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#Mac os disk utility erase combine how to
#Mac os disk utility erase combine free

This answer will clone the Projects volume to the partition containing the Untitled volume, then merge the partition that contained the original Projects volume into the partition containing the Macintosh HD volume You can not directly merge the partition containing the Untitled volume into the partition containing the Macintosh HD volume, because the partition containing the Projects volume is between these two partitions. Here, I assume there is no data to be saved on the Untitled volume. This answer involves merging while attempting to preserve the Projects volume in a separate partition. I agree with Gilby's answer with respect to having the Projects volume stored in the same container as the Macintosh HD volume. If you don't have a strong reason for multiple volumes then just use one, placing folders under your home folder or /Users/Shared. Everything (folders and files) is much simpler to manage if all your data is in the Macintosh HD volume.

#Mac os disk utility erase combine how to

Warning: If you have a disaster (due to either your mistake or my incorrect instructions) you will need to do a reinstall of macOS and recover your data from backup!! So make sure your backups are good and you know how to recover.įinally, do consider if you really need multiple volumes. Copy the Untitled data into some folders in Macintosh HD - best in your home folder or the /Users/Shared folder.

Exit Disk Utility and, using Finder, copy your project data back into the new Projects volume.

If you want to limit the size of the Projects volume, you can do this when creating the volume by using "Size Options" - you may want to set the quota (maximum size). The volumes all share the same 500Gb disk space and, by default, will expand as required - only limited by the total of 500GB.

Still in Disk Utility, select the Container and add extra volumes as required.

You should then have one partition of 500GB with a Container which has 2 obvious volumes - under Big Sur or Catalina they will be Macintosh HD and Macintosh HD - Data.

That will allow the main partition to grow to fill the disk.

In Disk Utility remove the Projects and Untitled partitions.

Copy the content of Projects and Untitled to another disk.

#Mac os disk utility erase combine free

I apologise for lack of screenshots, but I don't have a free disk or two required to replicate your setup.

You need a backup of Projects and Untitled because you will be deleting them. The backup of Macintosh HD is in case of mistakes/disasters. The volumes will all share the 500GB disk, but will not be restricted to particular sizes like your 350GB, 75GB and 75GB.īefore you do anything with your disk structure make sure you have a good backup of everything you need to keep. The container can then have multiple volumes - in your case: Macintosh HD and Projects. I recommend having one partition which is formatted as an APFS container. In what follows I assume you want all the files in all three existing partitions. Firstly, you don't need to have separate partitions.