On Tue, 2007-08-14 at 22:18 -0700, Globe Trotter wrote: > Hmmm.... > > > > > Assuming the FLASH is /dev/sdb and the ISO is mounted at /media/cdrom, > > > then: > > > > > > dd if=/media/cdrom/images/diskboot.img of=/dev/sdb bs=512 > > > > > > Note the "of=/dev/sdb". You MUST write to the raw device (/dev/sdb), > > > NOT to the first partition (/dev/sdb1). > > > > > > > > > > > > Hi Rick, > > > > > > Thanks very much for the detailed explanation. I have been using Linux and > > hence the dd command. I have done as you suggested here. But, I now get a > > boot error, which indicates that it is recognized as a boot device, but there > > is clearly an error. > > > > > > So this is what I am doing: Pop the USB flash drive in. Look at nautilus > > and note that it would get mounted on /dev/sdb1 (except I have not mounted > > it). So, then I use the command above, and yank it out. Is this the right > > thing to do? > > > > If you see it in Nautilus, it's being mounted. > > But I don't see it as mounted in nautilus. Just that it is there. Indeed, I > make sure it is not mounted. > > You need to close the > > Nautilus window first, then right click on the icon in your desktop for > > the FLASH device and "Unmount volume" (or run "umount /dev/sdb1" in a > > terminal as root). Do NOT unplug the FLASH device or it'll mount again. > > > > Now, with the device unmounted, do the "dd" command, but specify > > "of=/dev/sdb", NOT "of=/dev/sdb1" in the "dd" command. > > > > I have done exactly the same thing. Just to clarify the following is the file I > am copying: > > wget -c > http://mirror.anl.gov/pub/fedora/linux/releases/7/Fedora/x86_64/os/images/diskboot.img > > And then I use the dd command: > > dd if=/media/dvd/images/diskboot.img of=/dev/sdb bs=512 > > but to no avail. Is it possible that I am making a mess somewhere? Is it that > bs has to be something else? > > Note that I do potentially get a bootable USB since it says boot error, rather > than OS not found. Oh! Then you're burning the FLASH correctly. Are you sure this is a 64-bit system? You've downloaded the 64-bit version of the image and it won't boot on a 32-bit system. Try it again, but use http://mirror.anl.gov/pub/fedora/linux/releases/7/Fedora/i386/os/images/diskboot.img and try it. ---------------------------------------------------------------------- - Rick Stevens, Principal Engineer rstevens@xxxxxxxxxxxx - - CDN Systems, Internap, Inc. http://www.internap.com - - - - 500: Internal Fortune Cookie Error - ----------------------------------------------------------------------
