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home directory size problem

My HOME directory is on an external SSD due to lack of space on my main drive. . My finder tells me that my home directory is 601GB, of which the usual suspects (Movies, Music & Pictures) account for only 70GB. The actual culprit appears to be the Library folder which takes up a whopping 516GB! I don't understand how this can be. How can I best clean and reduce this folder?

I wanted to do this because I am having great difficulty with starting up since upgrading to Monterey, which only boots up if I do it in safe mode, and even then takes ages losing in under my usual userid (although much quicker logging in as another admin account.)

Or am I barking up the wrong tree anyway....

Mac mini, macOS 12.2

Posted on Feb 23, 2022 1:33 PM

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12 replies

Feb 23, 2022 2:23 PM in response to Peter Kwee

I checked ~/Library in my environment. It's using about 35 GB. If your account had been on the system volume, you could have used Manage Storage (see below) to analyze.


Using a recent Time Machine backup, you could consider running the Migration Assistant to make a duplicate of your account with only the user files. That way you could assess which capabilities would be affected by not having access to the files stored in (the old) ~/Library.

Feb 24, 2022 6:07 AM in response to Peter Kwee

Peter Kwee wrote:

The actual culprit appears to be the Library folder which takes up a whopping 516GB!


Try using an app like Daisy Disk or Disk Space Analyzer to examine the drive and the ~/Library folder.


I recently did the same and discovered multiple iPhone backups taking up over 120GB. They are stored in ~/Library.


Also, if you are using Mail, MS Outlook or other 3rd party email apps, they also store their data in ~/Library and can take up a lot of space.

Feb 23, 2022 4:10 PM in response to Peter Kwee

If I remember correctly, the Migration Assistant allows you to recover your existing files to a new user account (select the option to keep the old account). As a first step, you can transfer only your user files (don't select system files and settings). I presume that, in such a case, all or most of your library will not be transferred. You may have to manually restore some settings and even reinstall/reconfigure some third party software.


Assuming that the new account is acceptable, you could ultimately delete the old account.


By the way, navigating the library hierarchy can be difficult since it's hard to determine the impact from removing a particular file or folder.




Feb 24, 2022 7:36 AM in response to Peter Kwee

Running EtreCheck can list all the 3rd party agents and daemons that startup on your system, as well as your Startup Items. None of the 3rd party stuff starts when you boot into Safe mode, so they are a likely source of your boot problems.


https://etrecheck.com/

The "Free" version is all you need to generate a report. You do not need to pay for EtreCheck. And if you want to see what a typical EtreCheck report looks like, just search the discussions.apple.com forums and you will find thousands and thousands of EtreCheck reports:



If you wish to post the EtreCheck report in an "Additional Text" box, someone in the forum will help you analyze it

Feb 23, 2022 3:18 PM in response to BlueberryLover

Hi, yes the 601GB folder size seems crazy out-of-this-world given how I use the mac, so figured there must be something wrong with it, which I'd like to explore and fix if possible. Otherwise yes, your suggestion would be my fallback - I'm guessing I need to start off login in under a new userid to set that up as my 'new' partly-cloned self before deleting the old user account....?

Feb 23, 2022 3:20 PM in response to Peter Kwee

Yes, it is an Applications -> Utilities -> Terminal command. It will find all the files under your home directory, sort them so that last files displayed will be the largest, which would be the logical place to start looking for where you storage has gone.


NOTE: Most users that are unfamiliar with the Terminal use the term "Folder". Your use of the word "Directory" made me think you were an experienced Terminal user. Sorry for the misunderstanding.



OmniDiskSweeper (Free) GUI for finding where all your storage has gone.

http://www.omnigroup.com/more

OmniDiskSweeper is a tool for finding where all your storage has gone.

Just be careful about what you delete.

Feb 24, 2022 1:02 AM in response to BobHarris

Hi again, I tried the terminal command, and got the following:

Petes-Macmini:~ peterkwee$ du -hx $HOME | sort -h


du: /Volumes/Sandisk: No such file or directory


du: SSD/peterkwee: No such file or directory


I may find it easier to set up a new user account because my mac still seems to hang unless I start in safe mode; but still curious about what's going wrong here. Am I getting into deeper water than I can manage now?!

Thanks for your help, anyway.

Feb 24, 2022 6:21 AM in response to Luis Sequeira1

Thanks, that did the trick! I found an unbelievable 464GB cache created by ON1 photo editing app tucked away in application support folder. (and all sorts of other smaller space hoggers of course).

Grateful thanks to BobHarris and to you Luis Sequeira1

Now I have to see if I can boot up Monterey (12.2.1) without having to use the 'shift' key. Strangely, doing so does not give any obvious signs of being in safe mode, but I guess that's a different issue for another thread / day.

home directory size problem

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