---
keywords:
  - IT
---
# systemd cheat sheet
## systemd- bootdelay analyzing
- Short summarize over boot duration
	`system-analyze`
- Generate plot for systemd boot process
	`system-analyze plot > boot.svg` 
    
	`firefox boot.svg`
- kernel log with delta in time
	`dmesg --show-delta --color=always | less -R`
- correlate initramfs with kernel messages
	`journalctl -b -o short-monotonic`
- sort systemd load times
	`systemd-analyze blame`
- select specific initramfs service
	`journalctl -b -o short-monotonic -u systemd-udev-settle.service`
- analyse with systemd-bootchart
	`init=/lib/systemd/systemd-bootchart`
- the chart file is located under `/run/log/bootchart`

## check offline journald log
`journalctl --root=/run/media/user/partitionname/`
journalctl needs the actual root of the root partition and not the journal folder.