I like badblocks in destructive mode. It can also do multiple rounds of overwriting. It is also a good tool to burn in a new hdd or test a used one. just check smartctl bad sector count, run it, check again if it increased.

Sounds great! I’ll have a look once the user infrastructure is in place.

This article is far too hypey. One dude has started this initiative and needs people to work on his concept to get it off the ground. I’m not opposed to a red-hat free immutable system, but this one is so far from maturity this article is selling a first drawing like an almost finished product. Remind me in two years how this went.