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sdwaltz

macrumors 65816
Original poster
Apr 29, 2015
1,095
1,752
Indiana
Weird issue.

I picked up an old-school pre-unibody 17" MBP last week on eBay, installed a 500gb SSD and upgraded to 6gb RAM, and immediately installed Catalina via dosdude1's patcher.

I also kept El Capitan and installed Mavericks, and created another partition to install Windows - so, 4 partitions in total, split essentially evenly at approx 125gb/partition.

I discovered this issue when trying to install Windows through Boot Camp - it said that the install requires at least 42gb of free storage on this partition, which flabbergasted me as I don't have very much on this machine. I looked and somehow, I only have 5.97gb left of storage on my Catalina partition. (Don't get me started on the fact that it won't let me just choose the partition I already created for Windows). There seems to be a lot of phantom "other" items and I have no idea what it could be - I promise you that there is no way I have managed to put 100gb of data on this partition. MAYBE 60.

Disk Utility tells me that "other Volumes" are taking up 101GB on this partition...whatever that means. Now, I can certainly turn off iCloud photos, clean up things in messages, etc...but that will only go so far. I also don't even need El Capitan anymore, but Disk Utility won't let me delete the partition nor will it allow for me to increase the size of the Catalina partition. In short, it seems like I'm unable to do anything I want to do in terms of increasing storage space.

What's going on here and what did I do wrong?

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