What do you mean? After formatting?
Try:
WARNING: the -f option allows usage on a mounted drive, so be absolutely sure you select the correct drive.
You can remove the f
option, if you manage to dismount the target drive.
sudo badblocks -svf /dev/sdd -o badblocks1.log
You also may add the w
option, since you don’t care to keep the files on the drive. Adding the w
option usually overwrites all files on the target drive.