this post was submitted on 10 Jan 2025
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    Lol, they locked all the posts for the community (infosec.pub)
    submitted 3 days ago by [email protected] to c/linuxmemes
    163 comments fedilink hide all child comments
     

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    [–] umbraroze 13 points 2 days ago (3 children)

    rm -rf / can brick your system

    Well good thing there's basically no legitimate reason to ever even use rm -rf / anyway so GNU version is perfectly within its rights to refuse to do that by default, am I right? If you know what you're doing and want to nuke partitions, that's what cfdisk and mkfs are for, dammit

    [–] [email protected] 11 points 2 days ago (1 children)

    Yeah like so could deleting system32, and there were plenty of memes about that also.

    [–] BluescreenOfDeath 3 points 1 day ago

    'Bricked' in this sense meaning not that you'd just trash your OS and need a reinstall, but that it could actually stop your computer from booting at all. So the system32 analogy doesn't exactly fit.

    It's because some motherboards implement UEFI in a way that allows important variables to be overwritten by I/O processes. Executing sudo rm -rf /* would recursively go into the EFI parameters folder where the kernel mounts EFI variables and attempt to delete things. Some motherboards allowed these delete operations to remove things in the motherboard's firmware it needs to complete POST, thus rendering the motherboard useless.

    But that's a problem with the motherboard, not with Linux or Windows. The same damage can be caused by Windows.

    [–] [email protected] 7 points 2 days ago (1 children)

    rm -rf / won't even run. Only sudo rm -rf / --no-preserve-root will

    [–] [email protected] 3 points 2 days ago

    Really? Let me tr

    [–] [email protected] 5 points 2 days ago

    yeah but what about rm -rf ../../../.../var/lib/../../?