• superkret@feddit.org
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    6 months ago

    WARNING:

    Don’t ever do this on a current bare metal system!
    Even if you have everything backed up, plan on re-installing anyway, and just want to see what happens.

    On a modern EFI system, recursively deleting everything (including the EFI path) has a chance of permanently hard-bricking your computer!

    • A_Very_Big_Fan@lemmy.world
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      6 months ago

      Why would it be a permanent brick? Shouldn’t a flashdrive and access to BIOS be enough to get your PC working again?

      • superkret@feddit.org
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        6 months ago

        In a properly implemented EFI, this should be possible. But there have been cases with improperly implemented EFI in some laptops/motherboards where the computer won’t POST after /sys/firmware/efi/efivars/ was nuked. In that case, accessing BIOS or booting from a flashdrive isn’t possible anymore.

        • Acters@lemmy.world
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          6 months ago

          I have a little flash chip reader and backed up my bios and can flash it on the laptop. Even modified it to unlock the advanced menus Lol

        • Tux@lemmy.worldOP
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          6 months ago

          Bro, BIOS is located on motherboard and EFI variables only needed to boot an OS.

          Just install bootloader and OS in drive

          • superkret@feddit.org
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            6 months ago

            Bro, several people bricked their pc that way. I’m no expert, just throwing out a warning not to do dumb shit.

    • Lucy :3@feddit.org
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      6 months ago

      But Windows 95/XP does not run on EFI systems, so they aren’t used in the BRD. We’re save!