Why can't the Mojave installer work. I get a error message that reads "unable to install because the downloaded file is corrupt ". I can't install Mojave with this install method. Is there another way ? A DMG Install file would be nice

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Level 1

4 points

Why can't the Mojave installer work. I get a error message that reads "unable to install because the downloaded file is corrupt ". I can't install Mojave with this install method. Is there another way ? A DMG Install file would be nice

I get this error message from the Apple Site that reads : "This copy of the Install macOS Mojave application is damaged, and can‘t be used to install macOS. " Is there a way to fix this issue? Is a there a DMG Install File available for Mojave ? Can or will Apple repair their own website ?

MacBook Air 11″, macOS 10.12

Posted on Apr 19, 2022 12:18 PM

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Answer 1

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Jeepstur Author

Level 1

4 points

Apr 19, 2022 3:13 PM in response to BDAqua

Wow ! I used choice # 1 and set the time to 1/19/2014. The Mojave Install App I had in the application folder opened up and installed Mojave on my MacBook Air 11" early 2014. I had tried all the other "tricks" I found on the internet including this site to no avail. This technique ( setting time to 2014 to fool the certificate) worked. I did forget to disconnect from the internet and it still worked. Great ! Thank you for your fine advice BDAqua.

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Answer 2

BDAqua

Level 10

240,929 points

Apr 19, 2022 12:56 PM in response to Jeepstur

If you get a corrupted message...

Naw, not damaged, it's just that you have an old copy already in Applications, there are 2 cures...

Disconnect from the Internet & set the Date back to 2014, then you can run the Install MacsOS Mohave App in Applications, so expired Certificates are not expired.

Or... trash the Install MacsOS Mojave.app in Applications, empty trash & restart, then a new copy of a more recent version can be downloaded..

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Answer 3

BDAqua

Level 10

240,929 points

Apr 19, 2022 3:35 PM in response to Jeepstur

Good news, take care my friend! :)

Disconnecting from the internet is to prevent the Date to be automatically set to current.

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Why can't the Mojave installer work. I get a error message that reads "unable to install because the downloaded file is corrupt ". I can't install Mojave with this install method. Is there another way ? A DMG Install file would be nice

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