2.4.x to 2.6.y kernel

From: michael (linux_at_networkingnewsletter.org.uk)
Date: 07/18/05

  • Next message: Kevin Mark: "Re: size of wiki.debian.net" 
    To: debian user <debian-user@lists.debian.org>
Date: Mon, 18 Jul 2005 11:23:32 +0100

    Folks - I'm sure others have come across this but I can't see the
    solution in the archives, so all help welcomed.

    On my box (2*Xeon, SATA HD), I've been running 2.4.27-1-686-smp and
    thought it's about time to move to 2.6 so I did a
     sudo apt-get install kernel-image-2.6.8-2-686-smp
    and rebooted but now get a kernel panic with this kernel, along the
    lines of

       pivot_root: No such file or directory
       /sbin/init: 432: cannot open dev/console: No such file
       Kernel panic - not syncing: Attempt to kill init!

    Any ideas? My grub menu.lst (below) uses initrd and I'm wondering if
    that's part of the problem. I also note that
    $ ls -lt /initrd*
    lrwxrwxrwx 1 root root 31 Jul 18 10:54 /initrd.img ->
    boot/initrd.img-2.6.8-2-686-smp
    lrwxrwxrwx 1 root root 32 Nov 12 2004 /initrd.img.old ->
    boot/initrd.img-2.4.27-1-686-smp

    which doesn't quite seem to match up the grub/menu.lst:

    # menu.lst - See: grub(8), info grub, update-grub(8)
    # 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.
    #
    # You can specify 'saved' instead of a number. In this case, the default
    entry
    # is the entry saved with the command 'savedefault'.
    default 0

    ## timeout sec
    # Set a timeout, in SEC seconds, before automatically booting the
    default entry
    # (normally the first entry defined).
    timeout 5

    # 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
    password --md5 $1$qQ.rd0$wiHMnIUNnhVMeuxGAKXzp/

    #
    # 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 specifiv 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=root=/dev/hde2 ro

    ## default grub root device
    ## e.g. groot=(hd0,0)
    # groot=(hd0,7)

    ## 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

    ## altoption boot targets option
    ## multiple altoptions lines are allowed
    ## 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 option
    ## e.g. memtest86=true
    ## memtest86=false
    # memtest86=true

    ## ## End Default Options ##

    title Debian GNU/Linux, kernel 2.6.8-2-686-smp
    root (hd0,7)
    kernel /vmlinuz-2.6.8-2-686-smp root=/dev/hde2 ro
    initrd /initrd.img-2.6.8-2-686-smp
    savedefault
    boot

    title Debian GNU/Linux, kernel 2.6.8-2-686-smp (recovery mode)
    root (hd0,7)
    kernel /vmlinuz-2.6.8-2-686-smp root=/dev/hde2 ro single
    initrd /initrd.img-2.6.8-2-686-smp
    savedefault
    boot

    title Debian GNU/Linux, kernel 2.4.27-1-686-smp
    root (hd0,7)
    kernel /vmlinuz-2.4.27-1-686-smp root=/dev/hde2 ro
    initrd /initrd.img-2.4.27-1-686-smp
    savedefault
    boot

    title Debian GNU/Linux, kernel 2.4.27-1-686-smp (recovery mode)
    root (hd0,7)
    kernel /vmlinuz-2.4.27-1-686-smp root=/dev/hde2 ro single
    initrd /initrd.img-2.4.27-1-686-smp
    savedefault
    boot

    title Debian GNU/Linux, kernel 2.4.27-1-386
    root (hd0,7)
    kernel /vmlinuz-2.4.27-1-386 root=/dev/hde2 ro
    initrd /initrd.img-2.4.27-1-386
    savedefault
    boot

    title Debian GNU/Linux, kernel 2.4.27-1-386 (recovery mode)
    root (hd0,7)
    kernel /vmlinuz-2.4.27-1-386 root=/dev/hde2 ro single
    initrd /initrd.img-2.4.27-1-386
    savedefault
    boot

    ### 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/hde1
    title Windows NT/2000/XP
    root (hd0,0)
    savedefault
    makeactive
    chainloader +1 

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  • Next message: Kevin Mark: "Re: size of wiki.debian.net"

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