Trying to retrieve files from an old pool

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Trying to retrieve files from an old pool

Postby ssartor » Sun Sep 21, 2025 7:43 am

Hi,

I had an old machine running Nas4free on which I had a mirrored 1TB pool (Pool00). I decommissioned the machine and pulled the drives out but now find that I need to retrieve some files from one of the datasets in the pool. I installed OpenZFS on my Mac Studio successfully:
zfs version
zfs-2.3.0-1
zfs-kmod-2.3.0-1

I was also able to import the pool on one of the drives:

/dev/disk4 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: Pool00 *1.0 TB disk4
zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
Pool00 928G 184G 744G - - 3% 19% 1.00x DEGRADED -

On the old Nas4free machine the pool was mounted at /mnt/Pool00.
On my Mac, I see the following:
zfs list
NAME USED AVAIL REFER MOUNTPOINT
Pool00 184G 716G 96K /mnt/Pool00
Pool00/Backup 16.2G 716G 16.2G /mnt/Pool00/Backup
Pool00/Family 49.8G 716G 49.8G /mnt/Pool00/Family
Pool00/General 33.8G 716G 33.8G /mnt/Pool00/General
Pool00/Music 6.51G 716G 6.51G /mnt/Pool00/Music
Pool00/Video 30.4G 716G 30.4G /mnt/Pool00/Video

What I can't figure out is how I can mount the pool on Mac so I can get access to the files.
What am I missing?

Thanks for any help!
ssartor
 
Posts: 2
Joined: Sun Sep 21, 2025 7:31 am

Re: Trying to retrieve files from an old pool

Postby Arne » Sun Sep 21, 2025 9:51 am

Your pool IS already mounted under "/mnt/pool00".
If you want the pool to be mounted in your home directory then change the mountpoint of the pool
Code: Select all
sudo zfs set mountpoint=/Users/<your-username>/pool00

or
Code: Select all
sudo zfs set mountpoint=/Volumes/pool00 pool00

as it would be the standard mountpoint of pools.

The datasets would inherit their mountpoints from pool00.
Arne
 
Posts: 33
Joined: Mon Oct 29, 2018 7:59 am

Re: Trying to retrieve files from an old pool

Postby ssartor » Sun Sep 21, 2025 2:40 pm

This did the trick...
sudo zfs set mountpoint=/Volumes/pool00 pool00

Mounted all the datasets on my Desktop and I'm able to retrieve the files I need!

Thanks for your help!
ssartor
 
Posts: 2
Joined: Sun Sep 21, 2025 7:31 am


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