#Combine to mac os extended journaled for mac os x
#Combine to mac os extended journaled update

I cannot update to Monterrey because I have an old Mac which does not support further updates. How can I prevent this from happening? This seems to be some bug in Big Sur Time Machine backups. The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assi. As you can see when you click the Format pop-up menu, there are many choices available other than APFS: We’ll select Mac OS Extended (Journaled), which is.

It automatically chooses APFS, and reformats my drive to APFS if I format it to HFS+ first!!Īt first I thought this was just for SSD's, but now I find it is doing the same when I try to backup to an ordinary HDD. To reformat our drive as HFS+, we need to click on Container disk3 (or whatever your APFS container is named) to select it, then click the Erase button in the Disk Utility toolbar. You should see a list of all your containing drives within each of their respective volume. But Big Sur does not give me the option to create my time machine drive with HFS+. Step 3 Select the drive you want to convert. I have found that there is nothing wrong with the drives, and they work fine when formatted as Mac OS Extended Journaled. Click the Erase button, Disk Utility will start formatting the drive. Other formats are available, but the best performance will be with one of the native Mac formats.

WARNING: Formatting the drive will erase all data on the drive, so you should copy any data you want off the drive prior to formatting. For Volume format, select Mac OS Extended (Journaled). And theres no limit to the size of files you can put on the drive.

#Combine to mac os extended journaled for mac os x

This has been heavily documented on Apple forums. Set Format to Mac OS Extended (Journaled) Set Scheme to GUID Partition Map. Mac OS Extended (Journaled), is the default file system format for Mac OS X drives. The problem is, there is some kind of bug in Big Sur, where randomly after a few backups there is an error during the 'Preparing Backup' stage, where it just says there was an error (no detailed information). Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I had two SSD's - when I tried to use them for time machine backups, they were automatically formatted as APFS without giving me an option to select Mac OS Extended Journaled. The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assi.