Cannot create a bootable disk with Mountain Lion installer

Question

Cannot create a bootable disk with Mountain Lion installer

Starting downloading and running DiskMaker X.app, version to build install disks with Lion (10.7), Mountain Lion (10.8) and Mavericks (10.9).

From Mac OS X Mountain Lion Installer - Apple Support I downladed 4.45GB Mountain Lion Install dmg

Target disk is a 32GB SD card in a USB reader.

DiskMaker starts formatting the card as Mac OS Extended (Journaled)

After that I get:

“Sorry, your OS X Install app or DMG may be incomplete. Delete your install application, then download it again from the App Store.”

I already had downloaded it again.

I first tried the procedure from a late 2009 24” iMac with Yosemite (10.10) and then with a late 2015 27” iMac with Monterey (12.7)

What do you suggest?

Thank you

iMac 27″, macOS 12.7

Posted on Dec 21, 2024 8:17 AM

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Answer 1

Dec 22, 2024 5:48 AM in response to Daniel Stonek

This is the error I get from DiskMaker X6 while creating a bootable install of El Capitan from Sourceforge (.app)

The application /System/Library/CoreServices/Archive Utility.app cannot be opened for an unexpected reason, error=Error Domain=NSCocoaErrorDomain Code=260 "The file “Archive Utility.app” couldn’t be opened because there is no such file." UserInfo={NSURL=file:///System/Library/CoreServices/Archive%20Utility.app, NSFilePath=/System/Library/CoreServices/Archive Utility.app, NSUnderlyingError=0x600002c14990 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

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Answer 2

Dec 22, 2024 6:41 AM in response to Daniel Stonek

Well, .app file is needed, not .pkg, not .dmg

Using the file from sourceforge.net

sudo Path-to/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume  --applicationpath path-to/Install\ OS\ X\ El\ Capitan.app

did the job.

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Answer 3

Dec 22, 2024 5:10 AM in response to Daniel Stonek

Couldn't finish editing last reply so I took a screenshot

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