During installation, near the end, click the advanced button. Don't install GRUB on your main drive which it defaults to (hd0,0). Change this to your USB disk which is probably (hd1,0) if you have no other drives.
When you boot the the USB disk and get to GRUB, Ubuntu may not launch if GRUB is still pointing to the secondary disk at hd1,0 (because the USB is "primary" to GRUB). Edit the line (press 'e' to edit) and change it from hd1,0 to hd0,0 . Once in Ubuntu you'll want to edit (Alt+F2 then gksu gedit /boot/grub/menu.list ) your GRUB menu to have Ubuntu pointed to hd0,0. ** Changed in: ubuntu Status: New => Confirmed ** Changed in: ubiquity (Ubuntu) Sourcepackagename: None => ubiquity -- grub installs to wrong disk https://bugs.launchpad.net/bugs/230603 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