Pungi uses isohybrid (from the syslinux package) down in the bowels to do that.
At least that's what I found when I deconstructed its methodology.
That's how I'm getting a USB-bootable .iso file for our spin, anyway...
The algorithm I'm using is:
mkisofs
isohybrid
implantisomd5
Your mileage may vary...
On 5/24/18, 1:35 PM, "owner-scientific-linux-us...@listserv.fnal.gov on behalf
of Pat Riehecky" <owner-scientific-linux-us...@listserv.fnal.gov on behalf of
riehe...@fnal.gov> wrote:
Hello,
Are you creating the custom iso with pungi or a different tool?
Pat
On 05/24/2018 01:17 PM, Bill wrote:
> I am creating a custom installation ISO using kickstart. This install
ISO is based on SL 7.2.
>
> When I burn a DVD from this ISO I can boot from the DVD and the install
menu come up as expected.
>
> When I use dd to copy the ISO to a USB key and try to boot from the USB
key the install menu does not appear and the system boots from the hard drive.
>
> I tried using dd to copy the SL7.2 ISO to a USB key. When I try to boot
from this USB key the install menu comes up as expected.
>
> What files on the SL7.2 have to do with booting from the USB key?
>
> Is there a mkisofs option I should be using to make booting USB key work?
--
Pat Riehecky
Fermi National Accelerator Laboratory
www.fnal.gov
www.scientificlinux.org
