c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2024-12-26 03:09:34 +03:00
Code Issues Packages Projects Releases Wiki Activity

initramfs: Honor canmount=off

Browse Source 
The initramfs script was not honoring canmount=off.  With this change,
it does.  If the administrator has asked that a filesystem not be
mounted, that should be honored.

As an exception, the initramfs script ignores canmount=off on the
rootfs.  The rootfs should not have canmount=off set either.  However,
mounting it anyway seems harmless because it is being asked for
explicitly.  The point of this exception is to avoid the risk of
breaking existing systems, just in case someone has canmount=off set on
their rootfs.

The initramfs still mounts filesystems with canmount=noauto.  This is
necessary because it is typical to set that on the rootfs so that it can
be cloned.  Without canmount=noauto, the clones' duplicate mountpoints
would conflict.

This is the remainder of the fix for:
https://github.com/zfsonlinux/pkg-zfs/issues/221

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #6897
This commit is contained in:
Richard Laager 2017-11-23 23:08:02 -06:00 committed by Tony Hutter
parent 4e11137989
commit 68ba1d2fa9
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
contrib/initramfs/scripts/zfs
View File

@ -317,6 +317,14 @@ mount_fs()
"${ZFS}" list -oname -tfilesystem -H "${fs}" > /dev/null 2>&1
[ "$?" -ne 0 ] && return 1
# Skip filesystems with canmount=off. The root fs should not have
# canmount=off, but ignore it for backwards compatibility just in case.
if [ "$fs" != "${ZFS_BOOTFS}" ]
then
canmount=$(get_fs_value "$fs" canmount)
[ "$canmount" = "off" ] && return 0
fi
# Need the _original_ datasets mountpoint!
mountpoint=$(get_fs_value "$fs" mountpoint)
if [ "$mountpoint" = "legacy" -o "$mountpoint" = "none" ]; then