[Booting the ISO]

The usb drive works well, but when I try to do something, I get errors about not having a CD/DVD or USB drive. Depends on the OS, should I just extract the ISO files and try somehow to get them booted? How do I find what are the boot files?

My menu.lst

color white/black
timeout 30

title OpenSuse 11.1 Net install i586
fallback 1
find --set-root /openSUSE-11.1-NET-i586.iso
map /openSUSE-11.1-NET-i586.iso (0xff) || map --mem /openSUSE-11.1-NET-i586.iso (0xff)
map --hook
chainloader (0xff)

title OpenSuse 11.1 KDE4 Live i686
fallback 2
find --set-root /openSUSE-11.1-KDE4-LiveCD-i686.iso
map /openSUSE-11.1-KDE4-LiveCD-i686.iso (0xff) || map --mem /openSUSE-11.1-KDE4-LiveCD-i686.iso (0xff)
map --hook
chainloader (0xff)

title Linux Mint 7
fallback 3
find --set-root /LinuxMint-7.iso
map /LinuxMint-7.iso (0xff) || map --mem /LinuxMint-7.iso (0xff)
map --hook
chainloader (0xff)

title Kubuntu 9.10 Netbook i386
fallback 4
find --set-root /kubuntu-9.10-netbook-i386.iso
map /kubuntu-9.10-netbook-i386.iso (0xff) || map --mem /kubuntu-9.10-netbook-i386.iso (0xff)
map --hook
chainloader (0xff)

title Fedora 11 i686 Live
fallback 5
find --set-root /Fedora-11-i686-Live.iso
map /Fedora-11-i686-Live.iso (0xff) || map --mem /Fedora-11-i686-Live.iso (0xff)
map --hook
chainloader (0xff)

title Ultimate Boot CD 4.1.1
fallback 6
find --set-root /ubcd411.iso
map /ubcd411.iso (0xff) || map --mem /ubcd411.iso (0xff)
map --hook
chainloader (0xff)