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I have a Ubuntu server set up with a 14-disk ZFS raidz2 pool.

My boot device has become corrupted and I'm not able to mount its file system from a recovery live CD, so I will need to reinstall Ubuntu on a new boot drive and bring back my ZFS pool.

Unfortunately, I do not have any record or backups of the pool configuration. I know the drives were assigned /dev/sda through /dev/sdn and that these were members of a ZFS pool named tank.

Is there a way to recover a ZFS pool with just the media and nothing else? Does zfs import have enough to restore the pool just by examining the drives?

David Chappelle
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  • What does zpool list say ? Does it say there is no pool ? Did you try zpool import -D to list destroyed pools ? – Overmind Jan 20 '20 at 07:10
  • Check this thread - https://unix.stackexchange.com/questions/483465/restore-zfs-pool-and-storage-data-after-a-system-re-install – batistuta09 Jan 20 '20 at 21:31
  • @batistuta09 Thanks for the link. After further troubleshooting, the OS drive was mountable in ro,noload mode which means there was something wrong with the journalled file system. I was able to clone the drive to a portable SSD and boot from it normally. Anybody who finds this question later should refer to your link. – David Chappelle Jan 22 '20 at 21:04

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