[CentOS] In A UEFI World, "rm -rf /" Can Brick Your System
Richard Zimmerman
rzimmerman at riverbendhose.com
Mon Feb 1 20:47:40 UTC 2016
>> Excerpt:
>> Running rm -rf / on any UEFI Linux distribution can potentially perma-brick your system.
>
> "And they closed the ticket"? That tuxedo on the cockroach is so elegent!
> Ok, *now* tell me why we shouldn't hate systemd?
> mark
As much as I don't like systemd, it has NOTHING to do with system and everything to a poor admin or newbie blindly following others advice.
My suggestion is to ALWAYS fully qualify *ANY* directory you want to rm -rf, period.
I speak from experience. Years ago had a script that would cd into a directory and then rm - rf * it. Problem started when I accidently deleted said dir and the PREVIOUS dir was /. Needless to say, the server was happily committing suicide before I figured out the problem.
Lessons learned:
1. Fully qualify ANY rm -rf command
2. Make sure you always have good backups, I did!
3. I became really, really good at disaster recovery :)
4. Upper Management WILL get cranky over an event like this!
Just my 2 cents worth...
Richard
---
Richard Zimmerman
Systems / Network Administrator
River Bend Hose Specialty, Inc.
1111 S Main Street
South Bend, IN 46601-3337
(574) 233-1133
(574) 280-7284 Fax
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