Systemd display services as graphic

Systemd have loots of tools to analyses boot performance on your system. If you want this to display graphical then use this command.

We want to display the bluetooth stack.

systemd-analyze dot 'bluetooth*' | dot -Tsvg > blue.svg
Systemd bluetooth overview

If you want to see the complete boot sequence from systemd use this command.

systemd-analyze plot > complete_systemd_boot.svg

Debian upgrade from 7 to 8 syslog-ng.service start request repeated too quickly, refusing to start

You have upgraded from Debian 7 to Debian 8 and you are usign syslog-ng.

You will be in a little bit in trouble with syslog-ng

You can check this with systemctl status syslog-ng.service

syslog-ng.service start request repeated too quickly, refusing to start

syslog-ng service is not starting.

Check your local config file search after ” unix-stream(“/dev/log”);”

People with custom syslog-ng configurations will most likely face upgrade problems due to the unix socket type mismatch between systemd and syslog-ng old configuration file:

  • systemd creates /dev/log as unix-dgram
  • syslog-ng < 3.2.5 expected /dev/log to be unix-stream (configuration file)

If you use ‘unix-stream (“/dev/log”)’ in one of your log messages sources, you will need to manually change it to ‘unix-dgram (“/dev/log”)’.

Found here