No Boot Camp on Mojave??? ***?

tineketover wrote:

Is there a chance that Apple will fix this issue eventually as it did when the 3 TB drive was first introduced on the late 2012 iMac, or are there incompatibilities that cannot be fixed?

The 2012 Macs are preUEFI. The first UEFI Macs are late 2013. preUEFI Macs use a Hybrid MBR to mimic a BIOS disk layout, which has two limitations

• 32-bit numbers for partition sizes, which limits the size to 2TB
• Four (4) entries in an MBR

On a 3TB disk, you can have two layouts

• Sandwich - macOS(Part1)+Windows(<1TB)+macOS(Part2) - This uses CoreStorage. Not supported on APFS, because there is no equivalent partitioning methodology. APFS does not support more than 2 disk partitions.
• Non-Sandwich - macOS (<2TB)+Windows>1TB+). This can be supported on APFS and is used on non-3TB disks and 3TB Fusion disks. Apple chose not to pursue this path, but a user is free to choose this method, but BC Assistant is not designed to support this, which implies manual partitioning.

tineketover wrote:

It is certainly bad, as I thought I had a future proof system, especially with the 3 TB replacement drive a few years ago.

See dialabrain's 'Future-Proof' comment. Apple would be out of business if they did not sell new 'features' to you.

tineketover wrote:

It would be good to explain what APFS conversion entails (what does it mean) as this apparently interferes with bootcamp and time machine.

It depends on what you call 'interfers'. 😉

Prepare for APFS in macOS High Sierra - Apple Support

See if your Mac shares space across APFS volumes in System Information - Apple Support

About Time Machine local snapshots - Apple Support

About Apple File System | Apple Developer Documentation

https://developer.apple.com/support/apple-file-system/Apple-File-System-Referenc e.pdf

If you need more reading material, please ask.

I have a Mac Pro mid 2012 and Boot Camp was working fine on High Sierra, I use Window 7 ultimate on a separate disk for gaming.

I have now installed Mojave v 10.14 and the Boot Camp assistant doesn't work any more.

I have this message.

My Window drive doesn't show on reboot with Alt key pressed, neither it appear's on system pref > Choose startup disk.

The only thing that hase changed is Mac OS: (High Sierra -> Mojave), so I think Mojave is the only culprit !

cd

As I have already say on this forum, I don't think the problem is the drive. I have installed Windows 7 on a separate disk and Boot Camp was ok under High Sierra, I use TUXERA to gain access to the Windows drive from Mac OS.

Still waiting for a fix to Mojave from Apple ...

cd

You're missing the point - I can't install Mojave without erasing my BootCamp partition. Period. And even if I back it up, I can't use BootCamp with Mohave on my mac. At all. Period.

From Apple/s Support Docs:

BootCamp Installer will not run on my particular mac under Mojave. So it's literally BoorCamp or Mojave, either/or.

Sorry you're ticked off. My guess is the drive in a 2012 iMac and the one in a 2018 iMac aren't the same. It's no doubt a hardware issue and I can't see Apple retrofitting 6 year old iMac's drives so a few people can run Boot Camp. I could be wrong. In the meantime you could run Windows as a virtual machine.

It's fairly asinine that Apple couldn't accommodate this specific configuration. If I were you, I'd stick with High Sierra. I'm running a Mac Pro 5,1 with High Sierra and I've seen too many horror stories today that would directly affect me, most notably the fact that my wireless card would be useless after the "upgrade." Nope, no thanks.

I feel you so much. I got the late 2012 configuration with highest specs so it can endure the next decade. It still does. At the same time, I use bootcamp for specific windows stuff (Streaming, some games, some windows specific apps) and I need to keep bootcamp for this.

So. Seems like there's not gonna be a Mojave Update for me. Sad. 😟

Seems odd that 3TB seems to be a magic number,

be it HDD or Fusion, for those trying to install Mojave on such

systems that have a Bootcamp installation are having problems

of some sort or another.

No solution, just an observation.

This is very irritating. I have a 3TB 27inch machine which is late 2013 so according to Apple's blurb this should be OK. But, as others have reported, it's only when you work through the update that you are told BootCamp will not be supported. That's very poor. Why not say it upfront? I don't want to lose my Windows partition for just one simulation -FSX.

Like others, when I bought this system I thought i was future proof and indeed Apple advised me to buy it for that reason. It seems it's not.

Disappointing!

jamesfromweybridge wrote:

Like others, when I bought this system I thought i was future proof and indeed Apple advised me to buy it for that reason.

There's no such thing as "future proof". I seriously doubt anyone from Apple would say such a thing.

OK. Perhaps my language was a little looser than it should have been. But I recall the conversation clearly - I bought directly from Apple in March 2014 - and I was assured that the system was the best option for someone who wanted a machine which would last as long as possible as new operating systems came out. Four and a half years doesn't seem very long to my bank account!

Thanks. In fact it was Blurb who alerted me to this. Of course this is the wrong thread but I’m relieved now that I couldn’t upgrade. I’m working on a 250 page book so it would have been a little unfortunate to say the least!