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Thread: Installing Ubuntu on dedicated partition

  1. #1
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    Dec 2012
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    Installing Ubuntu on dedicated partition

    Hi,
    I have a big hdd which I have partitioned into 3, one is running Windows Xp, another is formatted to NTFS to store data only and the 3rd partition I've kept to install Ubuntu. That way the 2 OS reside on different partitions.

    However, when I install Ubuntu, at what stage do I specify where I want to install it? I've tried but haven't found such an option and aborted the install.

    There was one option in the beginning that offered to install Ubuntu alongside Windows for a dual boot. Where exactly would Ubuntu be installed, on the same partition as Windows?

  2. #2
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    Re: Installing Ubuntu on dedicated partition

    Hi rabot.

    You have to manually select in which partition Ubuntu will be installed. Since they are renamed to generic names (like /dev/sda1) make sure you can recognized the correct partition (by its size for example).

    When is time to 'Allocate drive space', select 'Something Else'.

    There you can specify not to touch (or format) your main Windows partition and select in which partition Ubuntu will be installed.

    This youtube tutorial by quidsup is a good starting guideline: How to use Partition Editor in the Ubuntu Installer.

    I would recommend NOT resizing your main Windows partition, as in the tutorial, but just working on the second, and free NTFS partition.

    Note that all this is available only on the ISO installation (not Wubi).

    Remember that is always a good idea to backup your personal data, and have handy your Windows XP installation CDs... just in case.

    Let us know how is goes.
    Regards.

  3. #3
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    Re: Installing Ubuntu on dedicated partition

    That youtube video was very helpful, thanks.
    I picked the correct 'something else' option before but I forgot to create a swap space. This is what I did now and the installation went smoothly.

    However, when I restarted the PC as requested, it boots directly to Windows. I don't even get the option of choosing which OS to boot from. So now I'm missing out completely on my beautiful Ubuntu installation. Is there any way to access it upon boot?

    Also, when installing Ubuntu alongside Windows, is it installed within the same drive, really next to each other? Maybe I should have picked this option right from the beginning of the installation if I want to have this dual boot option?

  4. #4
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    Re: Installing Ubuntu on dedicated partition

    Do you use UEFI boot or old legacy bios boot?
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  5. #5
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    Re: Installing Ubuntu on dedicated partition

    Quote Originally Posted by darkod View Post
    do you use uefi boot or old legacy bios boot?
    uefi.

  6. #6
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    Re: Installing Ubuntu on dedicated partition

    In that case you probably didn't install ubuntu in uefi mode too. You have to boot the cd/usb in uefi mode so that grub is installed correctly in uefi mode.

    If it still has no option for ubuntu in the uefi boot manager, you might need to add the entry yourself.
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

  7. #7
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    Re: Installing Ubuntu on dedicated partition

    Isn't it possible to do this in your windows OS?
    (configuration screen -> system -> advanced system settings -> startup and recovery -> settings
    select the OS you want to use..) ---> only for windows vista and up


    xp:
    change the boot.ini file
    open command line, type "bootcfg /default / ID(#OS)" probably this will be "bootcfg /default /ID2" if you have no more than 2 operating systems installed.
    Last edited by Squirty; December 15th, 2012 at 11:37 AM.

  8. #8
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    Re: Installing Ubuntu on dedicated partition

    I inserted the cd to install windows and did the same to install ubuntu without making any changes to the BIOS. So I would expect both to be installed in UEFI mode?

    When I go to Windows startup & recovery settings to select which OS is default, there is no Ubuntu in the drop-down...

  9. #9
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    Re: Installing Ubuntu on dedicated partition

    I just reloaded the 'optimised' factory settings for the BIOS and now it says it supports both UEFI and legacy modes. Rebooted but went straight to Windows.

  10. #10
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    Re: Installing Ubuntu on dedicated partition

    Quote Originally Posted by rabot View Post
    I inserted the cd to install windows and did the same to install ubuntu without making any changes to the BIOS. So I would expect both to be installed in UEFI mode?

    When I go to Windows startup & recovery settings to select which OS is default, there is no Ubuntu in the drop-down...
    I don't like working with assumptions. I have no idea how windows installs in uefi mode, but for ubuntu you have to use the 64bit version first of all, and make sure you boot the uefi dvd drive. On uefi boards there are uefi and legacy dvd boot devices listed. It's very easy to use the boot menu, or the boot order inside bios to select the correct device, instead letting it choose itself.

    You can also use boot-repair to check the bootinfo, or do the recommended repair (I don't know if it will help, I'm not recommending it, only mentioning it).

    And on top of all that, just because the board supports uefi it doesn't mean you are using it. But I guess you know whether you are using it or not. Have you tried creating ubuntu entry in the uefi boot manager?
    Darko.
    -----------------------------------------------------------------------
    Ubuntu 12.04 LTS 64bit & Windows 7 Ultimate 64bit

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