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CD-ROM on Linux using dd command

Posted on Saturday, October 15, 2011 by android apps market for tablests

Case 1: Taking Backup Of The Entire Hard Disk

Connect a hard disk to your machine (say it is /dev/sdb). Now use the dd command to copy your hard disk data to new hard disk.

# Dd If=/Dev/Sda Of=/Dev/Sdb

If there occur any error then the above code will fail. To ignore errors you may use the command given below.

# Dd If=/Dev/Sda Of=/Dev/Sdb Conv=Noerror,Sync

sync option is used for synchronized Input/Output.

Case 2: Create Image Of The Hard Disk

# Dd If=/Dev/Sda Of=~/Sdadisk.Img

Check out this article on How To View .Img File.

Case 3: Restore Using Hard Disk Image File

# Dd If=Sdadisk.Img Of=/Dev/Sdb

Case 4: Taking Backup Of A Partition

# Dd If=/Dev/Sda1 Of=~/Partition.Img

Case 5: Backing Up CDROM

# Dd If=/Dev/Cdrom Of=Backup.Iso Bs=2048

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