I installed a recent mini.iso to a USB stick with cat mini.iso > /dev/sdX
and went on to put unstable on the same stick. GRUB was unable to install to /dev/sdX and reported: hd0 appears to contain a iso9660 filesystem which isn't known to reserve space for DOS-style boot. Installing GRUB there could result in FILESYSTEM DESTRUCTION if valuable date is overwritten by grub-setup Doing dd if=/dev/zero of=/dev/sdX bs=512 count=2000 prior to partitioning solved the problem. Whether of not d-i could or should cope with a boot sector processed by isohybrid I would suggest some documentation would not be out of place. -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110815140019.GY14528@desktop