I'm a developer and generate a dmg to distribute my application. After upgrading to High Sierra the dmg has the APFS format which is not supported on older OS X versions. Is there a way to convert this dmg to the old format?
MacBook Air (13-inch Mid 2013), macOS High Sierra (10.13.2)
It doesn't appear you can convert from APFS back to HFS+. You can though go the other direction; right-click on the mounted DMG in Disk Utility and choose 'Convert to APFS...'
You can still create HFS+ disk images in High Sierra using Disk Utility. You should then be able to copy the items from the APFS image to your HFS+ image.
It doesn't appear you can convert from APFS back to HFS+. You can though go the other direction; right-click on the mounted DMG in Disk Utility and choose 'Convert to APFS...'
You can still create HFS+ disk images in High Sierra using Disk Utility. You should then be able to copy the items from the APFS image to your HFS+ image.
Thx for the tip. I was able to create a new dmg in the old format with hdiutil. I copied the items from the APFS volume and compressed the dmg and it can be opened now on older OS X versions.
Create dmg for older OS X versions
