Changeing timer does not work

[spacemanspiff2007]

I tried changing the sync interval to weekly following the description:

sudo systemctl edit log2ram-daily.timer

### Editing /etc/systemd/system/log2ram-daily.timer.d/override.conf
### Anything between here and the comment below will become the new contents of the file

[Unit]
Description=Daily Log2Ram writing activities

[Timer]
OnCalendar=Sun *-*-* 3:55:00
Persistent=true

[Install]
WantedBy=timers.target

### Lines below this comment will be discarded

### /etc/systemd/system/log2ram-daily.timer
# [Unit]
# Description=Daily Log2Ram writing activities
# 
# [Timer]
# OnCalendar=*-*-* 23:55:00
# Persistent=true
# 
# [Install]
# WantedBy=timers.target

systemctl list-timers

Fri 2023-10-20 23:55:00 CEST 18h left       Fri 2023-10-20 05:35:03 CEST 15min ago         log2ram-daily.timer          log2ram-daily.service

Somehow the timer does not get picked up. What am I doing wrong?

[peterpepo]

Please add OnCalendar= above your OnCalendar=Sun *-*-* 3:55:00 as instructed in README - https://github.com/azlux/log2ram#refresh-time.

As explained here, https://bbs.archlinux.org/viewtopic.php?pid=1642051#p1642051, values in override are "summed" with values in original timer file, thus the OnCalendar must be cleared first.

Timers are cumulative, so in the override you need to reset the existing timers otherwise your OnCalendar setting gets added to the existing one.

For the very same reason, you can remove [Unit] and [Install] sections altogether from your override file. Leave just the [Timer] there.

I have tested this on my machine

[Timer]
OnCalendar=
OnCalendar=Sun *-*-* 3:55:00

=>

pi@raspberrypi:~ $ sudo systemctl list-timers --all
NEXT                         LEFT          LAST                         PASSED       UNIT                         ACTIVATES
Sun 2023-10-29 03:55:00 CET  3 days left   Tue 2023-10-24 23:55:02 CEST 9h ago       log2ram-daily.timer          log2ram-daily.service

[spacemanspiff2007]

Thank you for your help - it works now as expected