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Thread: EFI Partition not selectable in "Something else"

  1. #1
    Join Date
    Mar 2012
    Location
    Germany
    Beans
    92
    Distro
    Ubuntu 13.10 Saucy Salamander

    EFI Partition not selectable in "Something else"

    Hello,

    I tried to install 13.04 daily(April 2nd) but there was no possibility to create a EFI Partition in "Something else". I was afraid to use "Erase everything and install", because I don't know if it would've worked... If i do not create a new partition table, I could edit the existing EFI Partition(Ubuntu 12.10 is installed) and use it as "Reserved BIOS Space", is this the same? If so, why can't I select it with a new Partition table?

    I'm using a Ideapad U410.

  2. #2
    Join Date
    Jun 2010
    Location
    London, England
    Beans
    6,401
    Distro
    Ubuntu Development Release

    Re: EFI Partition not selectable in "Something else"

    I do not have the hardware to test the truth of this but I have seen from posts in other sections of the forum that the live session has to be running in UEFI mode. If the hardware is in BIOS mode then Ubuntu needs to be installed in BIOS mode. If the hardware is in UEFI mode then Ubuntu has to be in UEFI mode. This is not 13.04 specific, in my opinion.

    https://help.ubuntu.com/community/UEFI

    An EFI partition is necessary to install Ubuntu in EFI mode via the manual Ubuntu installer.

    • Since Ubuntu 12.04, it is possible to re-use an existing Windows7 EFI partition (without formatting it). If you use a previous version of Ubuntu, or if you have several installations of GNU/Linux in EFI mode, it is safer to create a new EFI partition EFI.
    • An EFI partition can be created via a recent version of GParted (the Gparted version included in the 12.04 disk is OK), and must have the following attributes:
      • Mount point: /boot/efi (remark: no need to set this mount point when using the manual partitioning, the Ubuntu installer will detect it automatically)
      • Size: minimum 100Mib. 200MiB recommended.
      • Type: FAT32
      • Other: must be located at the start of a GPT disk, and must have a "boot" flag.
    Regards.
    Last edited by grahammechanical; April 4th, 2013 at 09:51 PM.
    It is a machine. It is more stupid than we are. It will not stop us from doing stupid things.
    Ubuntu user #33,200. Linux user #530,530


  3. #3
    Join Date
    Oct 2007
    Location
    Algonquin, IL USA
    Beans
    673
    Distro
    Ubuntu Development Release

    Re: EFI Partition not selectable in "Something else"

    You may need to Turn Off Secure Boot, I had to turn mine off for Beta 2 to run.
    Last edited by kevpan815; April 5th, 2013 at 06:32 AM. Reason: Spelling Error.

  4. #4
    Join Date
    Oct 2007
    Location
    Algonquin, IL USA
    Beans
    673
    Distro
    Ubuntu Development Release

    Re: EFI Partition not selectable in "Something else"

    Oops, that's supposed to say Secure Boot. Have no way to edit it in the Mobile Browser that I am using right now.

    Edit: Nevermind, just found the Use PC Site at the bottom of the Screen.
    Last edited by kevpan815; April 5th, 2013 at 06:35 AM. Reason: Issue Fixed.

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