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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Can someone explain this command for me? (lemmy.ml)

submitted 2 months ago by [email protected] to c/[email protected]

13 comments fedilink hide all child comments

Today I just learned that systemctl --force --force reboot is a command. We had a computer we remotely connected to which got permission errors and bus errors when we tried to reboot it normally. For some reason the mentioned command did actually manage to shutdown the computer bit did not manage to reboot it correctly.

I wonder what the double --force flag actually accomplishes and what possibly could hinder a regular reboot in this scenario.

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[–] [email protected] 90 points 2 months ago (2 children)

As per systemctl(1) manual:

If --force is specified twice, the operation is immediately executed without terminating any processes or unmounting any file systems. This may result in data loss. Note that when --force is specified twice the halt operation is executed by systemctl itself, and the system manager is not contacted. This means the command should succeed even when the system manager has crashed.

[–] [email protected] 32 points 2 months ago (1 children)

Ah, the --no-preserve-root flag equivalent for a reboot 😄

[–] [email protected] 2 points 2 months ago

Good old --no-preserve-root 😅

[–] [email protected] 9 points 2 months ago

Sounds like the equivalent of Alt+SysRq+B.