canmount=noauto causes failure of zfs mount -R, zfs mount -a, and zfs unmount -a #18244
Description
System information
| Type | Version/Name |
|---|---|
| Distribution Name | OpenSUSE Tumbleweed |
| Distribution Version | 20260212 |
| Kernel Version | 6.18.9 |
| Architecture | x86_64 |
| OpenZFS Version | 2.4.0 |
Describe the problem you're observing
canmount=noauto causes failure of zfs mount -R, zfs mount -a, and zfs unmount -a
Describe how to reproduce the problem
zfs create -o canmount=noauto zroot/dummy leaves zroot/dummy unmounted as expected, as shown by zfs mount.
Bug 1: zfs mount -R zroot/dummy and zfs mount -a both silently fail to mount zroot/dummy, as shown by zfs mount.
zroot/dummy can only be mounted with zfs mount zroot/dummy: i.e no -R or -a flag.
Bug 2: zfs unmount -a silently fails to unmount zroot/dummy, as shown by zfs mount.
zroot/dummy can only be unmounted with zfs unmount zroot/dummy: i.e no -a flag.