genyrosk

REISUB

If a Linux machine locks up or freezes completely, use REISUB to restart it more gently than pushing the Power Button.

Hold down Alt and the SysReq (Print Screen) keys, and then type R E I S U B, with 2-3 second delays between the key presses to give the commands a better chance to complete.

• R: Switch the keyboard from raw mode to XLATE mode
• E: Send the SIGTERM signal to all processes except init
• I: Send the SIGKILL signal to all processes except init
• S: Sync all mounted filesystems