Delete all ZFS Snapshots

ZFS Snapshot Deletion

zfs list -H -o name -t snapshot | xargs -n1 zfs destroy

add -r poolname after snapshot to pick a particular dataset.

Doesn't work on Ubuntu 20.04
cannot destroy snapshots: permission denied

Are you root?

I tried with sudo and even sudo -s but it didn't work
I tried on Ubuntu 20.04 but still it doesn't work

Switch to root first. sudo doesn't travel down pipes without tees or something.

sudo -i
zfs list -H -o name -t snapshot | xargs -n1 zfs destroy

zfs list -H -o name -t snapshot | xargs -n1 sudo zfs destroy

works for me on 20.04

Okay... I don't know why this didn't work for me.

…

On Fri, Jun 12, 2020 at 7:40 PM KernelPanic ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ zfs list -H -o name -t snapshot | xargs -n1 sudo zfs destroy works for me on 20.04 — You are receiving this because you commented. Reply to this email directly, view it on GitHub <https://gist.github.com/4de71ddfae05e974c829#gistcomment-3339564>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANMNSRHI2FGN7N4UCE5G4UDRWIV6DANCNFSM4MW3W6JQ> .

Recommend to be aware that unless specified a dataset ALL snapshots gets deleted. here is a USER specific example on Ubuntu 20.04:

$ sudo zfs list -H -o name -t snapshot rpool/USERDATA/example | sudo xargs -n1 zfs destroy

You can also zfs destroy rpool@%.

foo%bar denotes a range of snapshots from foo to bar; omitting either uses the earliest or latest snapshot respectively.

thanks! works after sudo su

So guys a little help here, I deleted all the snapshots cause they were taking up all the space, it worked fine for a while, but now Ubuntu will not boot up showing a sys error "Failed to MARK current zsys boot as successful".Any solutions

I suspect it's how ubuntu does things with zsys and you'd be better off asking on ubuntu forums.