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on my tower pc i download the ubuntu 12.o4 lts iso disc my presnt system was windows home version approx2004. i ran the ubuntu disc and booted up ran great. ...
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  1. #1
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    totaly lost


    on my tower pc i download the ubuntu 12.o4 lts iso disc my presnt system was windows home version approx2004.

    i ran the ubuntu disc and booted up ran great.

    i have a laptop and decided to do a complete install using the iso on my tower pc not running windows and linux together.

    ubuntu looked easy to install just follow the instructions well not for me as usual .

    just about fully installed then i get a box popped up saying

    executing grub-install/dev/mapper failed
    this is a fatal error

    any advice on how to fix this in very simple terms as i am not to clever with computers.

    when i turn pc on now i get on the screen pci device listing

    thank you john

  2. #2
    Linux Guru jmadero's Avatar
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    hope this helps:

    [ubuntu] executing grub-install dev/mapper failed - Ubuntu Forums

    Looks like you need the alternative installer which can be found on Ubuntu's download page
    Bodhi 1.3 & Bodhi 1.4 using E17
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  3. #3
    Super Moderator devils casper's Avatar
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    It looks like you have selected LVM/RAID during installation. I would suggest you to use ext4 filesystem instead of that. Its a lot easier for new users.
    Boot up from Ubuntu LiveCD/USB and execute this in Terminal :
    Code:
    sudo fdisk -l
    Post output here.

    * Its small L in fdisk -l.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

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  5. #4
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    thanks for all help advice,i just tried to install using a live cd iso image cant remember seeing this anywere -selected LVM/RAID during installation

    please excuse my ignorance but have no idea on how to execute this in terminal

  6. #5
    Super Moderator devils casper's Avatar
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    Boot up your machine from Ubuntu CD. When Desktop appears, press Alt+F2 and type terminal in Run Command box.
    Execute sudo fdisk -l command in that.
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  7. #6
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    Quote Originally Posted by devils casper View Post
    Boot up your machine from Ubuntu CD. When Desktop appears, press Alt+F2 and type terminal in Run Command box.
    Execute sudo fdisk -l command in that.
    just been realy busy so just got to try above earlier,
    i put my cd in desktop came up on page a box appears try without install or install.
    i tried pressing alt and f2 and nothing happens.
    i have tried to do a full install a few times i dont know if this messers the computer up.

    thank you john

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