I am attempting to save some user data of a disk that has failed in a Window 8 computer. I’ve removed the HDD that was unable to be read by the Windows 8 laptop, plugged into my OS X machine which can see the partitions but cannot mount them. (ntfs-3g cannot either).
Say you want to zero-out a failing hard disk. You want to overwrite as much as possible with zeros. What you don’t want is: the process aborts on the first write-error. How to do that?
I am in the process of salvaging data from a 1 TB failing drive (asked about it in Procedure to replace a hard disk?). I have done ddrescue from a system rescue USB with a resulting error size of 557568 B in 191 errors, probably all in /home (I assume what it calls “errors” are not bad sectors, but consecutive sequences of them).
I am learning the value of having good backups.