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 -~----------~----~----~----~------~----~------~--~---
