I have downloaded a dmg file but when I click on it it keeps verifying.
I've also tried to go to
/System/Library/CoreServices/Installer.app but I can't click on the .dmg because it is greyed out.
How can I open it?
Ask Different is a question and answer site for power users of Apple hardware and software. It only takes a minute to sign up.Sign up to join this community
You can mount the DMG and skip verification without turning it off. I thought about it.
Open Terminal and type in:
sudo hdiutil attach -noverify /Path/To/Your/DMGFile.dmg
If you have the DMG file on your Desktop, and the DMG was named "Broken.DMG" you could type in something like this:
sudo hdiutil attach -noverify ~/Desktop/Broken.dmg
That should help you out.
You can skip verification by opening Terminal and typing in:
sudo defaults write com.apple.frameworks.diskimages skip-verify TRUE
This will stop the verification of DMG files permanently. After you've managed to skip the verificatio and open that file, it would be a good idea to re-enable the verification by opening Terminal again and typing in:
sudo defaults write com.apple.frameworks.diskimages skip-verify FALSE
The verification is used to make sure the
.dmg package is not corrupted. You'd better wait the verification to be done.
If you really wanna skip the verification, execute the following commands in the Terminal,
# Disable the "Are you sure you want to open this application?" dialog defaults write com.apple.LaunchServices LSQuarantine -bool false # Disable Disk Image Verification: Verifying ... defaults write com.apple.frameworks.diskimages skip-verify -bool true defaults write com.apple.frameworks.diskimages skip-verify-locked -bool true defaults write com.apple.frameworks.diskimages skip-verify-remote -bool true
To reverse the settings,
defaults delete com.apple.LaunchServices LSQuarantine -bool false defaults delete com.apple.frameworks.diskimages skip-verify defaults delete com.apple.frameworks.diskimages skip-verify-locked defaults delete com.apple.frameworks.diskimages skip-verify-remote