Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address

The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Steve Darkly Author

Level 1

8 points

Fix for 10.12 createinstallmedia "not a valid volume mount point" error

The createinstallmedia command is broken in the currently available (as of May 2022) version of macOS 10.12 and following Apple's own guidance on creating USB installation media will result in the error "not a valid volume mount point".

Here's how to fix it in Terminal.

sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist

The command

sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Sierra.app

will now work correctly.

Posted on May 19, 2022 3:51 AM

Best reply

BDAqua

Level 10

240,293 points

Posted on May 20, 2022 10:32 AM

Excellent! :) 👍

View in context

Fix for 10.12 createinstallmedia "not a valid volume mount point" error

Similar questions