Results 1 to 3 of 3

Thread: MacBook Pro: Windows 10 unable to boot after installing MATE 18.04.2 LTS

  1. #1
    Join Date
    May 2019
    Beans
    1

    MacBook Pro: Windows 10 unable to boot after installing MATE 18.04.2 LTS

    Hello there. I tried searching around the forums for a bit and also found seemingly no dupes with the editor's 'check if posted' feature, so here I go.

    I own a mid-2012 MacBook Pro ("9,2"?) currently housing macOS Mojave 10.14.4 and Windows 10 Pro (prior to this installation of Ubuntu MATE 18.04.2 LTS), and the two worked just fine. However, after I tried installing Ubuntu MATE by referring to this answer on triple-booting (except that it's "HFS" against my current "APFS", so I kinda followed suit), I ended up with four choices in the Startup Manager from left to right: "Windows, EFI Boot, MACINTOSH HD, EFI Boot". Choosing the former EFI Boot (not bootable USB drive) instantly restarts my laptop, while the latter EFI Boot is the Ubuntu MATE I had just installed and added an icon on.

    When I choose the Windows one, the whole thing gets stuck at the "Missing operating system" message, but my macOS and Ubuntu seem to work fine. I have tried Boot-Repair's 'Recommended Repair', and what I got was this message:
    https://imgur.com/a/n7BlWR8 (NOTE: vertically long)

    now I have GParted installed in my Ubuntu, but it somehow reads my laptop's HDD capacity as 465.76 GB, as opposed to the actual 500 GB. Putting that 34 GB difference aside, I don't know where to go from there since I'm not knowledgeable with disk/partition stuffs and this is practically my first time using Ubuntu. I had screwed up big time trying to get the vanilla (non-flavor) Ubuntu coexist in my laptop too, so I started over and I'd like to feel much more assured this time. How do I get rid of my Windows' "missing operating system" message from this point, and be able to get all three OS'es boot up perfectly anytime I want through MacBook's Start-up Manager? Feedback is much appreciated. Thanks for your attention.

    -------------------------------

    here is the Pastebin report generated by Boot-Repair:
    http://paste.ubuntu.com/p/gr9H3pBMZF/

    and here is a link to a few photos of the disk's insides and whatnot in macOS's Terminal, including descriptions on each photo:
    https://imgur.com/a/ysqfjmQ

    if there's anything inappropriate/incomplete in this post, please let me know in this thread and I'll edit/delete it as soon as I get on here again. Hopefully moving won't be necessary...

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,807
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: MacBook Pro: Windows 10 unable to boot after installing MATE 18.04.2 LTS

    Thread moved to Apple Hardware Users a more appropriate sub-forum.

  3. #3
    Join Date
    Jun 2009
    Location
    SW Forida
    Beans
    Hidden!
    Distro
    Kubuntu

    Re: MacBook Pro: Windows 10 unable to boot after installing MATE 18.04.2 LTS

    Do not know Mac, but some info to get you started.

    http://en.wikipedia.org/wiki/Gibibyte
    http://en.wikipedia.org/wiki/Gigabyte
    It's the difference between gigabytes (GB) and gibibytes (GiB). One gigabyte = 1000 x 1000 x 1000 bytes (base 10). One gibibyte = 1024 x 1024 x 1024 bytes (base 2).

    Also in Linux the default is to reserve 5% of the diskspace for the superuser (this can be adjusted using tune2fs -m).
    sudo tune2fs -l /dev/sda3
    also shows settings of mount count & how often it will run fsck on reboots
    see:
    man tune2fs

    It looks like you have this which really is not recommended.
    http://www.rodsbooks.com/gdisk/hybrid.html
    It was only used for old installs of Windows that only booted in BIOS mode from MBR, since Apple uses EFI/UEFI and gpt partitioning.
    But Windows has been UEFI since 2012 and release of Windows 8. Even Windows 7 can be installed in UEFI boot mode.

    EFI-Booting Ubuntu on a Mac
    http://www.rodsbooks.com/ubuntu-efi/
    Boot Windows from Mac with UEFI. Long thread 2009 thru 2014
    http://forums.macrumors.com/showthread.php?t=696523
    Dual-boot OS X 10.8.4 / Ubuntu 12.04 LTS 64 bits on MacBookPro9,1
    http://ubuntuforums.org/showthread.php?t=2167446
    https://help.ubuntu.com/community/MacBookPro
    http://lifehacker.com/5934942/how-to...apple-hardware
    Caution on UEFI boot Mac
    http://ubuntuforums.org/showthread.php?t=2012588
    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.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •