Tell HN: Ubuntu 21.10 is currently broken when using ZFS

5 points by Flimm 4y ago ↗ HN

I just wasted a few hours upgrading to Ubuntu 21.10 and experiencing filesystem corruption on my ZFS filesystem.

I also experienced filesystem corruption after a fresh installation of Ubuntu 21.10 with ZFS.

It turns out there is a known issue with ZFS on Ubuntu 21.10 mentioned in the long release notes. I thought I would draw attention to it to save other people time and prevent losing data.

2 comments

[ 3.5 ms ] story [ 17.7 ms ] thread

nikonyrh 4y ago ↗

Any links for a reference?

Flimm 4y ago ↗

Here are the release notes for Ubuntu 21.10: https://discourse.ubuntu.com/t/impish-indri-release-notes/21...

Search for "ZFS". You'll find this part under "Known Issues":

> The version of the ZFS driver included in the 5.13.0-19 kernel contains a bug that can result in filesystem corruption. Users of ZFS are advised to wait until the first Stable Release Update of the kernel in 21.10 before upgrading.