Currently zfsbe ensures that subordinate filesystems are mounted at the
right mount points.
The script assumes that the subordinate filesystems of a boot environment
have their canmount property set to noauto, so that they are not
automatically mounted on boot. Whereas the root filesystem is mounted
by the kernel, there was nothing to mount its subordinates.
rc.d/zfsbe fills that gap.
Discussed with: allanjude, will
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D7797
top of ZVOLs. The problem is that rc.d/fsck runs before rc.d/zfs. The
latter makes ZVOLs to appear in /dev/. In such case rc.d/fsck cannot
find devfs entry and aborts. We cannot simply move rc.d/zfs before
rc.d/fsck, because we first want kern.hostid to be configured (by
rc.d/hostid). If we won't wait (hostid will be 0) we can reuse disks
which are in use by different systems (eg. in SAN/NAS environment).
We also cannot move rc.d/hostid before rc.d/fsck, because rc.d/hostid on
first system start stores generated kern.hostuuid in /etc/hostid file,
so it needs root file system to be mounted read-write.
The fix is to split rc.d/hostid so that rc.d/hostid (which will now run
before rc.d/fsck) only generates hostid and sets up sysctls, but doesn't
touch root file system and rc.d/hostid_save (which is run after
rc.d/root) and only creates /etc/hostid file.
With that in place, we can move ZVOL initialization to dedicated
rc.d/zvol script which runs before rc.d/fsck.
PR: conf/120194
Reported by: James Snow <snow@teardrop.org>
Reviewed by: brooks
Approved by: re (kib)
MFC after: 2 weeks
mountcritremote REQUIREs FILESYSTEMS, and that script REQUIREs zfs,
so this change is a noop. By removing it we make life a little easier
both for rcorder(8) and for debugging down the road.
Approved by: 2 weeks of silence from pjd
'zfs mount -a' from the main system - this is by design, as mountpoint
may be set to dangerous value. This all means, that such file system
has to be mounted from within a jail. To make it easier, reorganize
rc.d/zfs script so it can be used from within a jail.
NFS-share anything. This way we can safely start mountd with
/etc/zfs/exports and mountd won't complain.
Pointed out by: ceri
- Move 'zfs volinit' before 'zfs mount -a' and 'zfs volfini' after
'zfs unmount -a'.
