h1. How to boot an iso from flash drive h2. Requirements * Flash drive * "Grub4dos":http://sourceforge.net/projects/grub4dos/files/ * dd * fdisk (or something else that does partitions) h2. Sequence * Download and extract grub4dos, cd to its directory. * Plug in your flash drive. Remember its device (I'll use /dev/sde) * Copy grub4dos MBR to flash drive: bc. # dd if=grldr.mbr of=/dev/sde 18+0 records in 18+0 records out 9216 bytes (9.2 kB) copied, 0.011999 s, 768 kB/s * Create new FAT32 partition on your flash drive: ** Launch fdisk: @# fdisk /dev/sde@ ** Create new partition on full disk: n, Enter, p, Enter, Enter ** Press w to write changes and exit fdisk ** Run @mkfs.vfat -F 32 /dev/sde1@ * Mount your partition and copy .iso to it: bc. # mkdir -p /media/sde1 # mount /dev/sde1 /media/sde1 # cp ~/isoz/debian-504-i386-netinst.iso /media/sde1/ * Copy grub4dos binary over: bc. # cp grldr /media/sde1/ * Edit menu.lst: bc. # editor /media/sde1/menu.lst * Add following content to it: bc. title My cool ISO image find --set-root /debian-504-i386-netinst.iso map /debian-504-i386-netinst.iso (0xff) map --hook chainloader (0xff) * Unmount partition: # umount /dev/sde1 # rm -r /media/sde1 If you are lucky, this will boot. If you unlucky (and it says something about uncontinuous), during copying the .iso image it got fragmented. Re-copy and 1. Pray 2. Try to copy .iso on clean disk. Thanks: "http://grub4dos.sourceforge.net/wiki/index.php/Grub4dos_tutorial":http://grub4dos.sourceforge.net/wiki/index.php/Grub4dos_tutorial And few more links that I can't remember from "http://www.google.com/search?q=grub+boot+iso&ie=UTF-8&oe=UTF-8":http://grub4dos.sourceforge.net/wiki/index.php/Grub4dos_tutorial And thanks to GRUB2 guys for fucking up config!