systemd mount fstab problem

[dabicho]

I have a weird problem with mounting some partitions. they are lvm

I have said partitions configured in fstab with defaults and after a hard reboot, they stopped 'working' with systemd sending me to rescue mode.

And this is whay I found.

I set the partitions' options to noauto,defaults

I cannot mount the partitios to their directories nor crossing.
mount returns success though and there is no error anywhere.

I can mount them to different places however or if I comment them out of fstab and run
systemctl daemon-reload
I can mount them to their original places.
I can even uncoment them without running
systemctl daemon-reload
and mount will work.

As soon as I run
systemctl daemon-reload
with the lines uncomented from fstab, I can no longer mount the partitions in theri directories, but I can manually mount them to different places

I.e.

fstab says:
/dev/vg_main/lv_VM /opt/VM ext4 noauto,defaults 0 1

mount /opt/VM ---> success but in reality the partition is not mounted as shown by df or mount
mount /dev/vg_main/lv_VM /opt/VM ---> success but in reality the partition is not mounted as shown by df or mount
mount /dev/vg_main/lv_VM /some/other/path ---> success and partition is mounted

comment out fstab and run systemctl
#/dev/vg_main/lv_VM /opt/VM ext4 noauto,defaults 0 1
systemctl daemon-reload
mount /dev/vg_main/lv_VM /opt/VM ---> success but in reality the partition is not mounted as shown by df or mount
mount /dev/vg_main/lv_VM /some/other/path ---> success and partition is mounted

uncomment fstab without reloading changes
/dev/vg_main/lv_VM /opt/VM ext4 noauto,defaults 0 1
mount /opt/VM ---> success and partition is mounted
mount /dev/vg_main/lv_VM /opt/VM ---> success and partition is mounted
mount /dev/vg_main/lv_VM /some/other/path ---> success and partition is mounted

reload systemct changes and we are back to square one


What might be happening here?

I suppose systemd left something unfinished from previous shutdown and does not know how to recover but I have no clue what. I have googled without success.

Any suggestion is appreciated.

EDIT:

Actually, as long as systemd has read the uncomented fstab, I cannot mount anything into those directories.

[Keruskerfuerst]

Any information about your system?

[Roman_Gruber]

maybe worth to write your own initramfs with utilizes busybox and custom script for your "special" setup.
--

I just was curious if mounting /opt as separate partition was allowed or even considered. Yes it is.

but seeing systemd screwing up standard principles, whatever(yes this is a rant)

http://www.pathname.com/fhs/pub/fhs-2.3.html