I created own custom CentOS iso. I used mkisofs make it.
This is part of my isolinux.cfg file:
label vesa
menu label Install ^RAIDIX system
kernel vmlinuz
append initrd=initrd.img xdriver=vesa nomodeset text linux ks=cdrom:/isolinux/ks.cfg
If I specify parameter ks=cdrom:/isolinux/ks.cfg
my iso will boot only from cd or dvd-rom.
If I specify parameter ks=hd:<device>:/ks.cfg
my iso will boot only from usb-drive.
Can I specify ks parameter to boot from both type of installation media?