On Monday, May 09, 2011 10:25:44 am Camaleón wrote: > On Mon, 09 May 2011 09:02:45 -0700, Peter Bonucci wrote: > > On Sunday, May 08, 2011 10:17:47 pm Klaus Wolf wrote: > >> I think that this is not a debian related problem, The BIOS of your > >> Laptop has to bi figured to use the USB-Drive for boot. > > > > The BIOS of this computer boots from all of my other USB drives. The > > problem is this particular drive model (Western Digital My Passport > > Essential.) > > > > Booting a USB drive when the drive and computer don't cooperate is an > > old problem. People solved it under Debian years ago. I just don't > > know how they solved it and search engines didn't help. > > There shouldn't be any mistery for this. If the BIOS is capable of > booting from a USB device but the drive where Debian has been installed > is bypassed by the BIOS, I would check that: > > 1/ GRUB is installed into the MBR of the USB disk.
I believe I did this while installing Debian on the USB drive. How can I verify it? > 2/ Partition where "/boot" is installed is marked with the bootable flag > (if there is no dedicated partition for "/boot", then "/" should be the > one to be marked). Already done. The "/" directory is marked boot. > 3/ The system can be properly booted from an external source (i.e., using > a LiveCD of SuperGrubDisk). The laptop boots from its own hard disk. Under SuperGrubDisk, "List devices/partitions", Grub doesn't see the USB drive. None of the other options boot the drive. Selecting the experimental USB support doesn't seem to change anything. > Greetings, Thank you for your help, Peter -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201105091321.20453.peter.bonu...@verizon.net