Re: [systemd-devel] Fwd: messing with .mount/.automount units

[Andrei Borzenkov]

30.01.2016 13:44, arnaud gaboury пишет:
>>> My first attempt was to add this line in my /etc/fstab:
>>> ---
>>> UUID=868560c1-ab69-423f-b76d-b8ea5af1b066 /mnt/backup
>>>   ext2
>>> noauto,x-systemd.automount,x-systemd.device-timeout=5,x-systemd.idle-timeout=60
>>>02
>>> ---
>>>
>>> $ ls /run/systemd/generator
>>> .
>>> mnt-backup.automount
>>> mnt-backup.mount
>>> 
>>>
>>> For unknown reasons, the partition did mount at boot and never umount.
>>
>> Do you mean - you boot with USB stick inserted (before system power on)
>> and after boot USB stick is mounted (not automounted)?
> 
> Yes, I boot with the external USB drive plugged. The drive is LVM
> partitioned, and yes, the /mnt/backup is mounted with the above fstab
> Could you show
>> /proc/mounts output?
> 
> systemd-1 /mnt/backup autofs
> rw,relatime,fd=26,pgrp=1,timeout=60,minproto=5,maxproto=5,direct 0 0
> .
>>

So you configured directory for automount and systemd did automount. I
do not understand what you complain about here.

Your USB stick is *not* mounted.


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Re: [systemd-devel] Fwd: messing with .mount/.automount units

[arnaud gaboury]

On Sat, Jan 30, 2016, 5:28 PM Andrei Borzenkov  wrote:

> 30.01.2016 13:44, arnaud gaboury пишет:
> >>> My first attempt was to add this line in my /etc/fstab:
> >>> ---
> >>> UUID=868560c1-ab69-423f-b76d-b8ea5af1b066 /mnt/backup
> >>>   ext2
> noauto,x-systemd.automount,x-systemd.device-timeout=5,x-systemd.idle-timeout=60
> >>>02
> >>> ---
> >>>
> >>> $ ls /run/systemd/generator
> >>> .
> >>> mnt-backup.automount
> >>> mnt-backup.mount
> >>> 
> >>>
> >>> For unknown reasons, the partition did mount at boot and never umount.
> >>
> >> Do you mean - you boot with USB stick inserted (before system power on)
> >> and after boot USB stick is mounted (not automounted)?
> >
> > Yes, I boot with the external USB drive plugged. The drive is LVM
> > partitioned, and yes, the /mnt/backup is mounted with the above fstab
> > Could you show
> >> /proc/mounts output?
> > 
> > systemd-1 /mnt/backup autofs
> > rw,relatime,fd=26,pgrp=1,timeout=60,minproto=5,maxproto=5,direct 0 0
> > .
> >>
>
> So you configured directory for automount and systemd did automount. I
> do not understand what you complain about here.
>

I was just looking for a solution using only fstab, no additional
.mount/.automount files in /etc/systemd/system, as it is was is
recommended. Nothing else.

>
> Your USB stick is *not* mounted.
>
>
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Re: [systemd-devel] Fwd: messing with .mount/.automount units

[arnaud gaboury]

On Sat, Jan 30, 2016 at 8:11 AM, Andrei Borzenkov  wrote:
> 29.01.2016 23:07, arnaud gaboury пишет:
>> BUMP.
>>
>> I run once a week a simple backup with rsync. For that purpose, I
>> wrote a service file (rsync) and a timer unit. They both work with no
>> issues.
>>
>>  /etc/systemd/system/backup-external.service
>> 
>> [Unit]
>> Description=Backup system to external drive
>> Requires=mnt-backup.mount
>
> Why you need it if you use automount anyway? /mnt/backup should be
> mounted on access. As is, I am not sure what effect it has.
>
>> After=mnt-backup.mount
>>
>> [Service]
>> Type=oneshot
>> ExecStart=/usr/bin/rsync -av --delete --exclude-from
>> /etc/conf.d/exclude-hortensia / /mnt/backup/hortensia
>> ExecStartPost=/usr/bin/umount /mnt/backup
>
> Same. I am not even sure whether it attempts to unmount underlying file
> system or autofs. You need to decicde whether you use automount or
> normal mount.
>
>> -
>>
>> I would like to mount/umount the backup partition only when the
>> service is triggered. Backup partition is on a USB external drive and
>> LVM group.
>> My first attempt was to add this line in my /etc/fstab:
>> ---
>> UUID=868560c1-ab69-423f-b76d-b8ea5af1b066 /mnt/backup
>>   ext2
>> noauto,x-systemd.automount,x-systemd.device-timeout=5,x-systemd.idle-timeout=60
>>02
>> ---
>>
>> $ ls /run/systemd/generator
>> .
>> mnt-backup.automount
>> mnt-backup.mount
>> 
>>
>> For unknown reasons, the partition did mount at boot and never umount.
>
> Do you mean - you boot with USB stick inserted (before system power on)
> and after boot USB stick is mounted (not automounted)?

Yes, I boot with the external USB drive plugged. The drive is LVM
partitioned, and yes, the /mnt/backup is mounted with the above fstab
Could you show
> /proc/mounts output?

systemd-1 /mnt/backup autofs
rw,relatime,fd=26,pgrp=1,timeout=60,minproto=5,maxproto=5,direct 0 0
.
>
>> The only way I found to achieve my goal is:
>> - remove the entry in /etc/fstab
>> - copy the .mount and .automonut files in /etc/systemd/system
>>
>
> Copy from where? Please show these units you use now.

I copied then from /run/systemd/generator.

 % cat /run/systemd/generator/mnt-backup.automount
--
# Automatically generated by systemd-fstab-generator

[Unit]
SourcePath=/etc/fstab
Documentation=man:fstab(5) man:systemd-fstab-generator(8)
Before=local-fs.target
[Automount]
Where=/mnt/backup
TimeoutIdleSec=1min


% cat /run/systemd/generator/mnt-backup.mount
--
# Automatically generated by systemd-fstab-generator

[Unit]
SourcePath=/etc/fstab
Documentation=man:fstab(5) man:systemd-fstab-generator(8)
Requires=systemd-fsck@dev-disk-by\x2duuid-868560c1\x2dab69\x2d423f\x2db76d\x2db8ea5af1b066.service
After=systemd-fsck@dev-disk-by\x2duuid-868560c1\x2dab69\x2d423f\x2db76d\x2db8ea5af1b066.service

[Mount]
What=/dev/disk/by-uuid/868560c1-ab69-423f-b76d-b8ea5af1b066
Where=/mnt/backup
Type=ext2
Options=noauto,x-systemd.automount,x-systemd.idle-timeout=60



>
> And does it unmount in this case after backup is finished?

YES
>
>> I have the expected behavior this way.
>> My question: is this the standard way and advised to do it? Why my
>> ftsab entry did not work?
>>
>
>
> What is your systemd version?
systemd 228-3


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Re: [systemd-devel] Fwd: messing with .mount/.automount units

[Andrei Borzenkov]

30.01.2016 19:40, arnaud gaboury пишет:
> On Sat, Jan 30, 2016, 5:28 PM Andrei Borzenkov  wrote:
> 
>> 30.01.2016 13:44, arnaud gaboury пишет:
> My first attempt was to add this line in my /etc/fstab:
> ---
> UUID=868560c1-ab69-423f-b76d-b8ea5af1b066 /mnt/backup
>   ext2
>> noauto,x-systemd.automount,x-systemd.device-timeout=5,x-systemd.idle-timeout=60
>02
> ---
>
> $ ls /run/systemd/generator
> .
> mnt-backup.automount
> mnt-backup.mount
> 
>
> For unknown reasons, the partition did mount at boot and never umount.

 Do you mean - you boot with USB stick inserted (before system power on)
 and after boot USB stick is mounted (not automounted)?
>>>
>>> Yes, I boot with the external USB drive plugged. The drive is LVM
>>> partitioned, and yes, the /mnt/backup is mounted with the above fstab
>>> Could you show
 /proc/mounts output?
>>> 
>>> systemd-1 /mnt/backup autofs
>>> rw,relatime,fd=26,pgrp=1,timeout=60,minproto=5,maxproto=5,direct 0 0
>>> .

>>
>> So you configured directory for automount and systemd did automount. I
>> do not understand what you complain about here.
>>
> 
> I was just looking for a solution using only fstab, no additional
> .mount/.automount files in /etc/systemd/system, as it is was is
> recommended. Nothing else.

Solution for *what*? Your system behaves absolutely normal. If you
prefer to mount this device manually, remove x-systemd.automount then. I
assumed you knew what this option does when you added it.


> 
>>
>> Your USB stick is *not* mounted.
>>
>>

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Re: [systemd-devel] Fwd: messing with .mount/.automount units

[Andrei Borzenkov]

29.01.2016 23:07, arnaud gaboury пишет:
> BUMP.
> 
> I run once a week a simple backup with rsync. For that purpose, I
> wrote a service file (rsync) and a timer unit. They both work with no
> issues.
> 
>  /etc/systemd/system/backup-external.service
> 
> [Unit]
> Description=Backup system to external drive
> Requires=mnt-backup.mount

Why you need it if you use automount anyway? /mnt/backup should be
mounted on access. As is, I am not sure what effect it has.

> After=mnt-backup.mount
> 
> [Service]
> Type=oneshot
> ExecStart=/usr/bin/rsync -av --delete --exclude-from
> /etc/conf.d/exclude-hortensia / /mnt/backup/hortensia
> ExecStartPost=/usr/bin/umount /mnt/backup

Same. I am not even sure whether it attempts to unmount underlying file
system or autofs. You need to decicde whether you use automount or
normal mount.

> -
> 
> I would like to mount/umount the backup partition only when the
> service is triggered. Backup partition is on a USB external drive and
> LVM group.
> My first attempt was to add this line in my /etc/fstab:
> ---
> UUID=868560c1-ab69-423f-b76d-b8ea5af1b066 /mnt/backup
>   ext2
> noauto,x-systemd.automount,x-systemd.device-timeout=5,x-systemd.idle-timeout=60
>02
> ---
> 
> $ ls /run/systemd/generator
> .
> mnt-backup.automount
> mnt-backup.mount
> 
> 
> For unknown reasons, the partition did mount at boot and never umount.

Do you mean - you boot with USB stick inserted (before system power on)
and after boot USB stick is mounted (not automounted)? Could you show
/proc/mounts output?

> The only way I found to achieve my goal is:
> - remove the entry in /etc/fstab
> - copy the .mount and .automonut files in /etc/systemd/system
> 

Copy from where? Please show these units you use now.

And does it unmount in this case after backup is finished?

> I have the expected behavior this way.
> My question: is this the standard way and advised to do it? Why my
> ftsab entry did not work?
> 


What is your systemd version?
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