When you want to delete your APFS partition, there’s a right way and a wrong way (Image Credit: ) What’s With the Hassle? Because of the way APFS is designed, we now have something called a container. This is the base storage unit for APFS, and it’s managed differently from older file systems.
Each container can export one or more volumes, the actual “drives” you see in Finder. Because of this, you’ll see an APFS Container and your volumes in Disk Utility, separate from the physical drive the container is located on. A diskutil list, showing the APFS Container scheme. Delete Your APFS Partition the Right Way If you use Disk Utility to erase an APFS volume and format it HFS+, you’ll find that the old APFS container sticks around. The same thing happens if you use diskutil the wrong way. This means you can’t merge the partition back into the other partitions on your external hard drive. Here’s what you need to do in order to go about deleting your APFS partition correctly.
First, use Disk Utility to eject your APFS container. Deleting the APFS partition You may get a message that the APFS container was damaged. If so, you can safely ignore that message. However, if the operation fails and you’re working with an external USB drive, try disconnecting the drive and then plugging it back in. For an internal drive, you’ll unfortunately need to reboot.
Could not create a preboot volume for APFS install. Discussion in 'MacBook Air' started by Gatt, May 2, 2018.
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. It’s all a bit of a pain, I gave up trying as I did not appear to be selecting the right /dev/disk options. I had it working once in the past from these hints, but no joy this time, Then I had a thought: What happens if I boot into Mavericks 10.9 from a USB drive, what will the APFS partition show up like in Disk Utility?
Turns out that you can easily re-partition the drive, as it shows up the same as any other unformatted partition. Done in seconds without needing to revert to Terminal commands.
Hello, I wanted to reformat and do a fresh install of macOS High Sierra as i will be giving the mac to my sister. My process was Going to the CMD+ R screen Going to Disk Utilities -Erasing Macintosh HD -Rebooting and going back to CMD+R screen again -Clicking on install macOS -Clicking on install High Sierra -Once the process reached 100%, I got the error “could not create a preboot volume for APFS install” Now I am unable to install a macOS any help please?
Iam using MacBook Air 2017? Also i tried to change Maconitsh HD to Mac extended Journal instead but i dont have that option just all AFPS related. Here is a pictures from the disk utility thanks!