Okay. I tried changing the Bios so that the external HD boots before the internal and whammo! I forgot that my USB external drive used to run 7.04 on it, when the drive was part of my old laptop... So it defaults to the 7.04 grub (which by the way is going to be reformatted and used as a test area for other OSes). I suppose I could just copy the menu.lst for 8.10 over the 7.04 grub menu.lst, but that would mean keeping 7.04... Not prudent (sorry, GWB). So, how do you change the order so that it boots from 8.10 now?
Ah... the challenge. Any help would be welcome. Especially since Grub is pretty lacking on its how-tos. On Wed, Jan 21, 2009 at 11:20 AM, Robert Citek <[email protected]> wrote: > > Arghhh, I hate this when it happens. This used to happen to me all > the time when multi-booting with more than one drive. The trick to > avoiding this is in the last step of the install. You need to change > the location of where the boot manager is installed from the internal > drive (the default, usually something like /dev/sda) to the external > drive (e.g. /dev/sdb or /dev/sdd). > > Regards,.0 > - Robert > > On Wed, Jan 21, 2009 at 11:14 AM, Mike Bigalke <[email protected]> wrote: >> >> Well I got the problem partially solved; and I thought it would be a >> worse situation than it was. The partial solution I found at >> http://www.pendrivelinux.com/grub-error-21-after-full-install-to-usb-hard-drive/ >> and consists of >> >> sudo fdisk -l >> >> to get a list of partitions and to find out where you want the primary >> grub to be. In my case (SATA) sda and sdb, in other cases (EDI) hda, >> hdb, hdc, etc. I wanted it to be on sda and not sdb (which it >> defaulted to). >> >> Then >> >> sudo grub-install /dev/sdx >> >> where x is the drive from which you wish to boot. >> >> In my case >> >> sudo grub-install /dev/sda >> >> to fix the problem. >> >> Then reboot. You will no longer be able to boot from the external >> drive.... Unless, and I haven't tried this yet.... I change the boot >> order in my Bios to boot from the external drive before booting from >> the hard drive. I still have to check this out. Be back shortly. >> >> On Wed, Jan 21, 2009 at 10:45 AM, Mike Bigalke <[email protected]> wrote: >>> I installed Ubuntu 8.10 on an external hard drive yesterday. Somehow >>> during the install Grub dHecided to default to the external drive and >>> I now get an error 21 when I try to boot without the USB drive >>> attached. I tried changing the BIOS to default to the internal drive >>> before the external USB; it didn't work. I thought maybe editing >>> menu.lst on the internal would work. Then I was struck by the idea >>> that maybe it actually defaults to and demands that the external drive >>> Grub program be present due to some low level change on the internal >>> hard drive and there I am. Stuck. Any ideas on how to get Grub to >>> default back to the internal hard drive? >>> >>> >>> >>> Here is my menu.lst from the external hard drive. >>> # menu.lst - See: grub(8), info grub, update-grub(8) >>> # grub-install(8), grub-floppy(8), >>> # grub-md5-cryptr/share/doc/grub >>> # and /usr/share/doc/grub-doc/. >>> >>> ## default num >>> # Set the default entry to the entry number NUM. Numbering starts from 0, >>> and >>> # the entry number 0 is the default if the command is not used. >>> # >>> # You can specify 'saved' instead of a number. In this case, the default >>> entry >>> # is the entry saved with the command 'savedefault'. >>> # WARNING: If you are using dmraid do not use 'savedefault' or your >>> # array will desync and will not let you boot your system. >>> default 0 >>> >>> ## timeout sec >>> # Set a timeout, in SEC seconds, before automatically booting the default >>> entry >>> # (normally the first entry defined). >>> timeout 10 >>> >>> ## hiddenmenu >>> # Hides the menu by default (press ESC to see the menu) >>> #hiddenmenu >>> >>> # Pretty colours >>> #color cyan/blue white/blue >>> >>> ## password ['--md5'] passwd >>> # If used in the first section of a menu file, disable all interactive >>> editing >>> # control (menu entry editor and command-line) and entries protected by the >>> # command 'lock' >>> # e.g. password topsecret >>> # password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/ >>> # password topsecret >>> >>> # >>> # examples >>> # >>> # title Windows 95/98/NT/2000 >>> # root (hd0,0) >>> # makeactive >>> # chainloader +1 >>> # >>> # title Linux >>> # root (hd0,1) >>> # kernel /vmlinuz root=/dev/hda2 ro >>> # >>> >>> # >>> # Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST >>> >>> ### BEGIN AUTOMAGIC KERNELS LIST >>> ## lines between the AUTOMAGIC KERNELS LIST markers will be modified >>> ## by the debian update-grub script except for the default options below >>> >>> ## DO NOT UNCOMMENT THEM, Just edit them to your needs >>> >>> ## ## Start Default Options ## >>> ## default kernel options >>> ## default kernel options for automagic boot options >>> ## If you want special options for specific kernels use kopt_x_y_z >>> ## where x.y.z is kernel version. Minor versions can be omitted. >>> ## e.g. kopt=root=/dev/hda1 ro >>> ## kopt_2_6_8=root=/dev/hdc1 ro >>> ## kopt_2_6_8_2_686=root=/dev/hdc2 ro >>> # kopt=root=UUID=773dfc5d-50e2-41ff-856e-6792808e3d19 ro >>> >>> ## default grub root device >>> ## e.g. groot=(hd0,0) >>> # groot=773dfc5d-50e2-41ff-856e-6792808e3d19 >>> >>> ## should update-grub create alternative automagic boot options >>> ## e.g. alternative=true >>> ## alternative=false >>> # alternative=true >>> >>> ## should update-grub lock alternative automagic boot options >>> ## e.g. lockalternative=true >>> ## lockalternative=false >>> # lockalternative=false >>> >>> ## additional options to use with the default boot option, but not with the >>> ## alternatives >>> ## e.g. defoptions=vga=791 resume=/dev/hda5 >>> # defoptions=quiet splash >>> >>> ## should update-grub lock old automagic boot options >>> ## e.g. lockold=false >>> ## lockold=true >>> # lockold=false >>> >>> ## Xen hypervisor options to use with the default Xen boot option >>> # xenhopt= >>> >>> ## Xen Linux kernel options to use with the default Xen boot option >>> # xenkopt=console=tty0 >>> >>> ## altoption boot targets option >>> ## multiple altoptions lines are allowed >>> ## e.g. altoptions=(extra menu suffix) extra boot options >>> ## altoptions=(recovery) single >>> # altoptions=(recovery mode) single >>> >>> ## controls how many kernels should be put into the menu.lst >>> ## only counts the first occurence of a kernel, not the >>> ## alternative kernel options >>> ## e.g. howmany=all >>> ## howmany=7 >>> # howmany=all >>> >>> ## should update-grub create memtest86 boot option >>> ## e.g. memtest86=true >>> ## memtest86=false >>> # memtest86=true >>> >>> ## should update-grub adjust the value of the default booted system >>> ## can be true or false >>> # updatedefaultentry=false >>> >>> ## should update-grub add savedefault to the default options >>> ## can be true or false >>> # savedefault=false >>> >>> ## ## End Default Options ## >>> >>> title Ubuntu 8.10, kernel 2.6.27-7-generic >>> uuid 773dfc5d-50e2-41ff-856e-6792808e3d19 >>> kernel /boot/vmlinuz-2.6.27-7-generic >>> root=UUID=773dfc5d-50e2-41ff-856e-6792808e3d19 ro quiet splash >>> initrd /boot/initrd.img-2.6.27-7-generic >>> quiet >>> >>> title Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode) >>> uuid 773dfc5d-50e2-41ff-856e-6792808e3d19 >>> kernel /boot/vmlinuz-2.6.27-7-generic >>> root=UUID=773dfc5d-50e2-41ff-856e-6792808e3d19 ro single >>> initrd /boot/initrd.img-2.6.27-7-generic >>> >>> title Ubuntu 8.10, memtest86+ >>> uuid 773dfc5d-50e2-41ff-856e-6792808e3d19 >>> kernel /boot/memtest86+.bin >>> quiet >>> >>> ### END DEBIAN AUTOMAGIC KERNELS LIST >>> >>> # This is a divider, added to separate the menu items below from the Debian >>> # ones. >>> title Other operating systems: >>> root >>> >>> >>> # This entry automatically added by the Debian installer for a non-linux OS >>> # on /dev/sda1 >>> title Windows Vista/Longhorn (loader) >>> root (hd0,0) >>> savedefault >>> makeactive >>> chainloader +1 >>> >>> >>> # This entry automatically added by the Debian installer for a non-linux OS >>> # on /dev/sda2 >>> title Windows Vista/Longhorn (loader) >>> root (hd0,1) >>> savedefault >>> makeactive >>> chainloader +1 >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-23-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-23-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-23-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-23-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-23-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-23-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-22-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-22-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-22-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-22-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-22-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-22-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-21-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-21-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-21-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-21-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-21-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-21-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-19-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-19-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-19-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-19-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-19-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-19-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-18-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-18-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-18-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-18-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-18-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-18-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-17-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-17-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-17-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-17-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-17-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-17-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-16-generic (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-16-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro splash vga=773 >>> initrd /boot/initrd.img-2.6.24-16-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, kernel 2.6.24-16-generic (recovery mode) (on >>> /dev/sda5) >>> root (hd0,4) >>> kernel /boot/vmlinuz-2.6.24-16-generic >>> root=UUID=818f9ddc-a156-4240-ae16-5378b6cea4c5 ro single >>> initrd /boot/initrd.img-2.6.24-16-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sda5. >>> title Ubuntu 8.04.2, memtest86+ (on /dev/sda5) >>> root (hd0,4) >>> kernel /boot/memtest86+.bin >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for a non-linux OS >>> # on /dev/sdb2 >>> title Windows Vista/Longhorn (loader) >>> root (hd1,1) >>> savedefault >>> makeactive >>> map (hd0) (hd1) >>> map (hd1) (hd0) >>> chainloader +1 >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sdb3. >>> title Ubuntu 7.10, kernel 2.6.22-14-generic (on /dev/sdb3) >>> root (hd1,2) >>> kernel /boot/vmlinuz-2.6.22-14-generic >>> root=UUID=d6d52470-6775-41b9-814a-778b47ed37ba ro quiet splash >>> initrd /boot/initrd.img-2.6.22-14-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sdb3. >>> title Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode) (on >>> /dev/sdb3) >>> root (hd1,2) >>> kernel /boot/vmlinuz-2.6.22-14-generic >>> root=UUID=d6d52470-6775-41b9-814a-778b47ed37ba ro single >>> initrd /boot/initrd.img-2.6.22-14-generic >>> savedefault >>> boot >>> >>> >>> # This entry automatically added by the Debian installer for an existing >>> # linux installation on /dev/sdb3. >>> title Ubuntu 7.10, memtest86+ (on /dev/sdb3) >>> root (hd1,2) >>> kernel /boot/memtest86+.bin >>> savedefault >>> boot >>> >> >> > >> > > > > --~--~---------~--~----~------------~-------~--~----~ Central West End Linux Users Group (via Google Groups) Main page: http://www.cwelug.org To post: [email protected] To subscribe: [email protected] To unsubscribe: [email protected] More options: http://groups.google.com/group/cwelug -~----------~----~----~----~------~----~------~--~---
