Linux / Hybrid MBR Setup Broke Boot Camp

I was typing a detailed reply, but lost it and could not recover it.

Long story short, don't triple boot your computer. People always regret doing it as they inevitably run out of storage space on one or more partitions. Whenever users try to "fix" these issues, they end up breaking one or more operating systems and losing access to their data (sometimes just temporarily). Plus dual/triple booting is always a pain when switching between operating systems. It is much more convenient to use and access an alternate OS from a VM which is less risky to a Mac. Unless you need the extra memory/performance of installing an OS to bare metal a VM is always the better and safer choice (even for Windows).

Linux bootloaders are really simple as they are stored on the hidden EFI/ESP partition usually in a folder with the distribution's name, but sometimes it is necessary to use a generic "boot" folder instead because Apple's firmware is sometimes unable to detect a Linux bootloader otherwise. Once you have modified the partitions, you broke the Windows bootloader since the Windows bootloader has no way of knowing where the Windows' system files have been moved. You may as well remove the "microsoft" or "windows" folders from the EFI/ESP partition and attempt to restore the partitions to the main macOS Container again (you should first try doing this using BootCamp Assistant, but if that fails you can try Disk Utility although from what I've read on these forums that will likely fail). So in the end you will most likely find it easiest and fastest to just erase the entire physical drive and start all over again -- which is why I initially said dual/triple booting should be avoided whenever possible unless using the OS in a VM is not an option for some reason). Even if someone like @LonerT is here to assist you, the process will take lots of time with no guarantee of success.

Perhaps it is possible to use the Windows installer to help fix the Window's boot issues, but even on a standard PC this can be extremely difficult. I highly recommend you make sure to have a good backup before you do anything else since it can be very easy to lose data from each OS when you attempt to fix partition issues and boot issues. If you want to fix your current setup without starting over, then you may have to learn on your own how to do it by reading lots of forum posts since @LonerT is one of the few contributors on these forums who really understands the lower level details of macOS partitions/Containers/volumes and Windows BootCamp.

Good luck.

You can't have 3 partitions if using Boot Camp. Install Linux using a virtual machine either in your MacOS or in your Windows OS.

These Global Help Communities are visited by millions and responded to by thousands world-wide. Getting a response from an individual will likely not happen.

Alex Morello wrote:

Loner T., I choose you! 🙌🏻

These are open user-to-user help communities. Anyone can respond. Obviously you don't believe what I said so I will step aside. Best of luck and hopefully someone will stop by to provide an answer more to your liking.

Ive been waiting Loner T for about a month =(

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