bootlogd(8) on Linux
The text 29a5e086c0b6, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
record boot messages
Flags it lists
-
-c -
-d -
-l -
-p -
-r -
-s -
-v