On 29 Jan 2022, Wols Lists told this: > I believe there is also a way of injecting a hardware error onto a > drive. Unless you can take a backup of the backup :-) I wouldn't > recommend it at the moment, but there's some ATA command or whatever > that tells the drive to flag a sector as bad, and return a read error > until it's over-written. See hdparm --make-bad-sector. The manpage says "EXCEPTIONALLY DANGEROUS. DO NOT USE THIS OPTION!!". It is not lying. :) (This is also --write-sector, which is merely VERY DANGEROUS, but can be used to force rewrites of bad sectors. Make sure you get the sector number right! Needless to say, if you don't, it's too late, and there's no real way to test in advance...)
