Cannot install Rhel5.5 and Rhel 6 on same machine -- HELP PLEASE !!!!!!

Discussion in 'Installation/Configuration' started by bechkam7, Oct 31, 2011.

  1. bechkam7

    bechkam7 New Member

    Hi All,

    I am new in linux. Stuck in a issue. Please help me.

    I have already installed windoows 2008 R2 on the system. (/dev/sda1)
    I have installed RHEL 5 in /dev/sda3 AND rhel 6 on /dev/sda6
    I cannot install RHEL 5 and RHEL 6 on same machine. Following are the steps i did.

    1. Installed RHEL 5 first and then RHEL 6.

    While installing RHEL 6, I overwrite the MBR for Rhel 5.
    I added entry for Rhel 5 while creating the grub during installation in Rhel 6. I mentioned the partition on which Rhel 5 was installed i.e. /dev/sda3
    After successfully installing Rhel 6. When I tried to boot up in RHEL 5 from grub following error message was shown
    "error 13 invalid unsupported executable format"

    Following is the grub.conf file
    [[email protected] ~]# cat /boot/grub/menu.lst
    # grub.conf generated by anaconda
    #
    # Note that you do not have to rerun grub after making changes to this file
    # NOTICE: You do not have a /boot partition. This means that
    # all kernel and initrd paths are relative to /, eg.
    # root (hd0,5)
    # kernel /boot/vmlinuz-version ro root=/dev/sda6
    # initrd /boot/initrd-[generic-]version.img
    #boot=/dev/sda
    default=0
    timeout=5
    splashimage=(hd0,5)/boot/grub/splash.xpm.gz
    hiddenmenu
    title Red Hat Enterprise Linux (2.6.32-71.el6.x86_64)
    root (hd0,5)
    kernel /boot/vmlinuz-2.6.32-71.el6.x86_64 ro root=UUID=d7f6cd43-646a-4c0f-8f15-5ea72583e6b5 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=128M rhgb quiet
    initrd /boot/initramfs-2.6.32-71.el6.x86_64.img
    title rhel 5
    rootnoverify (hd0,2)
    chainloader +1
    title Other
    rootnoverify (hd0,0)
    chainloader +1

    I mounted the rhel 5 /dev/sda3 partition in RHEL 6. Checked the files are present in /boot folder. They were present.
    Then I copied the rhel 5 grub.conf's ENTRY into Rhel 6 grub.conf.
    This was the updated grub.conf file

    [[email protected] ~]# cat /boot/grub/menu.lst
    # grub.conf generated by anaconda
    #
    # Note that you do not have to rerun grub after making changes to this file
    # NOTICE: You do not have a /boot partition. This means that
    # all kernel and initrd paths are relative to /, eg.
    # root (hd0,5)
    # kernel /boot/vmlinuz-version ro root=/dev/sda6
    # initrd /boot/initrd-[generic-]version.img
    #boot=/dev/sda
    default=0
    timeout=5
    splashimage=(hd0,5)/boot/grub/splash.xpm.gz
    hiddenmenu
    title Red Hat Enterprise Linux (2.6.32-71.el6.x86_64)
    root (hd0,5)
    kernel /boot/vmlinuz-2.6.32-71.el6.x86_64 ro root=UUID=d7f6cd43-646a-4c0f-8f15-5ea72583e6b5 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=128M rhgb quiet
    initrd /boot/initramfs-2.6.32-71.el6.x86_64.img
    title rhel 5
    root (hd0,2)
    kernel /boot/vmlinuz-2.6.18-194.el5 ro root=LABEL=/1 rhgb quiet [email protected]
    initrd /boot/initrd-2.6.18-194.el5.img
    title Other
    rootnoverify (hd0,0)
    chainloader +1

    STILL same error message was shown.

    2. I installed Rhel 6 first and then RHEL 5.
    While trying to boot Rhel 6 following error message was shown
    "error 2 bad file or directory type"
    I booted the system in RHEL 5 and again did all the things mentioned before. Still no output.

    PLEASE can anybody help me out from this.

    Thanks a lot
    :(
     

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