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I have Ubunut and windows dual booting right now and I just added the newest Red Hat. I read that I since I have already set up grub I shouldn't ...
  1. #1
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    adding Red Hat to my menu.lst file



    I have Ubunut and windows dual booting right now and I just added the newest Red Hat. I read that I since I have already set up grub I shouldn't let Red Hat modify my MBR. Now that I have all three installed I can load all of them except Red Hat. Here is my fdisk and menu.lst files if they help

    FDISK -L

    Disk /dev/sda: 120.0 GB, 120034123776 bytes
    255 heads, 63 sectors/track, 14593 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x9a399a39

    Device Boot Start End Blocks Id System
    /dev/sda1 * 1 2550 20482843+ 7 HPFS/NTFS
    /dev/sda2 2551 2568 144585 83 Linux
    /dev/sda3 2569 10102 60516855 5 Extended
    /dev/sda4 10103 14593 36073957+ 8e Linux LVM
    /dev/sda5 2593 4416 14651248+ 83 Linux
    /dev/sda6 4417 9975 44652636 b W95 FAT32
    /dev/sda7 9976 10102 1020096 82 Linux swap / Solaris
    /dev/sda8 2569 2581 104359+ 83 Linux


    MENU.LST

    # menu.lst - See: grub(, info grub, update-grub(
    # grub-install(, grub-floppy(,
    # 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'.
    # 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=af37fedf-4a38-49f7-92b2-fc25caa43d33 ro

    ## Setup crashdump menu entries
    ## e.g. crashdump=1
    # crashdump=0

    ## default grub root device
    ## e.g. groot=(hd0,0)
    # groot=(hd0,1)

    ## 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 7.10, kernel 2.6.22-14-generic
    root (hd0,1)
    kernel /vmlinuz-2.6.22-14-generic root=UUID=af37fedf-4a38-49f7-92b2-fc25caa43d33 ro quiet splash
    initrd /initrd.img-2.6.22-14-generic
    quiet

    title Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
    root (hd0,1)
    kernel /vmlinuz-2.6.22-14-generic root=UUID=af37fedf-4a38-49f7-92b2-fc25caa43d33 ro single
    initrd /initrd.img-2.6.22-14-generic

    title Ubuntu 7.10, memtest86+
    root (hd0,1)
    kernel /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 Microsoft Windows XP Home Edition
    root (hd0,0)
    savedefault
    makeactive
    chainloader +1

  2. #2
    Linux Newbie x1a4's Avatar
    Join Date
    Dec 2006
    Posts
    123
    Hi,

    Which one of those partitions has RedHat?

    Assuming it's sda4 you would have something like this:
    Code:
    title RedHat
    root (hd0,4)
    kernel /vmlinuz-kernel_version root=UUID=uuid ro kernel_options
    initrd /initrd.img-kernel_version
    Get the UUID using vol_id partition
    For example:
    Code:
    vol_id /dev/sda4

    PS When pasting files with lots of comments, please snip the commented sections.
    Linux user 439038 | Ubuntu user 20892

  3. #3
    Just Joined!
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    Aug 2007
    Posts
    37
    Sorry about all the comments. I did not know for sure until today that all of that was just comments.

    How do I determine the exact kernel_version.

    I have searched and have not found how to ID the kernel yet.

    Ken

  4. #4
    Linux Newbie x1a4's Avatar
    Join Date
    Dec 2006
    Posts
    123
    Look in the /boot directory of the partition where you have RH installed. The file beginning with vmlinuz- is the kernel.

    To check the version of the kernel that's currently running execute
    Code:
    uname -r
    Linux user 439038 | Ubuntu user 20892

  5. #5
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    Colorado, USA
    Posts
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    hermanzone's GRUB page shows how you can just use the distros symlinks to use for the menu.lst entry. If RedHat has them they'll get updated automatically to point to a new kernel version.
    grub page

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