Disk Utility Formatting Mojave Drive

[SpaceGrayAlways]

After installing beta 2, I started having most of my built in MacOS applications crash with minimal use (without any obvious reason). Upon running disk utility, I found that my drive had been corrupted by the new install. I attempted a repair with no success. But... no big deal, it’s time to erase and restart.

However, I have been attempting to erase my drive for hours now. The 27” iMac 1 TB FusionDrive seems to be stuck attempting to delete the volume. After it was stuck for a number of hours doing this I force restarted and gave it a second attempt, but we are still going.

Format is being done via Disk Utility into APFS format after launching into recovery mode via Command + Option + R.

Any suggestions or ideas as to why this might be failing so miserably?

 

[bendrumin]

I had that issue today, I had to split my fusion drive using internet recovery.

To split:

https://www.lifewire.com/split-fusion-drive-apart-2260166

And then create it again:

https://support.apple.com/en-us/ht207584

After that, I was able to reinstall High Sierra via a time machine backup