…otherwise known as RSEIUB… a magic key combination for restoring a frozen Linux box.
Instead of hitting the [RESET] button and executing a hard reboot (ouch!) of your knackered system… try this (yesss…) alternative:
While holding down the Alt and SysRq (Print Screen) keys… press in sequence…
-
- the r key (switches the keyboard from raw mode… the mode used by programs such as X11 and svgalib, to XLATE mode)
- the s key (attempts to sync all mounted filesystems)
- the e key (sends the SIGTERM signal to all processes except init)
- the i key (sends the SIGKILL signal to all processes except init)
- the u key (attempts to remount all mounted filesystems in read-only mode)
- the b key (immediately reboots the system… without unmounting partitions or syncing)
I stuck this on a post-it next to my monitor… Now I just have to wait (…and wait.. and wait… it is Linux, after all) for the system to lockup solid…
Link to further info on Wikipedia
(snagged this tip via FOSSwire)
