samvde, can you provide your `zfs list` output? The script seems designed to only import filesystems *below* the filesystem that is the root filesystem. In the typical case, the root filesystem is something like rpool/ROOT/ubuntu. There typically shouldn't be children of rpool/ROOT/ubuntu.
samvde, can you provide your `zfs list` output? The script seems designed to only import filesystems *below* the filesystem that is the root filesystem. In the typical case, the root filesystem is something like rpool/ROOT/ubuntu. There typically shouldn't be children of rpool/ROOT/ubuntu.