Pls. help repair/restore grub in multiboot system

Discussion in 'all things UNIX' started by taytong888, Apr 3, 2010.

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  1. taytong888

    taytong888 Registered Member

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    Hi,

    I have a laptop with 250 GB SATA HD that has the following:

    Win7 Pro installed first with sda1=system reserved partition, sda2=C: drive, sda5=separate software application programs to differentiate from Windows' Program Files. Ubuntu 9.10 was installed next (sda6=common swap partition for all Linux distros, sda7=Ubuntu root, sda8=Ubuntu home). Then Opensuse 11.2 was installed with sda12=root and sda13=home. Finally FedoraCore11 was installed with sda9=boot, sda10=root and sda11=home. Ubuntu and Suse have grub loader in their own root partitions.

    Suse's grub menu controls all OS's. From this grub menu I can select Windows or any other Linuxes. Suse uses legacy grub because it was installed right after Ubuntu 9.10 which uses (legacy) grub.

    Here is opensuse's grub menu:

    # Modified by YaST2. Last modification on Wed Mar 31 11:49:28 EST 2010
    # THIS FILE WILL BE PARTIALLY OVERWRITTEN by perl-Bootloader
    # Configure custom boot parameters for updated kernels in /etc/sysconfig/bootloader

    default 1
    timeout 15
    ##YaST - generic_mbr
    gfxmenu (hd0,11)/boot/message
    ##YaST - activate

    ###Don't change this comment - YaST2 identifier: Original name: linux###
    title Debug -- openSUSE 11.2 - 2.6.31.12-0.2
    root (hd0,11)
    kernel /boot/vmlinuz-2.6.31.12-0.2-debug root=/dev/disk/by-id/ata-Hitachi_HTS543225L9A300_090707FB2D00LJCT6UGB-part12 resume=/dev/disk/by-id/ata-Hitachi_HTS543225L9A300_090707FB2D00LJCT6UGB-part6 splash=silent quiet showopts vga=0x317
    initrd /boot/initrd-2.6.31.12-0.2-debug

    ###Don't change this comment - YaST2 identifier: Original name: linux###
    title openSUSE 11.2 - 2.6.31.12-0.2
    root (hd0,11)
    kernel /boot/vmlinuz-2.6.31.12-0.2-default root=/dev/disk/by-id/ata-Hitachi_HTS543225L9A300_090707FB2D00LJCT6UGB-part12 resume=/dev/disk/by-id/ata-Hitachi_HTS543225L9A300_090707FB2D00LJCT6UGB-part6 splash=silent quiet showopts vga=0x317 acpi=off noapic
    initrd /boot/initrd-2.6.31.12-0.2-default

    ###Don't change this comment - YaST2 identifier: Original name: failsafe###
    title Failsafe -- openSUSE 11.2 - 2.6.31.12-0.2
    root (hd0,11)
    kernel /boot/vmlinuz-2.6.31.12-0.2-default root=/dev/disk/by-id/ata-Hitachi_HTS543225L9A300_090707FB2D00LJCT6UGB-part12 showopts apm=off noresume nosmp maxcpus=0 edd=off powersaved=off nohz=off highres=off processor.max_cstate=1 x11failsafe vga=0x317
    initrd /boot/initrd-2.6.31.12-0.2-default

    ###Don't change this comment - YaST2 identifier: Original name: Ubuntu 9.10, kernel 2.6.31-20-generic (/dev/sda7)###
    title Ubuntu 9.10, kernel 2.6.31-20-generic (/dev/sda7)
    rootnoverify (hd0,6)
    chainloader +1

    ###Don't change this comment - YaST2 identifier: Original name: windows 1###
    title Windows 7_Professional_32-bit
    rootnoverify (hd0,0)
    chainloader +1

    ###Don't change this comment - YaST2 identifier: Original name: windows 2###
    title windows 2
    rootnoverify (hd0,1)
    chainloader +1

    ###Add Fedora Core 11 to the GRUB menu###
    title Fedora Core 11 on /dev/sda10 (root partition sda10)
    configfile (hd0,:cool: /grub/grub.conf

    $fdisk -l gives:

    Device Boot Start End Blocks Id System
    /dev/sda1 1 13 102400 7 HPFS/NTFS
    Partition 1 does not end on cylinder boundary.
    /dev/sda2 13 3200 25600000 7 HPFS/NTFS
    /dev/sda3 * 3201 15332 97450290 5 Extended
    /dev/sda5 3201 6387 25599546 7 HPFS/NTFS
    /dev/sda6 6388 6514 1020096 82 Linux swap / Solaris
    /dev/sda7 6515 7534 8193118+ 83 Linux
    /dev/sda8 7535 8519 7911981 83 Linux
    /dev/sda9 11560 11582 184716 83 Linux
    /dev/sda10 11583 13390 14522728+ 83 Linux
    /dev/sda11 13391 15332 15599083+ 83 Linux
    /dev/sda12 8520 10057 12353953+ 83 Linux
    /dev/sda13 10058 11559 12064783+ 83 Linux

    My problem is that while trying to fix a problem upgrading Ubuntu 9.10 to 10.04 LTS beta1 which I eventually overcame, I misunderstood about grub and thought I would have to (re)install grub to Ubuntu because sudo gedit /etc/boot/grub/menu.lst gives a blank file (I found out much later this is because Ubuntu 10.10 uses grub2 which replaces grub's /etc/boot/grub/menu.lst with /etc/boot/grub/grub.cfg). Following a recent Ubuntuforums tutorial entitled"Grub/XP/Vista Boot Loader", I did the following commands to restore grub to Ubuntu:

    sudo mkdir /media/sda7

    sudo mount /dev/sda7 /media/sda7

    Install grub to /dev/sda as (hd0):

    sudo grub-install --root-directory=/media/sda7 /dev/sda

    Then I only saw Ubuntu's grub menu. In a panick, I tried to reverse the above in order to install grub back to opensuse (sda12) hoping to get back to the way it was before:

    sudo mkdir /media/sda12

    sudo umount /dev/sda7 /media/sda7

    sudo mount /dev/sda12 /media/sda12

    sudo grub-install --root-directory=/media/sda12 /dev/sda12

    Somehow I also messed up Windows' boot file and boot partition table. Now I am still trying to use Windows installation CD to repair Windows but it has taken several hours and am still waiting for screen response. I cannot boot into any Linux distro either.

    I would very much appreciate your help restoring grub so that I can boot into Windows and any Linux distros.
     
  2. Ocky

    Ocky Registered Member

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    Suse uses grub legacy, so to install to sda12 isn't it ..... ?

    sudo grub
    find /boot/grub/stage1
    root (hd?,?)
    setup (hd0)
    quit
    sudo reboot


    sudo grub
    root (hd0,11)
    setup (hd0)
    quit
    sudo reboot
     
  3. taytong888

    taytong888 Registered Member

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    Posts:
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    Thanks for your reply. Yesterday my laptop took 8-10 hours+ to do a startup repair and even when I finally was able to boot into Win 7, I still have to do another system restore and clean up. Windows repair wiped out all my Linuxes so I have to do some partitioning and Linux re-installation!

    Is there a way to set up GRUB/GRUB2 for a multiboot system such that if one system crashes, e.g. either Windows or one Linux OS crashes, I can still boot into the remaining ones?

    Thanks in advance.
     
    Last edited: Apr 4, 2010
  4. Ocky

    Ocky Registered Member

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    George, S.Africa
    Last edited: Apr 4, 2010
  5. mack_guy911

    mack_guy911 Registered Member

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    best way make your windows install 1st and from windows you can use easybcd tool

    2nd if you want to put grub 1st then put it separately what i did is i got 2 disk one from windows second for linux and from linux i make 1st drive of my fedora 1024 mb for boot (grub install) then / and then home all different and other linux with grub in their root so i my root go away i dont need to worry i still boot from grub others only my root wont work

    3rd please backup your menu.lst from grub you can check and add manually changes if anything happen

    and make a backup of your hardisk or clone from software like paragon or clonezilla it make you restore in 5-10 mins you get everyting till backup date dont need to install and tweak every thing in window make a backup atleast once in the month specially for windows at least it save you from lot of pain from installing everything
     
  6. taytong888

    taytong888 Registered Member

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    Hi mack_guy911,

    Thanks for your reply.

    1. Did try using Easybcd v2beta1 which works with windoz 7 and ubuntu but didn't work well if opensuse was installed later but wants to control grub.

    2. Two hard disks would be ideal but that is for a desktop. I only have one hard disk in my laptop.

    3 & 4. Point taken.

    Thanks a lot.
     
  7. taytong888

    taytong888 Registered Member

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    Hello Ocky,

    Thanks for giving me the 2 links. Will the procedure in Link#2 work with Grub2?

    Have a nice day!
     
  8. Ocky

    Ocky Registered Member

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    George, S.Africa
    I am not an expert , but I think you can just make chainloader entries for the other OS,s.
     
    Last edited: Apr 4, 2010
  9. mack_guy911

    mack_guy911 Registered Member

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  10. mack_guy911

    mack_guy911 Registered Member

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    sorry i didnt try easybcd v2 beta i use fedora grub i am not an expert but what i did was

    https://www.wilderssecurity.com/showthread.php?p=1645522#post1645522

    please check fedora forums link as well
     
  11. taytong888

    taytong888 Registered Member

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    Hi again mack_guy911,

    Which open source software do you recommend that can do whole disk & partition image backup and restore on both Windows 7 and Linux operating systems? Can Paragon and Clonezilla do this on multiboot systems?

    Thanks for your help.
     
  12. mack_guy911

    mack_guy911 Registered Member

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    Last edited: Apr 5, 2010
  13. mack_guy911

    mack_guy911 Registered Member

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