Questions tagged [grub]

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Dual boot (old model) MacBookPro9,2 running new macOS (APFS) without rEFInd

Is it even possible to dual boot macOS without using rEFInd? In my system, I have a EFI, APFS and Ext4 partitions storing ESP, macOS (either Mojave or Sierra) and Debian. I used to be able to dual-...
1
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1answer
28 views

Remove GRUB from macOS Catalina

So I installed Ubuntu on an external disk via my MacBook Pro 2016 with a USB flash. Now whenever I try installing another Linux distro such as Pop_OS I see the GRUB loader complaining about a bunch of ...
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0answers
25 views

GRUB : if exists /dev/sdb else /dev/sda

For unfathomable reasons, the Touchpad and Keyboard of my MacBook Pro Retina early 2015 stopped working on MacOs Catalina. Using an external keyboard/mouse, I erased the internal disk and installed ...
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0answers
88 views

MacBook Boots into GNU Grub after installing ElementaryOS on external Hard drive

I have an external SSD (240GB) which I wanted to partition in order to install a portable version of Linux on it and have the option of running it from any Computer. When I plug the SSD in and start ...
0
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0answers
15 views

MBP Not Booting After Attempted Deletion of Ubuntu Partition

I have a MBP (late 2011 I believe, running 10.12) that I had setup to run macOS and Ubuntu. I am using rEFId. I don't use Ubuntu much so I went to delete the partition last night. When I did that, ...
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0answers
21 views

Boot order on OS X - How to be prompted with a menu with a default timeout?

Recently I installed Ubuntu on an USB drive, using my Mac Book Air. Since then the following occurs from boot up: If the USB is inserted, the OS on the USB is loaded. If the USB is not inserted, and ...
3
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1answer
130 views

*Complete* recipe for installing single-boot Linux

In this question I summarize a complete recipe for installing single-boot (this should be simple!) Ubuntu 18.04 LTS on a (possibly older) Mac Mini, iMac, or MacBook. But it has an error. If you are ...
1
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1answer
45 views

Can't access Recovery Mode (2011 Mac Mini)

I was gifted a 2011 Mac Mini and I decided to try and get the thing up and running with a recent enough version of MacOS. When I turned the thing on, I was greeted with a fast boot to grub, indicating ...
0
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1answer
87 views

Ubuntu not booting after cloning (OSX and Kali)

the task was too simple - I had a 256gb ssd with OSX (apfs) and Kali (osx booted with Alt pressing and Kali booting on default - I suspect GRUB was operating). I think there was a problem after ...
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0answers
296 views

Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF on Macbook Air; gpt add error

[Solved] I recently installed Kali Linux onto my MacBook Air 2015, and shortly after, realized that I needed to install Refind to get the full functionality. I deleted the partition, which is 20 Gb, ...
3
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1answer
3k views

Unwanted GRUB on macOS High Sierra

While installing Linux Mint 19 to a USB, I managed to get GRUB installed on my Mac hard drive. I can still boot to the macOS if I hold the Option key down. How can I remove GRUB and revert my Mac ...
1
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1answer
36 views

how to eject a DVD from a MacBook?

On an older Macbook from 2008 the DVD is stuck in the tray. Unfortunately, GRUB isn't booting properly so there's no OS. How can I eject the disk? It's a slot loaded disk, so no button or tray.
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1answer
2k views

Broken MacBook boots grub

I had installed a Ubuntu partition on my Mac, but last night the keyboard broke, so I was trying to reinstall Mac OS from the recovery mode and accidentally wrongly deleted all the partitions my Mac ...
8
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1answer
219 views

Grub2 Reboot ISO - Similar process for Mac OS Bootloader

I'd like to add a menu entry to the MAC OS Bootloader for a Linux ISO that resides on the harddrive. I am not looking to install a 3rd party bootloader, but do this with the bootloader MAC uses by ...
3
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2answers
5k views

Dual boot: I cannot boot in OS-X, after installing Linux (Debian)

After swapping the DVD drive with an SSD, I installed Debian Linux on it. I left the original SSD with OS-X untouched. After a reboot, OS-X (El Capitan) started. After another reboot, pressing ...
1
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1answer
2k views

Triple Boot Mac OS Sierra, Windows 10, Kali Linux 2.0 On A Macbook Pro

I have successfully dual booted both Window and Mac OS as well as Kali and Mac OS. The problem is installing Kali once I have dual boot Windows and Mac OS. I have tried several tutorials, and the one ...
2
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0answers
75 views

MacBook Pro : Dual-boot

I need to dual boot on CleanOS on a MacBook Pro I installed ClearOS but at the boot I only boot on the Grub, when Command key is pressed I also have OSX I tried to install rEFIt, but without success,...
1
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2answers
1k views

rEFInd does not show macOS boot icon

I have a MacBook Pro 15" late 2015, on whom I created two partitions on the main SSD, on one there is the macOS, and on the other I installed Linux Mint. As boot manager I installed rEFInd. ...
0
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1answer
896 views

Grub on Mac via EFI (Linux: /dev/sda1 Darwin: /dev/disk0s1) (MacBook Pro Early 2011 if it matters)

I installed Debian Jessie 8.5 on my MacBook Pro over my old Bootcamp partition (Windows 8.1). I deleted the bootcamp partition with the partition manager in the Debian Installer and created two new ...
3
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1answer
3k views

To Rescue Nonbooting OS X with Grub?

I had Refind bootloader in Macbook Air 2013-mid. My disk has OSX and broken Ubuntu. Ubuntu messed up my bootloader such that it starts only. I cannot go to grub/refind by pressing ALT, ALT-R, ... My ...
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0answers
1k views

refind : No bootable device (Mac and linux)

I just make dual boot on my macbook pro with linux fedora. when I enter linux on refind menu, it says "no bootable device -- insert boot disk and press any key". I know this question has been ...
6
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3answers
16k views

GRUB 2 error – “fb: switching to radeondrmfb from EFI VGA”

Whenever I try to boot Arch, Mint or Debian Linux from a USB stick using GRUB 2 on my Mac with compatibility mode, it freezes on this error (given in the question title). I've tried every available, ...
2
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0answers
619 views

Broke Boot Camp while trying to get a triple boot

I'm running Yosemite, up-to-date on a mid-2012 MacBook Pro. I removed the optical drive, moved my internal HDD to its location and placed a new SSD in the original HDD's location. This has been great ...
3
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1answer
2k views

GRUB overwritten Refind/Mac bootloader - Unable to boot

Getting desperate here, need some help background: I have a late 2012 imac, running OS X 10.10 Also i had Xubuntu & OpenSuse running as secondary OSs I was using refind & everything was ...
2
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1answer
6k views

Dual boot Ubuntu 14.04 on a MacBook Pro

so after a few hours of Google searching and too many headaches with a broken GPT, I've turned here. I have a 2012 MacBook Pro (9,2) that I want to dualboot OS X 10.9 and Ubuntu 14.04 on. I've read ...
1
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0answers
482 views

Replacing OS X with Linux or Unix, and making the switch to Tiling Window Managers

I have a Macbook Pro 8,2 and really want to make the switch to something a little less stubborn and a little more flexible than the proprietary Mac OS X. I am a bit frustrated with MacPorts lately and ...
8
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1answer
11k views

Ubuntu on Mac (dual-boot). Where do I install GRUB?

When installing Ubuntu, I choose to install GRUB on a partition other than: /dev/sda i.e. /dev/disk0 as this is stated in various tutorials. However, this way I end up with the error message: ...