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Thread: Ubuntu 12.04 on macbook pro9,2

  1. #1
    Join Date
    Jun 2012
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    16

    Ubuntu 12.04 on macbook pro9,2

    I seem to have tried all the various suggested methods for installing ubuntu on a mbp, but can't seem to get anything that works and was wondering if anyone has run into any new problems with the latest non-retina models?

    I have a core i7 in my macbook, and model identifier is MacBookPro9,2. I have partitioned my HD using disk utility and have 700gig free space ready for the install (I haven't removed OSX Lion, it is still there in a 50gig partition).

    Problem:

    I am just getting a blank screen with a blinking cursor (unresponsive) in the top left whenever I boot from the disk. I left it for 20 minutes and nothing ever happened. This was without any boot manager, just holding "c" on startup.

    Attempted remedies:

    I have downloaded the 64 ubuntu iso from their site 3 times now and burned 4 separate discs to rule out some kind of corruption or burn error. I burned one in OSX Lion 10.7.4 and 3 on my windows 7 pc.

    I tried holding "alt" instead and then navigating to the windows disc to boot. Same thing happens, blank blinking unresponsive cursor. I also tried going to the EFI disc which actually brings up a menu (after saying "error prefix is not set") asking if I want to install ubuntu, test for errors or partition. All three options lead me to an unresponsive blank screen (some without cursors).

    I downloaded and installed rEFIt and if I hold "alt" on startup a linux penguin (Boot Linux from CD) appears in my boot options, along with the apple boot, and two others that I'm not sure of: "Boot EFI\boto\bootx64.efi from" and "Boot Legacy OS from". The "Boot Linux from CD" just takes me to the blank blinking cursor screen; again, I left if for 10+ minutes and nothing.

    I heard that the detection of the graphics card might be a problem and that I need change to nomodeset, but I have tried pressing F6 in all of the boot menus listed above and no options appear.

    Does anyone have any other suggested routes or can you see what I might have done wrong?

  2. #2
    Join Date
    Nov 2007
    Beans
    156

    Re: Ubuntu 12.04 on macbook pro9,2

    When you boot in EFI mode a Grub 2 menu appears. The method for adding boot parameters (such as nomodeset) is different in Grub 2. See this post:

    http://askubuntu.com/questions/19486...boot-parameter

    In step 2 you can select 'Install Ubuntu', since there's only one kernel on the CD.

  3. #3
    Join Date
    Feb 2007
    Location
    Minnesota, USA
    Beans
    80
    Distro
    Ubuntu 13.10 Saucy Salamander

    Re: Ubuntu 12.04 on macbook pro9,2

    I couldn't get the stock 12.04 iso to boot on my MacBookPro6,1 I had to use the amd64+mac iso from the day just before launch. I think you can still find links to it in the forums. I'm still seeding

  4. #4
    Join Date
    Jun 2012
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    16

    Re: Ubuntu 12.04 on macbook pro9,2

    Quote Originally Posted by davidryderuk View Post
    When you boot in EFI mode a Grub 2 menu appears. The method for adding boot parameters (such as nomodeset) is different in Grub 2. See this post:

    http://askubuntu.com/questions/19486...boot-parameter

    In step 2 you can select 'Install Ubuntu', since there's only one kernel on the CD.
    Ok, so now I am at a screen entitled "GNU GRUB version 1.99-21ubuntu3" and commands:

    setparams "Install Ubuntu'

    set gfxpayload-keep
    linux /casper/vmlinuz file=/cdrom/preseed\ubuntu.seed boot=casper only-ubiquity quiet splash --
    initrd /casper/intird.lz
    where should I put the nomodeset parameter? I tried typing it immediately before and after "quiet splash", and at the end of the line, and hit F10 and each time the screen went blank and nothing happened (left it for approx 5 mins each time).
    Last edited by sodaa; June 30th, 2012 at 07:09 AM.

  5. #5
    Join Date
    Nov 2007
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    156

    Re: Ubuntu 12.04 on macbook pro9,2

    You can add the kernel parameter after "quiet splash".

    If that doesn't work you might want to try removing "quiet splash" from the list of parameters. That should cause Ubuntu to boot in text mode. It might help to see the last few lines printed off before the crash.

    Splash Screen + nomodeset:

    Code:
    linux /casper/vmlinuz file=/cdrom/preseed\ubuntu.seed boot=casper only-ubiquity quiet splash nomodeset --
    Text Mode + nomodeset:

    Code:
    linux /casper/vmlinuz file=/cdrom/preseed\ubuntu.seed boot=casper only-ubiquity nomodeset --

  6. #6
    Join Date
    Jun 2012
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    16

    Re: Ubuntu 12.04 on macbook pro9,2

    Still just goes straight to a blank screen, nothing is printed on screen after I hit F10, with both methods (I actually tried these by accident before; I was trying all kinds of combinations).

    If I tried installing an earlier version of ubuntu like lael said, can I just upgrade to 12.04 from within ubuntu and have exactly the same OS?

  7. #7
    Join Date
    Nov 2007
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    156

    Re: Ubuntu 12.04 on macbook pro9,2

    You could upgrade from an earlier version of Ubuntu, although you might have problems with individual applications. It sounded like lael was suggesting installing from the amd64+mac variant of Ubuntu though. I'm not sure why it has to be from the day before Ubuntu's release.

    http://cdimage.ubuntu.com/releases/1...-amd64+mac.iso

    Have you tried booting from USB? You can install Unetbootin in OS X, and use it to create a USB version of the install disk. You have to use the 64-bit version of Ubuntu. It won't work with the 32-bit or the amd64+mac version.

    I found link describing some of the differences between booting in EFI mode (Selecting EFI Disk) and BIOS emulation mode (Selecting Windows Disk).

    https://help.ubuntu.com/community/UEFIBooting
    Last edited by davidryderuk; June 30th, 2012 at 08:29 AM.

  8. #8
    Join Date
    Nov 2007
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    156

    Re: Ubuntu 12.04 on macbook pro9,2

    I guess when installing with EFI mode (from the CD or using USB), you have to be aware of possible firmware corruption.

    Caution for Mac owners

    From Ubuntu 11.04 onwards (x86_64 only), the ISO CD supports UEFI booting and the Ubuntu installer will try to set up the bootloader for (U)EFI boot. But the installer formats the EFI System Partition to FAT16 (even if the filesystem is non-empty) and also uses efibootmgr, therefore Intel Macs may fail to boot due to corrupted firmware. This feature is not recommended on Mac models because it can corrupt the firmware. You will need to reflash the firmware to repair it.

    On Macs use only the Mac alternate ISO CD

  9. #9
    Join Date
    Jun 2012
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    16

    Re: Ubuntu 12.04 on macbook pro9,2

    The desktop amd64 + mac iso doesn't seem bring up an EFI boot option when I hold "alt" on boot, just the windows boot which leads me to the blank page/blinking cursor. The standard version I downloaded from the ubuntu site, brings up both the windows and EFI boot options. Really not sure what to do at this stage.

  10. #10
    Join Date
    Nov 2007
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    156

    Re: Ubuntu 12.04 on macbook pro9,2

    The desktop amd64 + mac iso doesn't seem bring up an EFI boot option when I hold "alt" on boot, just the windows boot which leads me to the blank page/blinking cursor.
    That sounds about right. The amd64+mac CD is just like the normal CD, except that it only supports BIOS booting (Windows Boot).

    http://askubuntu.com/questions/37999...-mac-iso-image

    Have you tried USB booting, with Unetbootin and the amd64.iso?

    I found the following threads about your computer (or similar).

    https://bugzilla.redhat.com/show_bug.cgi?id=834076
    http://forums.fedoraforum.org/showthread.php?t=281038
    https://bbs.archlinux.org/viewtopic.php?id=144089
    http://ubuntuforums.org/showthread.php?t=2007444

    A lot of the solutions seem a bit messy. The most general fix is probably adding the noapic parameter. Being quite a general fix it'll probably have some undesirable side effects. You might see a better solution come along if you watch the bug report.

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