Les Mikesell wrote:
I tried dd-ing this to /dev/sdb (the USB stick).
[tim@helen dvd]$ sudo cp images/diskboot.img /tmp [tim@helen dvd]$ cd /tmp [tim@helen tmp]$ sudo dd if=diskboot.img of=/dev/sdb 24576+0 records in 24576+0 records out 12582912 bytes (13 MB) copied, 0.766341 seconds, 16.4 MB/s
But when I re-booted my laptop with the USB stick in (having made sure it was top of the boot order in the Bios) it failed to start.
I re-formatted the USB stick under Windows, and tried dd-ing diskboot.img to /dev/sdb1 but the outcome was the same.
It should go to the raw disk device, not a partition and you shouldn't need to format first.
The reason I re-formatted it was that fdisk said there was no valid partition table after dd-ing bootdisk.img onto /dev/sdb .
I guess you could try grabbing a different copy from a mirror site like: http://centos.cs.wisc.edu/pub/mirrors/linux/centos/5.5/os/i386/images/
I'll try again, now that I'm sure what you mean.
Incidentally, I also tried livecd-iso-to-disk boot.iso /dev/sdb1 but on re-booting there was just a ";" on my laptop screen. (The BIOS was set to use the USB stick, and in fact started fine with CentOS Live USB and Fedora Live USB.)