On 10/03/2021 20:57, Patrick O'Callaghan wrote:
[Sorry for the long delay, but other stuff intervened.]
I've come back to this now and started experimenting incrementally. As
a first step, I just want to automount/unmount, ignoring the power-
on/off part for now, i.e. the device is already powered on. This is my
/etc/fstab entry:
UUID=6cb66da2-147a-4f3c-a513-36f6164ab581 /raid ext4 rw,noauto,user,x-systemd.automount 0 0
and /etc/systemd/system/raid.automount (copied from your example):
[Unit]
Description=Automount /raid
[Automount]
Where=/raid
TimeoutIdleSec=10
[Install]
WantedBy=multi-user.target
I've rebooted, and the device starts up mounted:
# findmnt /raid
TARGET SOURCE FSTYPE OPTIONS
/raid systemd-1 autofs rw,relatime,fd=52,pgrp=1,timeout=10,minproto=5,maxproto=5,direct,pipe_ino=24910
though I'm not sure why as nothing is accessing it. It also remains mounted, despite the timeout.
Any thoughts?
My first thought is that you're doing things a bit different than what I did.
You have an entry for your disk in the fstab. My understanding is that when an entry is in fstab mount unit
files will be auto generated. I don't have fstab entries for my automounts. I can't say that I know it is wise
to mix the methods.
Using my /aux as the example. When unmounted I see...
[root@meimei ~]# findmnt /aux
TARGET SOURCE FSTYPE OPTIONS
/aux systemd-1 autofs rw,relatime,fd=53,pgrp=1,timeout=60,minproto=5,maxproto=5,direct,pipe_ino=26036
But when mounted
[root@meimei ~]# findmnt /aux
TARGET SOURCE FSTYPE OPTIONS
/aux systemd-1 autofs rw,relatime,fd=53,pgrp=1,timeout=60,minproto=5,maxproto=5,direct,pipe_ino=26036
/aux nas:/volume1/aux nfs4 rw,relatime,vers=4.1,rsize=131072,wsize=131072,namlen=255,soft,proto=tcp6,timeo=600
I think I would first try removing (commenting out) the fstab entry and creating raid.mount file in /etc/systemd/system/
with the contents.
[Unit]
Description=mount raid
[Mount]
What=/dev/disk/by-uuid/6cb66da2-147a-4f3c-a513-36f6164ab581
Where=/raid
Options=rw,user
Type=ext4
[Install]
WantedBy=multi-user.target
At this time I've only used automounts for nfs mounts. I'd try it with local disk if it weren't for the late hour.
Also, due to the late hour, I seem to recall seeing something about working with automounts and external devices
and conflicts arising due to the interference of udev. But I may be mixing things. So, I'd first see if making the
above changes has any effect.
--
People who believe they don't make mistakes have already made one.
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