mount.

If it's -o mountpoint=legacy then you don't need -o zfsutil, but still need to provide both the source and destination paths. Otherwise you'll get the fstab error because mount can't figure out what to mount or where to mount it.