Installing DMG or PKG from command-line on Mac, Apple TV

• mounting dmg

hdid package.dmg

or, hdiutil attach package.dmg

or, hdiutil mount package.dmg

• change directory

cd /Volumes/package/

• install pkg

sudo installer -verbose -pkg package.pkg -target /

or, sudo /usr/sbin/installer -verbose -pkg package.pkg -target /

• unmounting dmg

hdiutil detach /Volumes/package

or, hdiutil detach /Volumes/package -force