I hope that this explanation will help others wanting to maintain two different operating systems with different file formats.įINALLY: When launching Mavericks The App Store will offer to update Mavericks to High Sierra.
Bottom line: maintaining a partition with the Mavericks OS is much cheaper than updating FileMaker and Finale. Prior to this I had Mavericks on a thumb drive which proved to be much slower and limited in capacity. I might add that I have since renamed the SSD partition High Sierra since both partitions with their respective operating systems are on the internal SSD. The following picture shows the Mavericks Partition: I am guessing that the shrinking action was due to the overallocation. I apologize for the quality of the photo, but I had to use my camera since I couldn’t take a screenshot. This answer is for macOS Catalina and earlier versions - Big Sur now can use APFS - see Apple's Types of disks you can use with Time Machine on Mac You can also use HFS+ as before. Warning: Overallocation Detected on Main device. 2 Note this answer now depends on the version of OSX/macOS you have. The scary part was in watching the detailed process when it came to “ Shrinking APFS data structures.” I lost track of time, but I’d say that it took more than fifteen minutes which is a long time when you come to fear that the computer may be locked up due to the following message: macOS Sierra has an experimental version of APFS that runs into complications with languages other than English and cannot do Unicode normalization. It suddenly occurred to me that I might need to create a partition on the SSD by using Disk Utility WITHIN the recovery mode. Compatibility of APFS File System In the below table, you can see which operating systems and utilities are compatible with APFS. We can launch the app by pressing the keys COMMAND + SPACE BAR. Disk Utility comes installed on your Mac as part of macOS and it offers a graphical interface for formatting our hard drive to Mac OS Extended.
Compatibility issue between apfs and macjournal extended how to#
I solved the problem somewhat accidentally. Method 2: How to Format APFS Hard Drive to Mac OS Extended by Using Disk Utility.
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