this post was submitted on 30 Dec 2023
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"wipefs -a" instantly removes filesystem signatures. It's fast, doesn't actually delete data but is just as effective in most cases where you're not worried about someone trying to recover it. Much faster than rm on /. As far as the OS is concerned the drive is then empty.
"nvme format" is also fast.
youngsters and their tools... we just used to dd some /dev/zero onto the block device and ^C out of it after a second or two... :D