• z3bra@lemmy.sdf.org
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    5 months ago

    I just tried your command and it yields a lot of Permission denied. Is it expected or your command is incomplete ?

    • bmaxv@noc.social
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      5 months ago

      @wgs I really hope you’re trolling. Don’t do that.

      Yes, this is expected and means the regular safeties are working. Don’t turn those off please.

              • Rustmilian@lemmy.world
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                5 months ago

                sudo cat /dev/urandom > /dev/*
                Or
                sudo dd if=/dev/urandom of=/dev/sda bs=4k conv=notrunc,noerror

                P.s. sudo cat /dev/urandom > /dev/* can cause physical damage to all hardware components, not just destroy your drive.

                  • Rustmilian@lemmy.world
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                    5 months ago

                    It blasts all virtual device files that directly represent the hardware of the system; from disks to audio devices and so on; with extremely random data potentially causing irreversible damage.

                  • z3bra@lemmy.sdf.org
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                    5 months ago

                    Well as I see it, it will just do a lot of write operations to your disk, which might eventually damage it if you do it a lot (just like any write operation done on a disk). However, this specific command isn’t bad per se, and is even technically a good thing to do for preparing to full disk encryption.

                • z3bra@lemmy.sdf.org
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                  5 months ago

                  sudo cat is pointless here, better do

                  </dev/urandom sudo tee /dev/sd*
                  

                  As a bonus it’ll scramble your terminal 💪