this post was submitted on 04 Jul 2023
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I never understood the reisub part. Just pressing alt+sysrq+b is enough to restart my Debian
That's basically the equivalent of pulling the plug. Works, but it's not as gentle.
R-E-I-S-U-B will:
Ask programs to prepare for shutdown gracefully.
Then, force programs to shutdown.
Then, sync all changes to the disk gracefully.
Then, unmount the file system.
And finally reboot.
Also you can replace "b" with "o" to shutdown.
Whoever put in these commands to not default to true if absent is a lunatic.
Thanks for the info! I have now become REISUB-pilled