How to combine multiple partitions on MBP

[3bs]

So I had an old bootcamp partition that I hadn't used in forever. I erased it and set to AFPS (encrypted) using Disk Utility since my main macOS partition was AFPS (encrypted). After that I clicked the (-) and now that partition still occupies what it used to 151GB and is called Container disk2. What do I do to get one single partition. Using 13" 2018 MBP on Catalina 10.15.6.

 

[3bs]

Anyone?

 

[BrianBaughn]

I don't know if there's an safe and easy method for that…but anyone would tell you to back up your system before trying anything. So, if you're going to back it up you might as well clone it. Then, as long as you have a verified, bootable clone, you might as well just reformat the drive and restore from the clone…and forget about any other methods.

 

[DeltaMac]

When you removed the Boot Camp system, the best chance that you had to make this easy (and your first choice at that time) would have been to use the Boot Camp Assistant to remove that boot camp partition. You can't do that now after using Disk Utility on that partition.
Now, as BrianBaughn says - backup, erase/reformat, restore from your backup. (Erase the device, not just the one volume/container)

 

[Fishrrman]

When nothing else works, THIS will work (canned posting):
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The following procedure will remove that BootCamp partition, 100% guaranteed:

1. Get either CarbonCopyCloner or SuperDuper. Both are free to download and use for 30 days (doing this will cost you nothing)
2. Get an external drive (if your internal drive is 500gb, the external should be that size or larger)
3. Use CCC or SD to clone the contents of your Mac partition (the regular partition you boot into and work from) to the external drive
4. Now, BOOT FROM the external drive (press the power on button, IMMEDIATELY hold down the "option" key CONTINUOUSLY until the startup manager appears, then select the cloned drive and hit return).
5. When you get booted from the external drive, open Disk Utility
6. In the upper-left-hand-corner of Disk Utility, choose "show all devices"
7. Now, click the uppermost line for your internal drive (this represents the physical drive itself).
8. Next, click the "erase" button and ERASE the internal drive, completely. You would choose APFS, GUID partition format if you want APFS formatting. For HFS+, choose "Mac OS extended with journaling enabled, GUID partition format".
9. Once the drive is erased, quit Disk Utility and re-open CCC (or SD).
10. Now, RE-clone the contents of the cloned backup BACK TO the internal drive.
11. When done, disconnect the external cloned backup and reboot to the internal drive.
12. Done.