Not answering your question, but my preferred method of scrubbing a drive is to either use DBAN (dban.org) or just write /dev/urandom to the block device ( dd if=/dev/urandom of=/dev/sda ). This writes random garbage over the entire drive including partition tables and all data. The data MIGHT me recoverable if someone wanted to spend a lot of money to do so, but for all reasonable purposes it is wiped. Using DBAN will be more secure, but take a lot longer. Either method may take a day or so to complete, depending on the size and speed of the drive.
Jason On Fri, Apr 30, 2021 at 3:10 PM Rich Shepard <[email protected]> wrote: > Prior to taking an old Sony Vaio laptop for recycling I wanted to scrub the > hard drive. > > First I used cfdisk and deleted each of the three partitions, wrote the > changes, then quit. For some reason this didn't work. Tried again, same > result. I'd like to understand why. > > What did work was running 'rm -rf --no-preserve-root /'. > > Rich > _______________________________________________ > PLUG: https://pdxlinux.org > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ PLUG: https://pdxlinux.org PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
