[systemd-devel] Mounting a partition at the *right* time <2nd attempt>

[Rainer Dorsch]

[sorry for the double post, my previous post seems to be truncated]

Hi, 
I am facing an issue with a .mount unit file. The task is simple: mount a partition at 
the 
**right** time. 
The system is OpenElec 6.0, which is based on CoreOS. /etc/fstab is on a squashfs, 
i.e. 
it cannot be easily modified and is empty: 
OpenELEC:~/.config/system.d # cat /etc/fstab
OpenELEC:~/.config/system.d #  

I would like to mount /storage/.kodi/.local/storage/sdcard after /storage is 
mounted and before systemd-tmpfiles-setup.service starts executing.

I created this .mount unit file: 
OpenELEC:~/.config/system.d # cat storage-.kodi-.local-storage-sdcard.mount 
[Unit]
Description=sdcard mount script 
#Requires=storage.mount
#After=storage.mount
ConditionPathExists=/storage/.kodi/.local/storage/sdcard 
Conflicts=umount.target
Before=umount.target systemd-tmpfiles-setup.service 
[Mount]
What=/dev/mmcblk0p1
Where=/storage/.kodi/.local/storage/sdcard
Options=
Type=ext4 
[Install]
WantedBy=local-fs.target 
OpenELEC:~/.config/system.d #  

When booting, I get 
A start job is running for dev-mmcblk0p1.device (xys / 1min 30s) 

The device is mounted after boot though: 
OpenELEC:~ # mount|grep mmcblk0p1
/dev/mmcblk0p1 on /var/media/mmcblk0p1-mmc-USD_0xc840a5b2-p type ext4 
(rw,nosuid,nodev,noexec,noatime,data=ordered)
/dev/mmcblk0p1 on /storage/.kodi/.local/storage/sdcard type ext4 
(rw,relatime,data=ordered)
OpenELEC:~ #  


There is one failed unit: 
OpenELEC:~ # systemctl --failed --no-pager
  UNIT                           LOAD   ACTIVE SUB    DESCRIPTION
● systemd-tmpfiles-setup.service loaded failed failed Create Volatile Files and 
Directories 
LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type. 
1 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.
OpenELEC:~ #  
OpenELEC:~ # systemctl status systemd-tmpfiles-setup.service
● systemd-tmpfiles-setup.service - Create Volatile Files and Directories
   Loaded: loaded (/usr/lib/systemd/system/systemd-tmpfiles-setup.service; static; 
vendor preset: enabled)
   Active: failed (Result: exit-code) since Mon 2016-01-04 12:16:44 CET; 1min 50s ago
     Docs: man:tmpfiles.d(5)
           man:systemd-tmpfiles(8)
  Process: 1731 ExecStart=/usr/bin/systemd-tmpfiles --create --remove --boot --
exclude-prefix=/dev (code=exited, status=1/FAILURE)
 Main PID: 1731 (code=exited, status=1/FAILURE) 
Jan 04 12:16:44 OpenELEC systemd-tmpfiles[1731]: ACLs are not supported. Ignoring
Jan 04 12:16:44 OpenELEC systemd-tmpfiles[1731]: ACLs are not supported. Ignoring
Jan 04 12:16:44 OpenELEC systemd-tmpfiles[1731]: ACLs are not supported. Ignoring
Jan 04 12:16:44 OpenELEC systemd-tmpfiles[1731]: 
[/usr/lib/tmpfiles.d/z_03_connman.conf:19] Duplicate line for path "/var/cache", 
ignoring.
Jan 04 12:16:44 OpenELEC systemd-tmpfiles[1731]: stat(/storage/pictures) failed: No 
such file or directory
Jan 04 12:16:44 OpenELEC systemd-tmpfiles[1731]: stat(/storage/videos) failed: No 
such file or directory
Jan 04 12:16:44 OpenELEC systemd[1]: systemd-tmpfiles-setup.service: main 
process 
exited, code=exited, status=1/FAILURE
Jan 04 12:16:44 OpenELEC systemd[1]: Failed to start Create Volatile Files and 
Directories.
Jan 04 12:16:44 OpenELEC systemd[1]: Unit systemd-tmpfiles-setup.service entered 
failed state.
Jan 04 12:16:44 OpenELEC systemd[1]: systemd-tmpfiles-setup.service failed.
OpenELEC:~ #  



/storage/pictures and /storage/videos are symlinks to the partition I my unit file 
is supposed to mount: 
OpenELEC:~ # ls -l /storage/pictures
lrwxrwxrwx    1 root     root            36 Dec 28 18:34 /storage/pictures -> 
.kodi/.local/storage/sdcard/pictures
OpenELEC:~ # ls -l /storage/videos
lrwxrwxrwx    1 root     root            34 Dec 28 18:36 /storage/videos -> 
.kodi/.local/storage/sdcard/videos
OpenELEC:~ #  

The dependencies look ok for me (at least I do not see anything circular):

OpenELEC:~ # systemctl list-dependencies --no-pager
default.target
● ├─kodi.service
● ├─service.multimedia.vdr-addon.service
● ├─graphical.target
● │ ├─unbind-console.service
● │ └─multi-user.target
● │   ├─avahi-daemon.service
● │   ├─connman.service
● │   ├─cron.service
● │   ├─dbus.service
● │   ├─eventlircd.service
● │   ├─lcdd.service
● │   ├─nmbd.service
● │   ├─rpcbind.service
● │   ├─smbd.service
● │   ├─sshd.service
● │   ├─systemd-ask-password-wall.path
● │   ├─systemd-logind.service
● │   ├─systemd-user-sessions.service
● │   └─basic.target
● │     ├─amlogic-remotecfg.service
● │     ├─hwdb.service
● │     ├─show-version.service
● │     ├─paths.target
● │     ├─slices.target
● │     │ ├─-.slice
● │     │ └─system.slice
● │     ├─sockets.target
● │     │ ├─dbus.socket
● │     │ ├─systemd-initctl.socket
● │     │ ├─systemd-journald-audit.socket
● │     │ ├─systemd-journald-dev-log.socket
● │     │ ├─systemd-journald.socket
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