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It depends on which version of the beta was the first you installed. Early betas converted Fusion Drives to APFS, but later betas did not.

You can pretty well assume that your Fusion was still on HFS+ - never converted to APFS. If it was on APFS, the GM installer would have prevented the install, and given you a link to the procedure for converting back to HFS+.

Paging captain obvious. LOL. Of course, if your drive says it's HFS and you're on High Sierra, you didn't install an affected build. If you waited for GM, then there is no issue here.
 
What sucks is having to go back to HFS+

It sucks to convert production machine to beta testing machine, this is probably Apple fault, it underestimate how not obsious is for some consumer. but also...it's easier to blame someone else than learn something from it.
Spending hundreds of characters? Had you READ my characters, you'd have known the answer.

No, I'm saying why release a product now that doesn't support the vast majority of iMac sold in the last 5 years. Why not make it work as promised before release? I get rushing phones because it's a competitive landscape, but not operating systems.

Why SSD user should wait? Why should everyone wait Metal 2, if you want to wait APFS you are free to do so, what if you need external GPU? is choice bad al of the sudden?
 
If they had stopped selling regular HDD's and Fusion Drives 4-5 years ago, I would be okay with this. But they are still selling iMac's with regular HDD and Fusion Drives, selling new Mac's that cannot run the latest OS X is unacceptable.
 
It sucks to convert production machine to beta testing machine, this is probably Apple fault, it underestimate how not obsious is for some consumer. but also...it's easier to blame someone else than learn something from it.

I'm not sure what you're trying to say here. Apple created the issue when they opened the beta program to the public. While yes, buried in their terms of the beta program, it recommends not using a day to day machine, when Apple chose to open it to non-developers, they need to be a bit more hands on and explain what each beta does, what it means for the user, etc. Most who are on the public beta aren't tech-saavy people, and don't understand what they're getting into. Apple should realize this and make the PBs a bit more consumer-facing, or just eliminate the public beta program. I see far too many complaints on here with beta releases by PB testers that features don't work or their apps don't work.
 
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Completely agree! Same issue here. Somewhat oddly however I am running the GM on iMac with a 3 TB fusion with APFS. The reason is that I had to do a recovery system install and it does install the GM and doesn’t make you wipe your system. Not sure exactly how this is the case.
How did you do that "recovery system install"? I have a Mac mini with a Fusion Drive and did the beta APFS upgrade. Would be interested in a way forward without restarting back at HFS+, is possible.
 
With every move Apple makes in the past couple of years, they are bringing me closer and closer to the day when I completely leave the ecosystem, both for computers and smartphones.

So you're saying you'd rather they push APFS onto fusion drives before it's ready and with possible bugs that make you lose data?

Oh HELL no. I have a lot of gripes with Apple lately but this isn't one of them. I applaud them for being conservative with filesystem changes because VERY BAD THINGS happen when the filesystem has bugs.

You should be praising them for this, not shunning.
 
If they had stopped selling regular HDD's and Fusion Drives 4-5 years ago, I would be okay with this. But they are still selling iMac's with regular HDD and Fusion Drives, selling new Mac's that cannot run the latest OS X is unacceptable.

Jesus I don't understand why people comment without bothering to read the article. Everybody will still be able to upgrade to High Sierra, but people with fusion drives will not be able to take advantage of the new file system for the time being.
 
so... because my imac is damned hard to get open, and get to get the the drive area, it sure would be nice if apple waved the labor part of the drive replacement. I would be relatively happy buying an apple SSD, if they would put it in free of charge.
 
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Well, just another year of skipping macOS upgrades. Didn't upgrade to Sierra, and doesn't look like I'll upgrade to High Sierra. There really just doesn't seem to be any pull for me to upgrade. My MBP is SSD, but their features seem like mostly fluff. Thank goodness they don't harass me to upgrade like they do on my iPhone.

Converting the file system to a system optimized for your SSD is "fluff?" If you do change your mind, you'll end up with more Available space on your SSD, and improved speed - those are some of the key benefits of APFS.

This particular issue with APFS is configuration-specific. Since you don't have that configuration, you don't have to worry. All iOS devices on the current version of iOS were converted to and have been running APFS without problem, and (apparently) APFS has been working just fine for SSD-equipped beta testers as well. You're welcome to play wait-and-see, of course.
 
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If they had stopped selling regular HDD's and Fusion Drives 4-5 years ago, I would be okay with this. But they are still selling iMac's with regular HDD and Fusion Drives, selling new Mac's that cannot run the latest OS X is unacceptable.

Why is it unacceptable? One of the core benefits of APFS is it is designed to take advantages technology improvements in SSD. The fusion drive has spinning media in it.
 
You've got a similar setup to me, except I have a 512GB Samsung SSD. My drive was converted to APFS during the upgrade. I upgraded yesterday.

Appreciate the reply. Will see what next week brings, although your experience bodes well. My home computing needs have changed radically since 2011 when i boughjt the MBP, and my daily driver is now an iPad Pro so not getting APFS day one (or even at all) isn’t the end of the world. Would still be next ve to have one last hurrah of a macOS upgrade before I say goodbye to the old workhorse.
 
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Let me tell you something. The process to get my headless Mac Mini back to HFS was a gigantic pile of elephant dung of a process. MAJOR FAIL Apple

You are the only one at fault. You made the decision to install a beta software that did not promise it would be the final build or have all features available.

Woah. Came here to say that every iMac they currently sell in stores (non custom built orders) come with spinning or fusion drives. So when this comes out every floor model will not be taking advantage of the one huge speed boost they demo'd and are pitching as the main reason for High Sierra's existence.

There is no major speed boost with APFS solely, especially on hard drives/fusion drive. Sorry but even people who has APFS won't notice that much. I have it and I didn't notice any major differences.

It will take a few years before we start to see true optimizations with APFS, Apple still has to optimize the rest of the subsystems to benefit from APFS. That is if Apple didn't choose to neglect macOS.

So happy I went through the pain-staking trouble of upgrading my 2011 27" iMac to a pure 480GB SSD. This will put my old iMac even further ahead.

APFS not working on even Fusion drives mean going forward, the single most important priority is getting the pure-SSD BTO should I ever upgrade from my 2011 iMac.

I think it's time Apple make a 256GB SSD stock iMac.

While I agree Apple should go SSDs in all Macs from now on; no one has said APFS won't come to Fusion Drives. The other issue is there is a shortage of NANDs that is causing the SSD price to go up now. It's why iPad Pros also went up 50$ across the board.


Are you kidding?! My iMac is only 2 years old. I opted for the Fusion drive and now Apple is [temporarily] rendering it un-upgradable! Wow, seems like someone at Apple just isn't working hard enough.

You bought iMac 2 years ago knowing APFS was coming? I find that hard to believe.

High Sierra will run on your iMac and APFS is coming in a future update when it is optimized for fusion drives. There is a lot of complexity to supporting Fusion drive has it is not your typical SSHD hybrid setup and whatever issues they're having, is likely related to both fusion/hard drives.
 
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I'm not sure what you're trying to say here. Apple created the issue when they opened the beta program to the public. While yes, buried in their terms of the beta program, it recommends not using a day to day machine, when Apple chose to open it to non-developers, they need to be a bit more hands on and explain what each beta does, what it means for the user, etc. Most who are on the public beta aren't tech-saavy people, and don't understand what they're getting into. Apple should realize this and make the PBs a bit more consumer-facing, or just eliminate the public beta program. I see far too many complaints on here with beta releases by PB testers that features don't work or their apps don't work.

Maybe you are not used to IT world, but beta are not supported and for testing purpose only with any OS software company, SAME with windows/linux, Apple was blamed to take advantage of the developer program to force users to pay for betas, now it's blamed for releasing beta.
Furthermore a production machine should always run regular back-up, if you don't know what a production enviroment is just google it!

Your argument is plain absurb, to mee...you are just crying out loud because you don't want to wait for your new toy....which you probably don't even know what exacly is and does
 
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If they had stopped selling regular HDD's and Fusion Drives 4-5 years ago, I would be okay with this. But they are still selling iMac's with regular HDD and Fusion Drives, selling new Mac's that cannot run the latest OS X is unacceptable.
Um what? Those Macs can still upgrade. You just don't get the file system right away..Please read the article.
 
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"Apple says APFS will not be supported on Fusion Drives "in the initial release of macOS High Sierra," which suggests support could be added for Fusion Drives at a later date after lingering bugs are worked out."

I read the article, but it says they hope they will gain support, not that support was confirmed to happen.
 
Paging captain obvious. LOL. Of course, if your drive says it's HFS and you're on High Sierra, you didn't install an affected build. If you waited for GM, then there is no issue here.

The OP said he wasn't able to access the machine to confirm whether he was or was not on HFS+. I figured more than one person who wasn't sure of their machine's status might benefit from knowing the "obvious."

Considering the kind of questions and comments I've been seeing in this thread, we can't trust that what's obvious to you or me is obvious to everyone.
 
You are the only one at fault. You made the decision to install a beta software that did not promise it would be the final build or have all features available.



There is no major speed boost with APFS solely, especially on hard drives/fusion drive. Sorry but even people who has APFS won't notice that much. I have it and I didn't notice any major differences.

It will take a few years before we start to see true optimizations with APFS, Apple still has to optimize the rest of the subsystems to benefit from APFS. That is if Apple didn't choose to neglect macOS.



While I agree Apple should go SSDs in all Macs from now on; no one has said APFS won't come to Fusion Drives. The other issue is there is a shortage of NANDs that is causing the SSD price to go up now. It's why iPad Pros also went up 50$ across the board.




You bought iMac 2 years ago knowing APFS was coming? I find that hard to believe.

High Sierra will run on your iMac and APFS is coming in a future update when it is optimized for fusion drives. There is a lot of complexity to supporting Fusion drive has it is not your typical SSHD hybrid setup and whatever issues they're having, is likely related to both fusion/hard drives.

Boy you sure love to trash on everyone who got excited because Apple announced a feature then pulled the rug on it last minute. They clearly said ALL iMac in the last 5 years would have the features. Apple did the same thing with single sign on Cable Providers, and P2P Apple Pay too... Sounds a lot like your defense is something that an Apple employee would post. Maybe Apple should stop announcing features that are just concepts and wait until they have a better handle on them before announcing? Oh guess the stock might drop if they appear to not have something new. Sounds like all these issues are just bad management at Apple.
 
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"Apple says APFS will not be supported on Fusion Drives "in the initial release of macOS High Sierra," which suggests support could be added for Fusion Drives at a later date after lingering bugs are worked out."

I read the article, but it says they hope they will gain support, not that support was confirmed to happen.
And yet no where does it state you can't upgrade to the OS if your drive is not supported for APFS.
 
How did you do that "recovery system install"? I have a Mac mini with a Fusion Drive and did the beta APFS upgrade. Would be interested in a way forward without restarting back at HFS+, is possible.

Did the Command-R option linked here: https://support.apple.com/en-us/HT204904

And per my About this Mac I'm running 17A362A (the GM Candidate) and per Disk Utility I'm on APFS.

Not sure what will happen on September 25 when we'll have a true GM. But wasn't ready to wipe and start over yet.
 
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Considering the kind of questions and comments I've been seeing in this thread, we can't trust that what's obvious to you or me is obvious to everyone.

This is true. I keep forgetting. Once Apple opened the beta program to public beta users, we knew this sort of thing was going to become commonplace. If I had a dollar for every public beta user in the iOS forum who said "why don't my apps work in iOS 11?" I'd be rich rich rich. Do people not realize the betas are primarily for app developers to re-write their apps for the OS? And when they release the betas, it's the first time app developers are getting it too... ugh.
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Maybe you are not used to IT world, but beta are not supported and for testing purpose only with any OS software company, SAME with windows/linux, Apple was blamed to take advantage of the developer program to force users to pay for betas, now it's blamed for releasing beta.
Furthermore a production machine should always run regular back-up, if you don't know what a production enviroment is just google it!

Your argument is plain absurb, to mee...you are just crying out loud because you don't want to wait for your new toy....which you probably don't even know what exacly is and does

I know what a beta does. I've been a paid developer for years. You might want to use google translate on my comments, as you clearly aren't understanding what I've typed.
 
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Gonna be a bunch of people upset for no reason other than they don't get something others got. They have no idea the benefits this change brings but damned if they'll let that lack of knowledge stop them from complaining!

How long do you expect Apple to support two file systems? This could be a mark of death for all Macs that don't have pure flash storage.

Thankfully the Mac mini and iMac can be upgraded to full flash by simply pulling the spinning drive and putting a SATA3 SSD in the slot to compliment the existing SSD. However what a pain in the butt for a feature that seemed to work well enough in beta to allow people to make the format conversion.
 
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