Questions tagged [grub]

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1answer
964 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 ...
0
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1answer
24 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 ...
2
votes
1answer
674 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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0answers
120 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, ...
0
votes
1answer
784 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 ...
4
votes
3answers
13k 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, ...
1
vote
1answer
31 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.
3
votes
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 ...
3
votes
0answers
109 views

Grub2 Reboot ISO - Similar process for Mac OS Bootloader

First, let me say I'm new to Mac... Just helping a friend with a fried OS by re-installing Mac. When I do data recovery, I usually load a LiveISO via USB, but since I may be helping them again, I ...
3
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2answers
2k 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
vote
2answers
761 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. ...
1
vote
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
votes
0answers
69 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,...
3
votes
1answer
2k 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 ...
1
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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 ...
2
votes
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 ...
2
votes
0answers
552 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 ...
1
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0answers
477 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
votes
1answer
10k 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: ...