How do I remove the High Sierra test partition?

[Rod]

Now I have done this before with earlier OSX but with the different filing system of High Sierra (APFS container) I thought I might just ask how to go about this.
I have a 30Gb partition on my 500Gb MBP internal HD running Sierra for testing the beta version of High Sierra.
I have run out of time for testing and with the imminent release of the gold version in Fall I thought I would return the storage space to my main drive.
How do I erase, remove and return the 30Gb storage space to my Macintosh HD?

 

[pm-r]

How do I remove the High Sierra test partition?

I would think just doing the opposite to what you did to create it with your partitioning and formatting and using Disk Utility.app I would think.

You should just be able to use DU to delete it.




- Patrick
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[bbnck]

Take a full backup with Time Machine or a suitable alternative. Then open Disk Utility and select the drive from the left-side - the label of the primary drive usaully starts with APPLE SSD or Fusion Drive. With the correct storage device selected, click the Partition button at the top of the window and select the partition you installed High Sierra on. With the partition selected, click the minus button below the item to delete it. It is physically not possible to delete the partition you are currently booted into, so don't worry about that.

Note: If the Partition button is greyed out, that's usually because you've selected one of the partitions of the drive and not the drive itself.

 

[harryb2448]

[https://www.macobserver.com/tips/deep-dive/macos-sierra-delete-apfs-partition-right-way/

Not as easy as before Rod.

 

[bbnck]

[https://www.macobserver.com/tips/deep-dive/macos-sierra-delete-apfs-partition-right-way/

Not as easy as before Rod.

Ah, I didn't spot he mentioned it's an APFS partition...

 

[pm-r]

[https://www.macobserver.com/tips/deep-dive/macos-sierra-delete-apfs-partition-right-way/

Not as easy as before Rod.

Thanks for that info and find harryb, but I'm a bit surprised that they haven't exactly seemingly got Disk Utility.app modified and updated enough to deal with such a drastic APFS partition/formatting changes properly, even for use with a beta release.



- Patrick
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[harryb2448]

Beta is beta and never exp[ect too much. For mine will wait quite a while before upgrading.

Quote from the link:-

Remember, It’s Pretty Much Still Beta. Bear in mind that the current tools we have for working with APFS are intended to keep casual users from messing up their Macs. On macOS Sierra 10.12.4, APFS is still rather in a beta stage. I expect the UI tools will get easier to use when all of the kinks are worked out.

 

[chscag]

Hey Patrick:

When you run a beta, you take your chances! Which is why I installed the beta on a clean external bootable hard drive and when I got tired of fooling with the beta, I just formatted the external hard drive. No fuss, no muss, no cuss. ;D

Oh, and ... Disk Utility will nicely erase and format an external drive that has been formatted to APFS.

 

[pm-r]

Hey Patrick:
When you run a beta, you take your chances! …

Thanks Chas, and I'm quite aware of OS betas and what problems they may bring, but as I said, even for a beta, I'm surprised that it's Disk Utility seems to be so lacking on its abilities, especially with the introduction of the APFS Partition'Format.

But I guess I'm even more surprised that a knowledgable and I gather experienced member would have even tried using a partition on their internal drive to install/format etc. all that was required for the beta OS. :Blushing:


PS: And OT, but I hope you're safe from the big storm I see is approaching the area south of you.





- Patrick
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[Slydude]

So setting the entire drive up as an AFPS drive was a better idea right??

 

[pm-r]

So setting the entire drive up as an AFPS drive was a better idea right??

Well I would have thought using a separate External Drive would have been a better option but I'm just trying to learn something about the new APFS stuff.

Lot's to learn, just here:
Frequently Asked Questions
https://developer.apple.com/library...Management/Conceptual/APFS_Guide/FAQ/FAQ.html



- Patrick
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[Slydude]

I used the internal drive rather than an external drive for a reason. I knew there would be tons of questions from the membership, especially as it relates to speed and performance. Since the Sierra comparison data was based on the internal drive I figured the Hight Sierra performance data had to be under the same conditions. Now that we're inching closer to the release date I'll probably run speed tests on the beta later this week.

Thanks for that link BTW. Lots of useful info.