I'm sure their is an answer that I have missed but need to find the Mojave dmg that is not damaged. I just upgraded my Mac mid 2010 Mac Pro Tower by installing a new, for me, NVidia K5000. I did this so that I can upgrade Logic Pro X to a newer version. So far I have been unable to find a download for Mojave that will work. Getting the damage message and cannot install messages. I know that Mojave is no longer supported but still would like to find a good copy of it as I cannot afford a new Mac. Any answers or suggestions would be highly appreciated. Thank you.
Looking For Mojave 10.14
- Thread starter GeS
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You should be able to download it via the App Store. This article explains.
support.apple.com
How to download and install macOS – Apple Support (UK)
Download and install current or previous versions of the Mac operating system on compatible Mac computers.
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NONE of the copies of Mojave that you have downloaded are actually damaged. The message that you are receiving is due to them having what is known as an "expired certificate." A "certificate" is a security measure that Apple uses, which they need to periodically renew.
Every 10 years ALL installer certificates expire no matter how old an individual installer program is.
https://tidbits.com/2019/10/28/redownload-archived-macos-installers-to-address-expired-certificates/
When you have an installer for the Mac OS with an expired certificate, you can re-download the installer for the old OS to get one with an updated certificate, or you can set the date on your Mac back to fool the certificate into believing that it is still within the date of its certificate. However, both of these methods aren't 100% sure to work.
The method that does seem to consistently work is to simply neuter the resource in the installer program that keeps track of the freshness date. It's easy to do:
1. Go into the Applications folder.
2. Find the Installer for macOS in your Applications folder
3. Right-click (or Control-click) on the installer and choose “Show Package Contents”.
4. Open the folder named “Contents”.
5. Open the folder named “SharedSupport”.
6. Delete the file named “InstallInfo.plist”.
7. Enter your administer password to confirm.
8. Now the installer for MacOS will work perfectly.
If you don't still have the copy(s) of Mojave that you previously downloaded, you can download another copy from:
macappstores://apps.apple.com/app/macos-mojave/id1398502828?mt=12
Thank you.You should be able to download it via the App Store. This article explains.
How to download and install macOS – Apple Support (UK)
Download and install current or previous versions of the Mac operating system on compatible Mac computers.
Thank you. I tried the link you shared but it will not open keep getting an Error 404.
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I just tried it, and it worked fine. But you can try:
https://itunes.apple.com/us/app/macos-mojave/id1398502828?ls=1&mt=12
You may not be able to download Mojave if you aren't using Safari, or in you already have a copy of the Mojave Installer in your Applications folder.
Thank you again. I finally got the download and got it installed. So far so good. Appreciate the help.
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