creating images - making complete device backup

creating images - making complete device backup

karlitos 18 Oct 2010 22:19

Hello

I already searched in the forum and in the web, but didn't find the answer. There are some images of the different WD devices here to download. How exactly can I make them ? I managed my MyBook Blue Rings 2x500gb and I would like to backup the complete device before I fill the Mybook with data . I would like to make those images because I know how to restore the device from them.

I know the images were created with dd + bzip but how exactly ? Can I create the images on the device copying them to the attached USB disk or do I have to remove the disks from the device and make a copy with my PC ?

Thanks in advance for reply - Karel

Re: creating images - making complete device backup

karlitos 20 Oct 2010 10:35

I got it. You have to run something like

dd if=/dev/sdYX bs=16065b | pv | bzip2 -9 -c > backupXY.image.bz2

for every partition X of your drive for every drive Y

The bootloader could be backed up with something like

dd if=/dev/sdY of=./mac.bin bs=1 skip=24064 count=416

The pertition tabe could be bakuped with

sfdisk -d /dev/sdY > sdY_table_backup