@colin, I've noticed cases where grub is being installed to windows partitions again. Not sure if related to the current wubi probs but thought I'd mention it. It's a little different than the old one that used to refer to partition #256. e.g. http://ubuntuforums.org/showthread.php?t=1603958
Extracts from bootinfoscript (fyi /dev/sda is a USB stick): => Grub 2 is installed in the MBR of /dev/sdb and looks on the same drive in partition #5 for /boot/grub. ... sdb5: _________________________________________________________________________ File system: ntfs Boot sector type: Grub 2 Boot sector info: Grub 2 is installed in the boot sector of sdb5 and looks at sector 296660197 of the same hard drive for core.img, but core.img can not be found at this location. According to the info in the boot sector, sdb5 starts at sector 63. Operating System: Boot files/dirs: /ubuntu/winboot/wubildr.mbr /ubuntu/winboot/wubildr /ubuntu/disks/root.disk /ubuntu/disks/swap.disk /boot/grub/core.img sdb5/Wubi: _________________________________________________________________________ File system: ext4 Boot sector type: Grub 2 Boot sector info: Grub 2 is installed in the boot sector of sdb5/Wubi and looks at sector 21424016 of the same hard drive for core.img, but core.img can not be found at this location. Operating System: Ubuntu 10.10 Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img -- Can't boot Ubuntu after an upgrade from 10.04.1 to 10.10 https://bugs.launchpad.net/bugs/653134 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs