I started my update at night and woke up in the morning to this screen, stuck at the same place for hours now.
The error log is a long sequence of the same two lines.
isConvertableToAPFS: was called on a APFS disk. Target is not convertible to APFS: This volume is not formatted as Mac OS Extended (Journaled).
Here is a screenshot.
So after browsing around the internet for a bit, I figured there are some solutions I could try.
- Reboot into internet recovery. From here.
- Disable encryption. Since in Disk Utility, my drive is shown as Mac OS Extended (Journaled, Encrypted) and not what you see in the error log.
- And of course, retry.
But the problem is that I can't afford to lose the data I have downloaded till now, i.e., I can't download 5GB of data all over again.
All the options I see till now, involve closing the the installer. So I have two questions: Will I lose my data if I close the installer? If yes, is there any other to go about it, a fourth option?
My primary aim is not losing data, I plan on keeping the installer running till I don't find a solution.