Reboot key combination

From WickyWiki


Shortcut:

  • Right ALT + SysRq + ( R E I S U B )

Helpful to remember:

  • Right ALT + SysRq + ( Reboot Even If System Utterly Broken )

Note: the letters need to be pressed consequently while holding ALT and SysRq down.

Explanation:

Name Key Activity
unRaw R take control of keyboard back from X
tErminate E send SIGTERM to all processes, allowing them to terminate gracefully
kIll I send SIGKILL to all processes, forcing them to terminate immediately
Sync S flush data to disk
Unmount U remount all filesystems read-only
reBoot B