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Thread: Dual boot installation GRUB prompt - what next?

  1. #1
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    Oct 2012
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    Dual boot installation GRUB prompt - what next?

    Am new to this.....Please help...have spent three days reading and trying to install ubuntu 11.4 in a dual boot config with xp. wiped whole hard drive installed xp. created partions and installation all went through fine. trying to boot and I get a GNU Grub version 1.99 message followed by a grub prompt.

    What happens next? What does one do now? Do I need to do wubi or something? Boot sequence is now hard drive first followed by cd. Have live cd and a windows recovery disk.

    i have looked everywhere and am going gogled eyed reading about grub etc. Can anyone help?

    i think the installation is on sd5.

  2. #2
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    Ubuntu 12.04 Precise Pangolin

    Re: Dual boot installation GRUB prompt - what next?

    Just a reminder, 11.04 is running out of support soon, very soon (if not already out of support).

    Don't you want to try something more recent and even better LTS release? (Long Term Supported)

    Like the latest 12.04 LTS?

    If you still want to try only try and repair the current dual boot, boot the 11.04 cd in live mode and in terminal post the output of:
    sudo fdisk -l (small L)
    sudo parted -l
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  3. #3
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    Re: Dual boot installation GRUB prompt - what next?

    would love to use 12.04 LTS but the problem is the computer does not support PAE? I have an old machine. aspire 2010

  4. #4
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    Re: Dual boot installation GRUB prompt - what next?

    Try booting using nomodeset option by following these instructions http://askubuntu.com/questions/14728...o-ubuntu-12-04. Those instructions work for older versions as well.

    I think the problem you are having is with the ATI Mobility Radeon graphics card. Support for 11.04 will end 28 October 2012. I would definitely recommend that you try 12.04. 12.04 may actually work with the ATI graphics card.

    PAE is not going to help with the Aspire 2010. The Aspire 2010 only supports 2GB of RAM from what I have found searching for the specs. PAE is helpful for computers with 4 GB or more of RAM when using the 32-bit version of Ubuntu. Ubuntu 12.04 should still work on that machine; however, it may be slow due to the single-core 1.5GHz processor. You may find Xubuntu or Lubuntu are faster; however, give Ubuntu a try.
    Last edited by Old_Grey_Wolf; October 8th, 2012 at 09:36 PM.
    Use whatever OS or desktop works for you. Backup your computer regularly, and definitely before updating, upgrading, or partitioning.

  5. #5
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    Re: Dual boot installation GRUB prompt - what next?

    so i got the 12.04 lts version working....dont know how i did it ..must have been a fluk....see what you mean regarding speed.......ok I have decided to go with lubuntu....can I duel boot this aswell?

  6. #6
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    Re: Dual boot installation GRUB prompt - what next?

    Yes, you can dual boot Lunbutu.


    You don't need to uninstall Ubuntu, just run the install off the CD as usual.

    1) When you get to the dialog asking you which partition to install Ubuntu on, choose Manual.
    2) Select your Ubuntu partition from the list and set its mount point to '/' (it's on the dropdown menu). Check the format box.
    3) Select the swap partition from the list and set it as swap.
    Last edited by Old_Grey_Wolf; October 9th, 2012 at 08:21 PM. Reason: added information
    Use whatever OS or desktop works for you. Backup your computer regularly, and definitely before updating, upgrading, or partitioning.

  7. #7
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    Oct 2012
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    Re: Dual boot installation GRUB prompt - what next?

    Thanks for all the help. i now have lubuntu installed on machine alongside xp. I have been experimenting over the last week end with Lubuntu. Does ll I need and appears to run much faster on the old laptop than the xp did. However I still get the issue with the grub prompt? Any ideas?

  8. #8
    Join Date
    Oct 2012
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    Re: Dual boot installation GRUB prompt - what next?

    lubuntu@lubuntu:~$ sudo fdisk -l

    Disk /dev/sda: 160.0 GB, 160041885696 bytes
    255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x91769176

    Device Boot Start End Blocks Id System
    /dev/sda1 * 63 51202047 25600992+ c W95 FAT32 (LBA)
    /dev/sda2 188112894 312580095 62233601 5 Extended
    /dev/sda3 51202048 188112212 68455082+ b W95 FAT32
    /dev/sda5 188112896 311011327 61449216 83 Linux
    /dev/sda6 311013376 312580095 783360 82 Linux swap / Solaris

    Partition table entries are not in disk order
    lubuntu@lubuntu:~$ sudo parted -l
    Model: ATA SAMSUNG HM160HC (scsi)
    Disk /dev/sda: 160GB
    Sector size (logical/physical): 512B/512B
    Partition Table: msdos

    Number Start End Size Type File system Flags
    1 32.3kB 26.2GB 26.2GB primary fat32 boot, lba
    3 26.2GB 96.3GB 70.1GB primary fat32
    2 96.3GB 160GB 63.7GB extended
    5 96.3GB 159GB 62.9GB logical ext4
    6 159GB 160GB 802MB logical linux-swap(v1)


    Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0
    has been opened read-only.
    Error: Can't have a partition outside the disk!

    lubuntu@lubuntu:~$ ^C
    lubuntu@lubuntu:~$

    This is the info from the disk and the partitions...Any clues here as to why it goes to the grub prompt?

  9. #9
    Join Date
    Nov 2009
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    Segur De Calafell, Spain
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    11,660
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Dual boot installation GRUB prompt - what next?

    I was under the impression that it's working now. What grub prompt are you talking about exactly? The computer doesn't boot?

    If it doesn't, boot the lubuntu cd in live mode, open terminal and try something like this:
    Code:
    sudo mount /dev/sda5 /mnt
    sudo grub-install --root-directory=/mnt /dev/sda
    Reboot without the cd and see if it helped.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  10. #10
    Join Date
    Mar 2011
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    UK
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    125
    Distro
    Ubuntu 13.04 Raring Ringtail

    Re: Dual boot installation GRUB prompt - what next?

    You could try downloading a SuperGRUB cd image and boot from that which will allow you to boot into your installed O/S. From there you can run the commands:

    Code:
    sudo update-grub
    sudo grub-install /dev/sda
    which should fix your problem.

    Barry
    Desktop: Z77X-UD5H, Intel i7 3770k, NVidia GeForce 660 Ti Sli 16GB DDR3 RAM 2TB HDD
    OSes: Mint 14 x64 Windows 7 Ultimate x64
    Laptop: Dell Latitude E6430
    OSes: Ubuntu 13.04 x64, Backtrack 5 R3

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