Вот конфиг isolinux default vesamenu.c32
prompt 0
timeout 300
menu title Custom Live CD
menu background splash.png
menu color title 1;37;44 #c0ffffff #00000000 std
label live
menu label live - boot the Live System
kernel /casper/vmlinuz
append file=/cdrom/preseed/custom.seed boot=casper initrd=/casper/initrd.gz quiet splash --
label xforcevesa
menu label xforcevesa - boot Live in safe graphics mode
kernel /casper/vmlinuz
append file=/cdrom/preseed/custom.seed boot=casper xforcevesa initrd=/casper/initrd.gz quiet splash --
label install
menu label install - start the installer directly
kernel /casper/vmlinuz
append file=/cdrom/preseed/custom.seed boot=casper only-ubiquity initrd=/casper/initrd.gz quiet splash --
label textonly
menu label textonly - boot Live in textonly mode
kernel /casper/vmlinuz
append file=/cdrom/preseed/custom.seed boot=casper textonly initrd=/casper/initrd.gz quiet --
label debug
menu label debug - boot the Live System without splash and show boot info
kernel /casper/vmlinuz
append file=/cdrom/preseed/custom.seed boot=casper initrd=/casper/initrd.gz nosplash --
label memtest
menu label memtest - Run memtest
kernel /isolinux/memtest
append -
label hd
menu label hd - boot the first hard disk
localboot 0x80
append -