DD to backup failing HDD
HDA1 is going to die, SMART says its well beyond dead, and I can tell the read/write times have gone up drastically.
I know I can use dd to copy it from a live CD.
1.) If I dd it to something.img, is there a way for me to "work" on the backup copy? Basically, I need to backup ASAP, but won't have a replacement drive for a while, so I'll need to be able to put the changes into the backup.
2.) When it comes time to restore, if I dd it to a larger drive, is there a way to take advantage of all the extra space? I assume I can dd it over and the MBR & Partition Table will go with, so I can use something like gparted to grow the partition to the drive size?
Or is there a better way to make a backup?