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| title | aliases | summary | date | lastmod | categories | tags | ||||
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| Systemd: slow reboot and shutdown fixed | /posts/2022-06-27-systemd-slow-reboot-and-shutdown-fixed | I'm not so into systemd systems and ever avoided systemd whenever possible, but nowadays systems without systemd are very rare. So I'm learning my lessons slowly and with some memory protection (e.g. this article). Sorry, this article is not very well formatted... | 2022-06-26T22:41:49+02:00 | 2022-10-26T07:09:35+02:00 |
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I noticed long delays (more than 2 minutes) on reboots and poweroffs recently on my Manjaro laptop.
Fix the slow shutdown/reboot
View the last boot session log in reverse order
$ journalctl -rb -1
and inspect that for abnormalities. Also look at your console when rebooting or shutting down the system, as that may also present some good starting points.
To make things short, here's my solution that I currently work with:
I edited /etc/systemd/system.conf and changed the following values:
# file: "/etc/systemd/system.conf"
[Manager]
[...]
RebootWatchdogSec=1min
ShutdownWatchdogSec=1min
[...]
DefaultTimeoutStopSec=5s
[...]
Have a quick look at the boot time
$ systemd-analyze
and if you are more interested into which module slows down your boot, list them with:
$ systemd-analyze blame
Just out of curiosity I also used:
$ sudo systemctl disable NetworkManager-wait-online.service
→ revert that with:
$ sudo systemctl enable NetworkManager-wait-online.service
Sources
The sources of my research and a more detailed explanation can be found with those links:
Update and Results on my Fedora box
Since I made the switch to Fedora 36 I had to re-do those steps.
With default values I got this result for systemd-analyze
$ systemd-analyze
Startup finished in 7.754s (firmware) + 5.988s (loader) + 1.140s (kernel) + 13.027s (initrd) + 1min 21.493s (userspace) = 1min 49.403s
graphical.target reached after 1min 21.462s in userspace
Without userspace: 27.9090s
And with the changes above I get this
$ systemd-analyze
Startup finished in 10.151s (firmware) + 2.368s (loader) + 1.128s (kernel) + 10.509s (initrd) + 8.480s (userspace) = 32.639s
graphical.target reached after 8.450s in userspace
Without userspace: 24.1560s