Join Log in
Score:1
Athena Wisdom avatar Ubuntu

Where to find logs for "Low Disk Space"

gr flag
Athena Wisdom

After seeing the window popping up that shows

Low disk space | The volume "Filesystem root" has only X MB disk space remaining.

Where can we find the log file that logs this low disk space warning?

If it is not logged by default, how can we log it so that we can record down some details like the timestamp of this event?

Output of cat /var/log/syslog | grep -i disk:

Sep  5 09:10:11 foo systemd[1]: dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device: Job dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device/start timed out.
Sep  5 09:10:11 foo systemd[1]: Timed out waiting for device dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device.
Sep  5 09:10:11 foo systemd[1]: Dependency failed for File System Check on /dev/disk/by-uuid/4d64b496-3e08-497f-9e51-40db25c7710b.
Sep  5 09:10:11 foo systemd[1]: systemd-fsck@dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.service: Job systemd-fsck@dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.service/start failed with result 'dependency'.
Sep  5 09:10:11 foo systemd[1]: dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device: Job dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device/start failed with result 'timeout'.
Sep  5 09:34:55 foo systemd[1]: dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device: Job dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device/start timed out.
Sep  5 09:34:55 foo systemd[1]: Timed out waiting for device dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device.
Sep  5 09:34:55 foo systemd[1]: Dependency failed for File System Check on /dev/disk/by-uuid/4d64b496-3e08-497f-9e51-40db25c7710b.
Sep  5 09:34:55 foo systemd[1]: systemd-fsck@dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.service: Job systemd-fsck@dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.service/start failed with result 'dependency'.
Sep  5 09:34:55 foo systemd[1]: dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device: Job dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device/start failed with result 'timeout'.
Sep  5 10:03:12 foo systemd[1]: dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device: Job dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device/start timed out.
Sep  5 10:03:12 foo systemd[1]: Timed out waiting for device dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device.
Sep  5 10:03:12 foo systemd[1]: Dependency failed for File System Check on /dev/disk/by-uuid/4d64b496-3e08-497f-9e51-40db25c7710b.
Sep  5 10:03:12 foo systemd[1]: systemd-fsck@dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.service: Job systemd-fsck@dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.service/start failed with result 'dependency'.
Sep  5 10:03:12 foo systemd[1]: dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device: Job dev-disk-by\x2duuid-4d64b496\x2d3e08\x2d497f\x2d9e51\x2d40db25c7710b.device/start failed with result 'timeout'.
160
1 + 10
log
in flag
matigo
Is the goal just to monitor a computer's available storage space over time?
1
Reply
darth_epoxy avatar
nl flag
darth_epoxy
Can you edit our question and post the result of `cat /var/log/syslog | grep -i disk` please?
0
Reply
N0rbert avatar
zw flag
N0rbert
What is your Ubuntu version and desktop environment?
0
Reply
Athena Wisdom avatar
gr flag
Athena Wisdom
@matigo Yes, and the disk space available fluctuates wildly so I am trying to get an approximate timestamp of when it goes really low.
0
Reply
Athena Wisdom avatar
gr flag
Athena Wisdom
@N0rbert 14.04, 16.04, both using Mate desktop
0
Reply
Athena Wisdom avatar
gr flag
Athena Wisdom
@darth_epoxy Updated with the output you requested. The other `syslog*` files contains more of the same
0
Reply
N0rbert avatar
zw flag
N0rbert
14.04 EOL, 16.04 EOL. What is your current system? Why do you show Unity on screenshot?
0
Reply
Athena Wisdom avatar
gr flag
Athena Wisdom
@N0rbert Ugh I got confused with another system, Mate is the correct desktop environment. I'm stuck on 14.04 and 16.04 for these machines due to a software being used that requires them
0
Reply
N0rbert avatar
zw flag
N0rbert
See my below answer. Just tested on 16.04 LTS MATE VM - log monitoring shows that this low-space warning is not logged. .
0
Reply
Tilman avatar
cn flag
Tilman
You may want to set up some sort of disk space monitoring that works independently of your desktop environment. Something as simple as a cronjob doing `df -k / | tail -n 1 | logger` every hour or even every minute may be enough.
0
Reply
Score:2
N0rbert avatar Ubuntu
zw flag
N0rbert

This dialog is generated by desktop settings daemons. Depending on the flavor the list includes:

  • cinnamon-settings-daemon
  • gnome-settings-daemon
  • mate-settings-daemon (your case, based on comments)
  • ukui-settings-daemon

For MATE log monitoring shows that this low-space warning is not logged. You can check space distribution using MATE Disk Usage Analyzer (mate-disk-usage-analyzer) or via CLI - using ncdu. Then you can move/remove huge files in your home directory.

Cleaning old kernels, kernel headers and package cache may be useful - try commands below:

sudo apt-get clean
sudo apt-get autoremove --purge
0 + 0
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.