19
Question about mounting ZFS pool (lemmy.world)
submitted 2 months ago by hoxbug@lemmy.world to c/selfhosted@lemmy.world
8 comments fedilink hide all child comments

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.

you are viewing a single comment's thread
view the rest of the comments
[-] Max_P@lemmy.max-p.me 2 points 2 months ago

I learned it accidentally trying to get root on an encrypted dataset working with systemd init without sd-zfs. This turns out to be how the zfs utility works internally to signal the driver "hey it's okay, I'm a ZFS utility the user isn't using mount directly", and how you deal with mounting your root dataset to the temporary /sysroot while having its mountpoint set to / while in initramfs before pivoting root.

Obviously, don't use that other than recovering your data, if you want to use this array you should figure out the mountpoints properly so ZFS does it automatically. It shouldn't break anything but it's gross, either set mointpoint=legacy and use fstab or set its mountpoint in ZFS and use zfs mount.

this post was submitted on 22 Aug 2024
19 points (95.2% liked)

Selfhosted

39677 readers
250 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz