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On 03/07/13 17:25, Martijn Grooten wrote: > I have an ISO image that I want to mount onto a USB stick. > > So I plug the stick into a Opensuse box, make sure it's unmounted and I run > > dd if=filename.iso of=/dev/sdx bs=1M > > and when it's done and I mount the device again, the device is > recognized and has the right files on it. > > However, if I then boot a machine from that USB, booting fails as the > device is not recognized. (The ISO is bootable.) Moreover, when I plug > the device into a Windows box, it says the device needs to be mounted. > > I've got the very same issue with two different USB sticks, at least > one of which I've used in the past to boot machines from. Both sticks > are a few years old, so it could be a hardware issue, though in that > case I'd have expected for dd to fail. > > Any thoughts? > > Martijn. > > PS the ISO contains VMware ESXi 5.something, in case that matters. > Just use unetbootin to write the ISO out to your stick - bet it works first time. Simply dd'ing an image to a USB stick could be failing in so many ways - it's not recommended usually (although in theory it *should* work, and indeed often will - I've done it many times). What does kpartx tell you about the original ISO structure? Or even fdisk? It may well be relying on a GPT format, non-standard boot loader, partition alignment... A lot of things could be going wrong there. Regards -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq