I have 2 usb drives one has backtracks a linux distro on it.
Boots up fine when I select boot from usb drive in the bios.
using df to list the device files and mountings
I see /dev/sdc1 as the backtracks usb the other usb drive device file is /dev/sdh1
dd if=/dev/sdc1 of=/dev/sdh1
when it finished I tried booting with the other usb drive which should be an exact bit for bit copy of the other bootable one.
But it doesn't boot? Why?
I have tried umount the devices before issueing dd command as well . Still doesn't work?
Do I need an special switches for the dd command like a bs , notrunc , or noerrors ?
Also I did dd if=/dev/sdc1 count=1 | md5sum
and dd if=/dev/sdh1 | count=1 | md5sum
This gave me the same md5 hash for the begining of both drives
So how can it not be booting