Unable to install macOS Sequoia update 15.4 on my MacBook Pro

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KirillRP Author

Level 1

40 points

Unable to install macOS Sequoia update 15.4 on my MacBook Pro

Experiencing an issue with installing the macOS Sequoia 15.4 (24E248) software update. Chip: Apple M1 Pro.

The internet connection and power are stable, and I have rebooted the system multiple times, but the issue persists.

Tried updating both via the GUI and CLI:

• CLI: Prompts for a password, then exits without any error, even when using the --verbose flag.

• GUI: Asks for authentication twice, then returns an error without providing any additional details.

[Re-Titled By Moderator]

MacBook Pro (2021)

Posted on Apr 2, 2025 2:29 AM

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Answer 1

Owl-53

Level 10

95,435 points

Apr 3, 2025 2:07 AM in response to KirillRP

From another similar question related to downloading the Full Sequoia 15.4 via Terminal

https://discussions.apple.com/thread/256030016?sortBy=oldest_first

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Answer 2

DLZab

Level 1

63 points

Apr 7, 2025 2:54 PM in response to angeloruggieri

Look Here: Install macOS on an external storage device and use it as a startup disk - Apple Support

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Answer 3

Apr 12, 2025 1:25 AM in response to svmrw

How to revive or restore Mac firmware - Apple Support

restore it from another Mac.

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Answer 4

DLZab

Level 1

63 points

Apr 5, 2025 2:13 PM in response to KirillRP

I just noticed that the App Store now shows Sequoia 15.4 (Updated 20 Hrs Ago):

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Answer 5

Apr 16, 2025 1:36 PM in response to KirillRP

Try installing 15.4.1, released today!

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Answer 6

Apr 2, 2025 2:58 AM in response to KirillRP

How much free space on your system drive?

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Answer 7

KirillRP Author

Level 1

40 points

Apr 2, 2025 4:24 AM in response to Owl-53

System Integrity Protection status: enabled.

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Answer 8

KirillRP Author

Level 1

40 points

Apr 2, 2025 5:27 AM in response to Owl-53

softwareupdate --fetch-full-installer --full-installer-version 15.4


Scanning for 15.4 installer
Install failed with error: An internal error occurred

It has failed after 10%

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Answer 9

KirillRP Author

Level 1

40 points

Apr 3, 2025 3:16 AM in response to KirillRP

The issue magically disappeared.

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Answer 10

DLZab

Level 1

63 points

Apr 3, 2025 3:43 PM in response to KirillRP

Hi KirillRP - What did you do to make it magically disappear?

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Answer 11

msharief

Level 1

14 points

Apr 3, 2025 10:24 PM in response to KirillRP

now I can’t access the Mac and when I tried to do software update on the terminal I get command not found

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Answer 12

Apr 4, 2025 7:29 AM in response to KirillRP

This is a totally unprepared update. "It just works" - errr, no it just doesn't

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Answer 13

Apr 4, 2025 7:44 AM in response to cargawar

It s a workaround not a fiX, we should not have to run safe mode for an update .

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Answer 14

Apr 5, 2025 1:45 AM in response to KirillRP

I'm guessing the imposed tariffs already has a huge impact.

I tried all of the above including macadmin-scripts

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Answer 15

Dr Bubba

Level 1

10 points

Apr 5, 2025 2:25 AM in response to volodymyrfromkharkiv

I did the same thing but I get the error message and Sequoia still won't install. Fortunately, I'm able to run Sonoma 14.7.5, but what a frustrating experience.

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Unable to install macOS Sequoia update 15.4 on my MacBook Pro