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Thread: Grub Rescue

  1. #11
    Join Date
    Aug 2010
    Location
    Minnesota, USA
    Beans
    173
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Grub Rescue

    I am back from vacation and back at working for a "fix" for my computer.
    I am currently reinstalling 11.04 alongside Ubuntu 12.04.4 LTS (which I have on my computer) using a live CD of my old system version (11.04 Ubuntu).
    My boot volume was 100% full and while
    trying to correct the problem I was having, by removing files manually (following the risky advice of a user with not enough beans to know
    fully what he/she was recommending), I stupidly deleted some .mod files in grub I thought were media/music files. YIKES!!! CRASH!
    So ..... two weeks into this, and back from a few days away on vacation (while gone I did some "reading" up to have a better understanding
    of how this Ubuntu works for my scenario)...I need some recommendations. I am awaiting for the install to complete....it has been 3 hours...still
    says "resizing partition". I have a BIOS utility. It told me it takes a long time...but how long is that? Would love to hear from other users who have had to do this.

    Also....what next steps would I take to correct the errors (reinstall missing files-.mod) in Grub2 on my Ubuntu 12.04.4 LTS.
    I have a desktop (Samsung)...any other info you need? Should I start a new thread? This is unrelated to the initial title on this post. : (
    One thing has led to another.
    Last edited by sewbiz; June 23rd, 2014 at 07:18 PM.

  2. #12
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    14,193
    Distro
    Xubuntu 22.04 Jammy Jellyfish

    Re: Grub Rescue

    sewbiz; OH Boy.

    Allow me to step in here and try and assist.

    1st, 11.04 is a no no ! .. Release 11.04 is End-Of-Life, the software repository has been turned down and that release is no longer supported.
    2nd, We must have a liveDVD/USB to work from to (RE-)install grub .. as /boot is full we may have to jump through several hoops to do this.
    Download the 12.04.4 .iso file release from:
    http://releases.ubuntu.com/

    Verify the .iso file:
    https://help.ubuntu.com/community/HowToMD5SUM
    http://www.linuxquestions.org/linux/...sum_in_Windows

    Burn the .iso as an image NOT data at a slow rate:
    https://help.ubuntu.com/community/BurningIsoHowto
    http://www.ubuntu.com/download/deskt...dvd-on-windows

    And finally check the liveDISK for defects:
    https://help.ubuntu.com/community/In...IntegrityCheck

    3rd, Now we are ready to go to work.
    Boot the liveDVD to a terminal and execute terminal commands:
    # represents a comment not to be executed. If you have more than 1 hard disk installed and ubuntu is NOT installed onto that 1st partition, then adjustements to these commands will have to be made.
    Code:
    sudo fdisk -lu ##to make sure the hard drive we are working with is indeed 'sda' else STOP and re-evaluate.##
    sudo mount /dev/sda1 /mnt
    sudo grub-install --boot-directory=/mnt /dev/sda
    sudo umount /mnt
    We can hope there is "room" for grub to re-install // else ... well there are ways to jump over that too. We cross that bridge when we get to it.

    Press on !

    ain't no step for a stepper
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubuntu'n !

  3. #13
    Join Date
    Aug 2010
    Location
    Minnesota, USA
    Beans
    173
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Grub Rescue

    Can I download to a USB drive? But you say I need a LIVE DVD. I am confused. How will my computer be able to "read" the program that is uploaded to a USB?
    Baby steps please. I am not all that familiar with all things UBUNTU. Ubuntu 12.04.4LTS is currently on my computer that has the FULL BOOT volume. : (

  4. #14
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Kubuntu

    Re: Grub Rescue

    This has instructions for both Windows and Ubuntu on install to flash drive or DVD. And a one button to download, choose the 64 bit version unless system is real old.

    Also instructions for DVD or USB flash drive
    http://www.ubuntu.com/desktop/get-ubuntu/download



    You download the ISO and use the tool for either Windows or Ubuntu to install from ISO to flash drive or DVD. More details in each of the links by Bashing-om with screen shots so you can follow along to know exactly what to do.
    Last edited by oldfred; June 23rd, 2014 at 09:04 PM. Reason: Missing link
    UEFI boot install & repair info - Regularly Updated :
    https://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  5. #15
    Join Date
    Aug 2010
    Location
    Minnesota, USA
    Beans
    173
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Grub Rescue

    If to a flash drive....how will my system "read" the USB? It is in grub rescue mode. No terminal to get to...no desktop.

  6. #16
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    14,193
    Distro
    Xubuntu 22.04 Jammy Jellyfish

    Re: Grub Rescue

    sewbiz; A thought;

    Boot up that 11.04 EOL liveCD and download the .iso file and
    burn the .iso to a usb-stick:
    http://www.ubuntu.com/download/help/...tick-on-ubuntu

    we keep on
    'til this is a done deal
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubuntu'n !

  7. #17
    Join Date
    Aug 2010
    Location
    Minnesota, USA
    Beans
    173
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Grub Rescue

    Quote Originally Posted by Bashing-om View Post
    sewbiz; OH Boy.

    Allow me to step in here and try and assist.

    1st, 11.04 is a no no ! .. Release 11.04 is End-Of-Life, the software repository has been turned down and that release is no longer supported.
    2nd, We must have a liveDVD/USB to work from to (RE-)install grub .. as /boot is full we may have to jump through several hoops to do this.
    Download the 12.04.4 .iso file release from:
    http://releases.ubuntu.com/

    Verify the .iso file:
    https://help.ubuntu.com/community/HowToMD5SUM
    http://www.linuxquestions.org/linux/...sum_in_Windows

    Burn the .iso as an image NOT data at a slow rate:
    https://help.ubuntu.com/community/BurningIsoHowto
    http://www.ubuntu.com/download/deskt...dvd-on-windows

    And finally check the liveDISK for defects:
    https://help.ubuntu.com/community/In...IntegrityCheck

    3rd, Now we are ready to go to work.
    Boot the liveDVD to a terminal and execute terminal commands:
    # represents a comment not to be executed. If you have more than 1 hard disk installed and ubuntu is NOT installed onto that 1st partition, then adjustements to these commands will have to be made.
    Code:
    sudo fdisk -lu ##to make sure the hard drive we are working with is indeed 'sda' else STOP and re-evaluate.##
    sudo mount /dev/sda1 /mnt
    sudo grub-install --boot-directory=/mnt /dev/sda
    sudo umount /mnt
    We can hope there is "room" for grub to re-install // else ... well there are ways to jump over that too. We cross that bridge when we get to it.

    Press on !
    ain't no step for a stepper
    I can't open a terminal to check anything. How to get to a terminal when the system won't boot to get me to desktop?

  8. #18
    Join Date
    Aug 2010
    Location
    Minnesota, USA
    Beans
    173
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Grub Rescue

    Quote Originally Posted by Bashing-om View Post
    sewbiz; A thought;

    Boot up that 11.04 EOL liveCD and download the .iso file and
    burn the .iso to a usb-stick:
    http://www.ubuntu.com/download/help/...tick-on-ubuntu

    we keep on
    'til this is a done deal
    Was told this was a bad idea....ooops...too late...did what you suggested here...now on to other advice.
    But....do appreciate all help...good or bad, trial and error with Linux. Still no fix in sight....holding back the tears!

  9. #19
    Join Date
    Jul 2010
    Location
    ozarks, Arkansas, USA
    Beans
    14,193
    Distro
    Xubuntu 22.04 Jammy Jellyfish

    Re: Grub Rescue

    sewbiz; Making good progress.

    Admittedly 11.04 not the best tool to use, but get 12.04.4 burned to the usb thumb drive ..will be all done with 11.04 and we can then move on.

    it ain't nothing but a thing
    THE current(cy) in Documentation:
    https://help.ubuntu.com/community/PopularPages

    Happy ubuntu'n !

  10. #20
    Join Date
    Aug 2010
    Location
    Minnesota, USA
    Beans
    173
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Grub Rescue

    I burned the image file to DVD. I put the DVD into my computer (the broken one in grub rescue mode. Black screen on
    computer says grub rescue> _ (the dash is blinking) now what?

    Is the sudo command "SAFE"....I read somewhere it wasn't at the point I am at. Also...when I have typed it before
    my computer told me " unknown command 'sudo'
    Do I have to use certain types of commands it will understand. I will try what you suggest and get back to you.

    I tried both with and without 'sudo' and the command 'fdisk -lu'
    Using one I get..... unknown command 'sudo' the other I get ..... unknown command 'fdisk'
    Should I be using different symbols? It does not understand my language.

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