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My APFS boot drive just corrupted itself under DP8 beyond Disk Utility and fsck ability to repair. Note that Disk Utility is not able to fully erase and repartition - at least under Sierra.
I used iPartition to clean things up and start over. Staying with HFSPlus for the volume for now.
 
Unless the official HS installer auto transfer HFS+ to APFS, I think I will also stay at HFS+ for a while. I may use APFS for testing purpose on my backup drive, but not the primary drive. However, I still doubt if the installer will do that on my system (mixed SSD / HDD, with HFS+ and NTFS partitions).

I look forward for its performance improvement, or better resistance to corruption, but I don't think it's stable enough at this moment. Also, most software still can't handle it properly yet, it may cause more trouble than benefit at this stage.
 
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I can't understand why anyone would want to be an early adopter of a new filesystem.

Here - take my data. Maybe let me take it back.

iOS has been running it for a while now just fine. I've had a few APFS bugs under High Sierra but nothing critical and they've been fixed in the betas.

If you're going to install High Sierra I'd convert to APFS. (Bombich notes it's required for SSDs.) Otherwise, High Sierra is just like any other OS. If you're scared of bugs wait until .1 or .2, just as if APFS was any other feature.

But I wouldn't hold on to HFS for more than six months. APFS is just much more snappy than HFS on machines I've converted. Most of the weird performance hiccups you'd see in Finder that you didn't see in other systems like Windows are gone.
 
My APFS boot drive just corrupted itself under DP8 beyond Disk Utility and fsck ability to repair. Note that Disk Utility is not able to fully erase and repartition - at least under Sierra.
I used iPartition to clean things up and start over. Staying with HFSPlus for the volume for now.
To make sure, I had clean OS I had to run the DP8 full installer. It converted to APFS with no option otherwise.
 
To make sure, I had clean OS I had to run the DP8 full installer. It converted to APFS with no option otherwise.

The one issue I've had with APFS is it sometimes marks itself as unclean. The data isn't actually gone, but the drive won't mount anymore. You can just use the recovery partition to kick the drive, and it will come back.

Something they should work on fixing, but it's not like the whole drive is corrupted.

NTFS can have similar issues, but the Windows integration is mature enough it doesn't accidentally leave the drive marked as unclean.
 
any new firmware in today's updates?

edit- just downloaded it and it doesn't appear so. but interestingly it wont let me install onto a RAID-0 appleraid with 2 SSDs, interesting :/
 
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DP9 added nothing new for me in terms of APFS, except that I was able to convert a test partition running HS using Recovery after unmounting the drive. I got a warning that the drive would not be bootable but tried it for the heck of it. The partition occupies the whole of a 1TB drive. True enough, the partition vanished from the from the EFI boot selection screen but was still visible from Finder in Sierra on another drive. Trying to select the drive via Startup Disk failed because boot caches could not be built on the drive.

Looking at DU, the partition was converted from a primary partition into a logical volume sitting in an APFS container partition. This brought back echoes of OS/2 Warp 4 and its Logical Volume Manager, which seemed to work in the same way.

Looks like no APFS for me except for data drives.
 
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DP9 added nothing new for me in terms of APFS, except that I was able to convert a test partition running HS using Recovery after unmounting the drive. I got a warning that the drive would not be bootable but tried it for the heck of it. The partition occupies the whole of a 1TB drive. True enough, the partition vanished from the from the EFI boot selection screen but was still visible from Finder in Sierra on another drive. Trying to select the drive via Startup Disk failed because boot caches could not be built on the drive.

Looking at DU, the partition was converted from a primary partition into a logical volume sitting in an APFS container partition. This brought back echoes of OS/2 Warp 4 and its Logical Volume Manager, which seemed to work in the same way.

Looks like no APFS for me except for data drives.

May I know if that's a SSD / HDD?
 
ill have to make some tests, but I do have several video cards i can test but I dont own any Mac OS X supported USB3 cards sadly or any NVMe drives... (im also curious if windows will boot in EFI mode with the 7950 running mac EFI as before it would crash at the EFI windows boot loader stage way before any sort of video drivers load plus it also happened with a USB installer and those dont contain video drivers, if i removed the 7950 or switched it to legacy BIOS it would boot fine...)

BTW here is the Firmware update thingy i mentioned earlier

View attachment 712007
@LightBulbFun how do you fix this error of firmware update?
 
So i just did a full install of the GM and i thought i was going to have to get into he recovery partition to try to see if APFS was still greyed out. To my surprise, the GM automatically converted my ssd to APFS. No notice, prompt, anything. SO i guess thats it. now to just get CAT working
 
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theres some good discussion over on the Git for CAT, but still no solid answers. i think it'll work once we figure out what SIP is really doing to the CAT.

macOS High Sierra reports Continuity as working but I see no results. · Issue #397 · dokterdok/Continuity-Activation-Tool · GitHub
Thanks for the link. It looks like Sysfloat, who is a collaborator on the project, might be working on getting the tool updated for High Sierra. This is great news. Fingers crossed.
 
So i just did a full install of the GM and i thought i was going to have to get into he recovery partition to try to see if APFS was still greyed out. To my surprise, the GM automatically converted my ssd to APFS. No notice, prompt, anything. SO i guess thats it. now to just get CAT working

May I know if there is any internal HDD in your Mac?

Anyway, I expect we have to wait for a while before CAT and night patch can work.

What I am thinking is if I should uninstall CAT before HS upgrade. Or the new OS installation will automatically replace all CAT modded system files. So, doesn't really matter.
 
May I know if there is any internal HDD in your Mac?

Yes I actually have 4 HDDs, and a single SSD in the lower optical. My home folder and data lives on one of the HDDs, and my SSD is just apps and OS.

SSD was just converted APFS during this install.

The home folder HDD, I converted APFS manually myself.

The other 3 HDDs are pro app data and time machine. which I have-not converted just incase I need to use on another machine.

I also have an External HDD cloning the SSD and that one is still HFS, so I have all options in case of failure.
 
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