ilko_t, thank's for link. Tested this grub config on desktop PC and netbook Asus Eee PC 900. title Start ubuntu-9.10-desktop-i386.iso from partition 0 find --set-root /pmagic/ubuntu-9.10-desktop-i386.iso map /pmagic/ubuntu-9.10-desktop-i386.iso (0xff) map --hook root (0xff) kernel /casper/vmlinuz boot=casper iso-scan/filename=/pmagic/ubuntu-9.10-desktop-i386.iso quiet splash -- initrd /casper/initrd.lz boot Work very nice for me. Have only problem with notebook Dell Vostro 1000. Boot fail with this screen. P.S. For Ubuntu 9.04 used initrd.gz, for Ubuntu 9.10 initrd.lz