Not enough free space on your disk to install macOS Catalina

I cannot install Catalina on my MacBook Pro. When trying to quit the installer, I have not choices on the Startup Disk and I got stuck in a loop of automatically trying to install the new OS and Not free Space. I need to know how to solve it! Help me please!!!

MacBook Pro with Touch Bar

Posted on Oct 7, 2019 8:37 PM

Reply
Question marked as Top-ranking reply

Posted on Oct 7, 2019 9:30 PM

Recently answered here: https://discussions.apple.com/thread/250711825?cid=em_apple_email_question_correctanswer_go_to_the_discussion_en-us&answerId=251355788022#251355788022


I was facing the same issue and was on the verge of reformatting my macbook.


Here's what fixed the issue for me. I'm not sure if step 1 was necessary, but since I did this en route to fixing the loop of death, I'll list it here for you to consider.


  1. Try to reinstall Mojave (this won't wipe your disk) - I wanted to return my macbook to as original a condition as possible, and I figured attempting to install Mojave was the best way to do it. Since I couldn't boot from "Macintosh HD" anymore (I was just getting a white circle with a bar across it), I rebooted my macbook and pressed Cmd + r. This helped me boot into recovery mode. Once there, I clicked on "Reinstall macOS". Don't worry, you won't loose your data doing this as it merely overwrites the OS, it doesn't overwrite your files. Once you do so, and assuming you're connected to Wifi, your macbook will start downloading Mojave and eventually attempt to install it. After an agonizing 30-40 minutes, it'll give you the same error - "not enough free space to install the OS".
  2. Try restoring from Time Machine Backups (you might actually have one) - I cannot emphasize how strongly I believed I didn't have one of these backups, but unbeknownst to me, it did exist on my drive. Even if you're convinced you don't have one, it doesn't hurt to give this a shot. Reboot and go into recovery mode again (press cmd + r during reboot). This time when the options pull up, choose "Restore from Time Machine Backup". Now, as I mentioned before, I thought I hadn't got this turned on, but I guess it was turned on by default by the OS. Your macbook will prompt you to pick a disk where the time machines are stored, and I picked "Macintosh HD". When I clicked this option, I saw about 5 backups populate from today itself. I picked one of them that felt fairly far away from the moment I had began installing this OS. For example, if I started my installation at 4pm, I decided to pick up the recovery from 2pm (even though there was a backup available from 4 pm).


Within 5 minutes, the backup restored. All my files were intact, even though I had explicitly moved out/deleted about 30G of files while trying to debug the installation issue.

78 replies

Oct 8, 2019 11:36 AM in response to Nuno R.C. Lopes

All I need is how to get out of this **** loop and log in via a Safe Mode to be able to free up space. I had 21GB free at the start, and this install does not check disk free space before installing and now I am left with a useless a MacBook Air all thanks to badly written code by Apple. How come something as simple as this be overlooked after so many updates over the years? Help please!

Nov 2, 2019 12:53 PM in response to maauriceg

I spoke with Apple Tech Support, multiple people told me that a Time Machine backup would be on an external HD if I set it up. If it searches for a backup with your external HD (or without) for more than 5-6 minutes, there is likely no backup on Time Machine. All they recommended to me is paying a third-party to recover data on my HD, wiping the HD, and starting over.

Oct 9, 2019 3:19 PM in response to Nuno R.C. Lopes

Fun new issue, after restoring from a TM backup and freeing up 70GB redownloaded the update and started over. Came back to a message that Catalina couldn’t be installed and to try running diagnostics. Restart again into recovery mode but of course all the local TM backups are now gone. Which whatever, I have a whole set at home but since I’m traveling that does me no good. I’m not losing any data everything’s with a variety of cloud services but it’s awesome to waste hours of time on this. It’s a terribly rolled out update far below previous standards.

Oct 9, 2019 8:24 PM in response to neotaruntius

Am on track, thank you (so far so good). This is a big ball drop by Apple and if they had to pay everyone for the half-day lost, it would be a scandal. It shows how accustomed to their seamlessness I have become (‘what could possibly go wrong?’). Well, apparently this. Thank you again for taking the time to write this go-round. 😎 from Oz

Oct 10, 2019 2:10 AM in response to paulosgerding

Greetings from OZ!

I feel your pain of needing the MBP to achieve a work commitment ... mine is marking and course prep amongst other things. Thank goodness the iPad Pro is helping with emails in the meantime.

I am still finding issues, such as apps not opening easily despite rebooting. I am running CleanMyMac in the hope that it does something ... although I’ve no idea what! How is Canada, I miss it?!


All the best

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Not enough free space on your disk to install macOS Catalina

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.