Booting .img file

[manuel19]

Hi!

Hi made a Full disk clone using:

dd if=/dev/sda of=/media/hddportable/sda-backup.img

Now i want to know, How to make a DVD that boot sda-backup.img?

The point is that NOW i don't know to make a DVD to boot sda-backup.img when system start with the DVD inside....
Please help

[AlexDudko]

Use the same command to burn the image to a flash drive. Then boot from it.

[manuel19]

I make a Bootable CD using

mkisofs -o <isoimage> -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table <root-of-iso-tree>

Do you mean, do something like this...

mkisofs -o <isoimage> -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table sda-backup.img

?

[AlexDudko]

I meant to use dd command to burn the image to a flash drive and then to boot from it.

[manuel19]

NONO, I mean... Yes I did the hardisk backup using dd ...but
Now i want to know how to burn that image on a DVD to boot the image from the DVD without Any physical Hard drive...

Boot the image from DVD...

[AlexDudko]

Why using DVD's while you can use a USB? You can burn your image to a USB flash drive with this command:

dd if=<file> of=<device> bs=4M; sync

where <file> is your img file and <device> is a USB device, /dev/sdb, for instance.
Then configure bios to boot from usb and use it.

[manuel19]

Because using a CD or DVD, i will never get filesystem errors...

It will be very reliable...
It will boot like a Live CD

[droidhacker]

Originally Posted by manuel19

Because using a CD or DVD, i will never get filesystem errors...

It will be very reliable...
It will boot like a Live CD

You can't do that.
It is not possible.
The boot system that you have copied depends on the disk being WRITABLE. A CD/DVD is READONLY. It won't work unless you perform EXTREMELY invasive changes on the filesystem structure.