![]() If desired, use the Boot Camp Assistant to install Windows 10.The typical procedure to install a macOS (OS X) and Ubuntu dual boot is as follows. This conflict can be resolved by having two EFI partitions. Installing a macOS/Windows/Ubuntu triple boot on your Mac does create a conflict in that both Ubuntu and Windows both install a file in the original EFI partition at /EFI/Boot/boot圆4.efi. According to Rod Smith (the current maintainer of the rEFInd Boot Manager), this file then transfers execution to the /EFI/ubuntu/grub64.efi file (GRUB), which can be used to boot Ubuntu. When the BOOX64.EFI file executes, the software changes the EFI settings to make Ubuntu the default operating system to boot. This file is an exact copy of the /EFI/ubuntu/shim圆4.efi file stored in the same volume. (You hold down the option key at startup to access to the Mac Startup Manager.) The Startup Manager instructions the boot loader in the firmware to boot using the file /EFI/BOOT/BOOX64.EFI file in the FAT32 formatted volume in the EFI partition. I will post my successful attempts below.īy default, Ubuntu can be accessed from the Mac Startup Manager by selecting the icon labeled EFI Boot. The ultimate goal : having a trial-boot by adding Windows on BootCamp. If I want to switch to Ubuntu, I'd like to select it from the boot menu. In other words : when I power on my Mac, I want my default OS to be MacOS. Formatting the hard drive to make it Mac-compatible (HFS, HFS+) via Ubuntu (through GParted for instance) is far from easy because the Mac packages aren't available: you have to search & install them.īasically I'm trying to have a dual-boot system (MacOS & Ubuntu) without affecting my EFI settings.If you delete the EFI settings (= EFI partition on your hard drive), your device cannot boot on this OS and often leads to a black screen or equivalent at startup. *The EFI settings are - simply put - what allows your device to boot on a given OS. When installing Ubuntu through a USB flashdrive via the mac boot menu, the Ubuntu installer has this annoying habit of replacing the original Mac EFI settings* with Ubuntu EFI settings*.Initially, I was aiming at dual-booting MacOS and Ubuntu on a Macbook Pro, which worked after few attempts but it had its major flaws : It then worked, and so far no more BSOD on my machine.I encountered this issue quite often and tested a few solutions so I hope this will help. Search and remove HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\AppleMNT.Search and remove HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\AppleHFS.Rename AppleHFS.sys & AppleMNT.sys to AppleHFS.sy_ & AppleMNT.sy_.Then, without rebooting, I removed the HFS+ Driver from Windows using the instructions at the bottom of So I did it again (delete partition, create partition, install Win, install Apple Boot Camp's software). To me it means that reading HFS+ or APFS files caused a problem. I read around that apple was putting APFS on High Sierra, but not if you have a Fusion Drive (this is my case). ![]() After Apple's Boot Camp's software install (in the running Windows) and rebooting, it BSOD'd again. I tried reinstalling Windows 8.1 from scratch by deleting the Boot Camp partition, creating it again, and installing Windows. It starts with the blue Windows logo, tries to load, then fails with a BSOD. I updated to High Sierra then Windows 8.1 was no longer not willing to boot. Not sure if it's relevant to your problem, but I had a similar experience.
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