Tips & Tricks with the kernel cmdline ===================================== This document summarizes the different boot parameters that can be passed on the Linux kernel command line. Not just limited to Finit. * `debug`, or `--debug` Enable debug mode. The former syntax also enable kernel debug, and the latter only in Finit. Debug messages are printed to the console until a syslog daemon has been started. * `init=/bin/sh` Bypass system default init and tell kernel to start a shell. Note, this shell is very limited and does not support signals and has no job control. Recommend using, and modifying, `rescue` mode instead. * `panic=SEC` By default the kernel does not reboot after a kernel panic. This setting will cause a kernel reboot after SEC seconds. * `quiet` Suppress kernel logging to console, except for warnings and errors. * `rescue` Start Finit rescue mode; no network, no `fsck` of file systems in `/etc/fstab`, no `/etc/rc.local`, no `runparts`. The configuration is read from `/etc/rescue.conf`, can be modified by the operator. * `single`, or `S` Single user mode, runlevel 1, in Finit. Useful to debug problems with the regular runlevel. All services and TTYs in `[1]` will be started, so a `tty [1] @console nologin` configuration presents you with a root console without login. * `splash` Display Finit splash screen with progress at bootstrap and shutdown. For more on kernel boot paramaters, see the man page `bootparam(7)`.