System Options 9999 System action on Ctrl-Alt-Delete keystroke ignore reboot poweroff ignore Ignore key sequence reboot Reboot system poweroff Poweroff system (ignore|reboot|poweroff) Must be ignore, reboot, or poweroff Kernel boot parameters Disable all optional CPU mitigations Disable CPU power saving mechanisms also known as C states Dynamic debugging for kernel module Dynamic debugging for Wireguard module System keyboard layout, type ISO2 us uk fr de es fi it jp106 no dk se-latin1 dvorak us United States uk United Kingdom fr France de Germany es Spain fi Finland it Italy jp106 Japan no Norway dk Denmark se-latin1 Sweden dvorak Dvorak (us|uk|fr|de|es|fi|it|jp106|no|dk|se-latin1|dvorak) Invalid keyboard layout us Tune system performance throughput latency throughput Tune for maximum network throughput latency Tune for low network latency (throughput|latency) Global options used for HTTP client #include #include Reboot system on kernel panic Global options used for SSH client #include #include plays sound via system speaker when you can login Enable root partition auto-extention on system boot System time-format 12-hour 24-hour 12-hour 12 hour time format 24-hour 24 hour time format (12-hour|24-hour) 12-hour Disable autosuspend for all USB devices