Linux not booting

Thu Aug 3 05:26:44 UTC 2006

On 8/2/06, Chris Lemire <linux.user400354 at gmail.com> wrote:
>
> I installed Linux on my third hard drive. Then I took out the other two
> hard drives and Linux would not boot anymore. Do I need to reinstall grub or
> edit the /boot/grub/menu.lst? It says vmlinuz-2.6.15-23-386 file not found
> when grub comes up. that kernel is on the third hard drive though. I did not
> move the the third hard drive with Linux installed to another plug on the
> ide cable or another ide cable. I am using a live cd and I am able to edit
> the configuration files if I need to. Here is my /boot/grub/menu.1st:
>
>
> ubuntu at ubuntu:~/Desktop/v/boot/grub$ cat menu.lst
> # menu.lst - See: grub(8), info grub,
> update-grub(8)file:///usr/share/ubuntu-artwork/home/index.html
> #            grub-install(8), grub-floppy(8),
> #            grub-md5-crypt, /usr/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.
> #file:///usr/share/ubuntu-artwork/home/index.html
> # 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 change this entry to 'saved' 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         3
>
> ## hiddenmenu
> # Hides the menu by default (press ESC to see the menu)
> hiddenmenu
>
> # Pretty colours
> color cyan/blue white/blue
> file:///usr/share/ubuntu-artwork/home/index.html
> ## 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 timeout
> 3entries protected by the
> # command 'lock'
> # e.g. password topsecret
> #      password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
> # password topsecret
>
> #
> # examples
> #
> # title         Windows
> 95/98/NT/2000file:///usr/share/ubuntu-artwork/home/index.html
> # 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
> modifile:///usr/share/ubuntu-artwork/home/index.htmlfied
> ## by the debian update-grub script except for the default options below
>
> ## DO NOT UNCOMMENT THEM, Just edit them to your needs
> file:///usr/share/ubuntu-artwork/home/index.html
> ## ## 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=/dev/hdc1 rofile:///usr/share/ubuntu-artwork/home/index.html
>
> ## default grub root device
> ## e.g. groot=(hd0,0)file:///usr/share/ubuntu-artwork/home/index.html
> # groot=(hd2,0)
> file:///usr/share/ubuntu-artwork/home/index.html
> ## 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=falsefile:///usr/share/ubuntu-artwork/home/index.html
> # lockalternative=false
>
> ## additional options to use with the default boot option, but not with
> the
> ## alternativesfile:///usr/share/ubuntu-artwork/home/index.html
> ## e.g. defoptions=vga=791 resume=/dev/hda5
> # defoptions=quiet splashtimeout         3
>
> ## altoption boot targets option
> ## multiple altoptions lines are
> allowedfile:///usr/share/ubuntu-artwork/home/index.html
> ## e.g. altoptions=(extra menu suffix) extra boot options
> ##      altoptions=(recovery mode) 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
> ofile:///usr/share/ubuntu-artwork/home/index.htmlption
> ## 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=falsetimeout         3
>
> ## ## End Default Options ##
>
> title           Ubuntu, kernel 2.6.15-23-386
> root            (hd2,0)oot            (hd2,0)
> kernel          /boot/vmlinuz-2.6.15-23-386 root=/dev/hdc1 ro quiet splash
>
> initrd          /boot/initrd.img-2.6.15-23-386
> savedefault
> boot
>
> title           Ubuntu, kernel 2.6.15-23-386 (recovery mode)
> root            (hd2,0)
> kernel          /boot/vmlinuz-2.6.15-23-386 root=/dev/hdc1 ro single
> initrd          /boot/initrd.img-2.6.15-23-386
> boot
>
> title           Ubuntu, memtest86+
> root            (hd2,0)timeout         3
> kernel          /boot/memtest86+.bin
> boot
>
> ### END DEBIAN AUTOMAGIC KERNELS
> LISTfile:///usr/share/ubuntu-artwork/home/index.html
> file:///usr/share/ubuntu-artwork/home/index.html
> oot            (hd2,0)
>
>
>
>
> timeout         3
>
>
>
> Here is the output of fdisk:
>
>
> ubuntu at ubuntu:~/Desktop/v/boot/grub$ sudo fdisk -l
>
> Disk /dev/hdc: 4310 MB, 4310433792 bytes
> 255 heads, 63 sectors/track, 524 cylinders
> file:///usr/share/ubuntu-artwork/home/index.html
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
>    Device Boot      Start         End      Blocks   Id  System
> /dev/hdc1   *           1         498     4000153+  83  Linux
> /dev/hdc2             499         524      208845    5  Extended
> /dev/hdc5             499         524      208813+  82  Linux swap /
> Solaris
> ubuntu at ubuntu:~/Desktop/v/boot/grub$
>
>
> --file:///usr/share/ubuntu-artwork/home/index.html
> ubuntu-users mailing listoot            (hd2,0)
> ubuntu-users at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
>
>
> Hi Chris!

This is a bit of a guess.  Try stopping the countdown (press escape or any
key during the grub 3 second countdown ("timeout         3" from above) and
then edit the root line to read "root            (hd0,0)" instead of it's
current "root            (hd2,0)" - then see if it finds your Kernel.

My guess is that when you removed the other hard drives the system now sees
hdc as hd0 (#1), rather than hd2 (#3).

Please let us know if it works.  I hope someone more experienced and
knowledgeable will also respond.

Good Hunting!

Tod
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