Burn bootable iso image to USB stick using dd: Won't boot (despite USB first in boot sequence)
- by Nicolas Raoul
I have installed Ubuntu on a Lenovo Thinkpad R500 2732, and I must update the BIOS.
On the Lenovo website, I am offered this:
BIOS Update Bootable CD for Windows 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP - ThinkPad R500
I guess a bootable CD that would do a BIOS update is indeed what I need. (still wondering why it says "Windows" though... if it is bootable should not it be OS-agnostic?)
Not wanting to waste a CD, I copied the image to my USB stick:
sudo dd if=/home/nico/7yuj40uc.iso of=/dev/sdb1 bs=1M
And rebooted, after making sure USB is first in the boot sequence.
PROBLEM: It does not boot. Did I forget one step?
Details about the iso image (readme):
ls -lh 7yuj40uc.iso
25M
file 7yuj40uc.iso
/home/nico/7yuj40uc.iso: # ISO 9660 CD-ROM filesystem data '7YUJ40US ' (bootable)
(Scroll to the right: it says "bootable")
UNetbootin does not work because it is not a Linux image.
Some people on the Internet advise to copy the content of the ISO and do other steps. This ISO has zero ISO content so it would not work. If I mount the ISO, I can see it contains zero files.
