best free hard drive cloning software with bad physically blocks

About 4 blocks at a time together in groups where detected bad. NOTE: My bad blocks where pretty much close to each other. I hope this will be usefull for others trying to backup faulty drives.

No corruption at all, it just does not copy the faulty blocks and fills it with empty NULs.Īfter the copy with DD was done, I just replace that bad file reverting Filezilla from a past backup and everything worked OK. What the ‘conv=noerror,sync’ does, is to pad out bad reads with NULs, while ‘iflag=fullblock’ caters for short reads, but keeps in sync your data up to the end. The amount of times made a noise, was because it found another bad block and tells you about on display error msg. It does copy block by block, and thru all my bad blocks made the same noise. Each bad block encountered sound like a banging on the faulty drive. dd if=/dev/sdb of=/dev/sda bs=512 conv=noerror,sync iflag=fullblock

So I then use the parameters as explained on the page search the 'For failing disks' part. My block size is 512 so I use that default number to run DDģrd each block is 512 size, so what I done is to set bs=512Įach time I runned DD regularly as I always do, my data, after the errors, will come out corrupted. If no bad blocks are found, then your drive blocks are OK and need to figure something else out. To duplicate the disk, then I had to find the bad blocks on the disk using this procedure:ġst find out the problem disk identifying the HD info using fdisk -lĢnd if lets say your disk is /dev/sdb then you need to run the commandīadblocks -v /dev/sdb it will list all you bad blocks on the drive. Luckly I have a previous backup of same file.

I notice that one big file was not copying correctly (Stopping in the middle and restarting the transfer). The first thing I have done is backup files using regular Filezilla to backup all good data. I was having problems duplicating (backing up a disk) with about 30 bad blocks. I have done this today, I hope it works for you.

Best free hard drive cloning software with bad physically blocks