> On May 24, 2018, at 2:17 PM, Bill <r.w.as...@boeing.com> 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?
“Any if them”, especially the boot loader, which is normally written *before* the partition information and superblicks for the filesystem. That was what “dd” copies first which file copies would not copy. > > Is there a mkisofs option I should be using to make booting USB key work? “dd” is your friend. There are many guidelines for building bootable cd’s you could review, but you can probably save a lot of work not using that.
