Big Sur installation failed and wastes large space

Question

Big Sur installation failed and wastes large space

Hello everyone,

I've downloaded Big Sur update and there was 37GB free on the startup disk and after agreeing with the terms it starts to extract the packages to install

and suddenly, stopped and I got a message saying "try to install again"

and the free space on the disk decreases to 25GB

I tried to install it again but it says "do not have enough space"

so, I cannot install the update because I lost 12GB and I don't know how to delete the files took this space to install the update.

Thanks.

MacBook Pro 13″, macOS 10.15

Posted on Nov 13, 2020 6:16 AM

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Answer 1

CarlAVII

Community Specialist

Nov 19, 2020 1:58 PM in response to Muhammed Atif

Hi there Muhammed Atif,

Thanks for reaching out to Apple Support Communities. We understand you ran into an issue updating macOS. We’ll be happy to help.

To make more space for your update, follow these steps: Optimise storage space on your Mac. Then follow these steps to update: How to upgrade to macOS Big Sur. We hope this helps.

Best regards.

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Answer 2

Nov 19, 2020 2:12 PM in response to Muhammed Atif

The installer is probably already there in the Applications folder.

It is called Install macOS Big Sur and it uses about 12GB.

You need to free some more 10GB in order to be a le to install. The available 37 (now 25 since the installer is using 12) are not enough.

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Answer 3

Nov 19, 2020 4:50 PM in response to Luis Sequeira1

Thanks

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Answer 4

Nov 19, 2020 4:51 PM in response to CarlAVII

Thanks

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Big Sur installation failed and wastes large space

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