ZFS pools or data sets won't mount
$ uname -a Linux s8 5.10.16-0-lts #1 (closed)-Alpine SMP Wed, 17 Feb 2021 08:17:06 UTC x86_64 Linux
or alpine-extended-3.13.2-x86_64 ZFS (presumably 2.0.3-r0, as downloaded with apk)
When creating or importing zpools or zfs datasets I get the following error: "cannot mount 'pool': Insufficient privileges"
dmesg shows: VFS: "mand" mount option not supported
Seems like mount wants a mandatory lock, but the kernel doesn't support it. At least, as far as I can tell, it's deprecated.
Does this mean that ZFS on Linux is broken in Alpine Linux?
If not, is there a fix?
Thanks.