[Pkg-zfsonlinux-devel] Bug#1034022: zfs filesystems are mounted before local filesystems

[Dietz Proepper]

Package: zfsutils-linux
Version: 2.1.9-1~bpo11+1
Severity: important
X-Debbugs-Cc: dietz.debian at scanthis.de

Hi,
I have the following problem:
given:
- a system with mixed zfs/ext4 fses
- /var resides on an ext4 fs
- /var/lib/docker shall be zfs
then:
- first the zfs fses gets mounted (on the root fs)
- then, local fses get mounted, hiding the zfs fs mounted on /var/lib/docker
  from root fs.

The reason seems to be, that /lib/systemd/system/zfs-mount.service
contains a "Before=local-fs.target" dependency which can not be overridden.
My workaround here is quite simple, a separate unit for zfs mounts.

But would it perhaps make sense to chang the mount order? *FIRST* the
standard mounts ("local fs") and *THEN* the special ones?

-- System Information:
Debian Release: 11.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 
'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.15.99 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not 
set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages zfsutils-linux depends on:
ii  init-system-helpers  1.64~bpo11+1
ii  libblkid1            2.36.1-8+deb11u1
ii  libc6                2.31-13+deb11u5
ii  libnvpair3linux      2.1.9-1~bpo11+1
ii  libuuid1             2.36.1-8+deb11u1
ii  libuutil3linux       2.1.9-1~bpo11+1
ii  libzfs4linux         2.1.9-1~bpo11+1
ii  libzpool5linux       2.1.9-1~bpo11+1
ii  python3              3.9.2-3

Versions of packages zfsutils-linux recommends:
ii  lsb-base                11.1.0
ii  zfs-dkms [zfs-modules]  2.1.9-1~bpo11+1
ii  zfs-zed                 2.1.9-1~bpo11+1

Versions of packages zfsutils-linux suggests:
pn  nfs-kernel-server  <none>
ii  samba-common-bin   2:4.17.7+dfsg-1~bpo11+1
ii  zfs-initramfs      2.1.9-1~bpo11+1

-- Configuration Files:
/etc/sudoers.d/zfs [Errno 13] Keine Berechtigung: '/etc/sudoers.d/zfs'

-- no debconf information
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