Unable to clone drive with many bad sectors

wjgollatz

Senior member
Oct 1, 2004
372
0
0
I have a hard drive with many bad sectors. I have no idea how long they have been bad. I do not do while backups - I just backup my important data which is usually a matter of just copying to backup drives, and using Acronis backup routines to get special data like Email, Palm, and Browser data from locations outside of "My Documents." I got lazy and just started do this, - it was just as fast.

Now - I see I have ALOT of bad sectors - but in data I don't use. Miscellaneous files that ended up on the drive, and places in different partitions, and especially in the boot partition, but it does not interfere with Windows, or any of the software I use, Open Office, MS Office, Gnumeric, Quickbooks, Serif, browsers... Never noticed it until I tried to copy a file, where, it would restart my PC. Acronis can not backup the partitions with the bad sectors (or at least the C partition. Check Disk from Windows boot find nothing wrong, HD Tune checks and restarts PC.

Now, I have a new hd I was planning to clone to leisurely get miscellaneous data off of. However, Acronis True Image (using the Acronis boot cd) displays sector errors (1100 consecutive bad sectors in the C partition before I told Acronic to ignore all errors instead of each one individually), but Acronic stops during the C partition part of the clone, says the operation was successful with errors, and end the operations. It never even got to the other partitions, and there was no data that ended up on the new drive.

So how can I clone a drive with bad sectors. Right now - it operates fine. If I cloned it it would operate fine for all my daily and frequent tasks, and I wanted to use that while I rebuilt a new computer with Win 7. I could just skip the clone, and just install windows and what I need on the new drive, but shouldn't there be a way to clone whatever can be read?
 
Last edited:

jwilliams4200

Senior member
Apr 10, 2009
532
0
0
The best free tool for the job is ddrescue. It does a straight sector-by-sector copy, but since it does not overwrite the destination when the source has bad sectors, you can run it multiple times to do the same clone, sometimes picking up more sectors on subsequent runs. It also has a good algorithm for skipping over bad parts of the source drive, so it can quickly copy the good parts to the destination. Then you can go back and spend more time trying to copy the bad parts.

ddrescue is a linux tool, but you can easily run it from a USB flash drive. For example, SystemRescueCD includes ddrescue.

http://www.sysresccd.org/SystemRescueCd_Homepage
 

VirtualLarry

No Lifer
Aug 25, 2001
56,580
10,217
126
Norton Ghost 2003 for DOS, build 793, using the "-fro" switch, will clone and ignore bad sectors.