If your drive is formatted with other file systems, the "Convert to APFS" option will be greyed out or not available.
How to fix the "Convert to APFS" option is not available or greyed out issue?
If one volume can't be mounted, the file system of it might have been corrupted and can't be recognized by Mac operating system. In this case, you need to erase or reformat the volume to APFS, which will wipe out all the data stored in it. Solution 1: Step 1: Open Disk Utility.
And then click the "View" menu at the upper left corner and choose "Show All Devices". Step 2: Find the drive that you want to format to APFS and select it.
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Click "Erase" at the top of the window. Step 3: If you have important data in that volume which is not mountable, or unfortunately you have lost data in the process of fixing this issue, here is the solution to recover data. If you lost data on the startup drive, to avoid overwriting the original data, you should find an external drive and download and install iBoysoft Mac Data Recovery on it. Click "Next" to search for all lost files on the drive. Step 4: Preview the listed files, choose those you want, and click "Recover" button to get them back.
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Technically, APFS conversion doesn't have any hardware restrictions. Many people have discussed the "Convert to APFS" option not available or greyed out issue in different forums.
Apple developer explains in FAQ: Store current Mac Data Recovery. Thanks P. You can always format the micro SD using another device, like a phone or so, then remove the new create data like folders.
I actually don't have any of those devices, I only have my mac and a raspberry pi where the SD should host the OS Try to unmount the SD and format it with the disk manager. If I unmount it eject in mac , I cannot see it anymore in the disk utilities application: Sign up or log in Sign up using Google.
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