Magic SysRq – REISUB
Binary Talks | (0)
Ever encoutered a frozen X-Server without the possibility to switch to another console or a rare, but nasty kernel panic? Probably and I guess the majority of the people hit the power button in those cases risking data loss.
This is not necessary. There are other ways to restart a frozen Linux system!
The kernel has a feature called "Magic System Request Keys" - if it was compiled with the CONFIG_MAGIC_SYSRQ option though. It is available via ALT+PRINT on most systems and provides various low level commands to safely turn of or reboot your computer in case of a failure.
If you want ...