Sin probar, pero si se queja de que Yosemite 'no es mayor que 7', simplemente eliminaría la verificación de versión y la volvería a ejecutar
#!/bin/sh
# Determine OS version
osvers=$(sw_vers -productVersion | awk -F. '{print $2}')
sw_vers=$(sw_vers -productVersion)
# Checks first to see if the Mac is running 10.7.0 or higher.
# If so, the script checks the system default user template
# for the presence of the Library/Preferences directory.
#
# If the directory is not found, it is created and then the
# iCloud pop-up settings are set to be disabled.
if [[ ${osvers} -ge 7 ]]; then
for USER_TEMPLATE in "/System/Library/User Template"/*
do
defaults write "${USER_TEMPLATE}"/Library/Preferences/com.apple.SetupAssistant DidSeeCloudSetup -bool TRUE
defaults write "${USER_TEMPLATE}"/Library/Preferences/com.apple.SetupAssistant GestureMovieSeen none
defaults write "${USER_TEMPLATE}"/Library/Preferences/com.apple.SetupAssistant LastSeenCloudProductVersion "${sw_vers}"
done
# Checks first to see if the Mac is running 10.7.0 or higher.
# If so, the script checks the existing user folders in /Users
# for the presence of the Library/Preferences directory.
#
# If the directory is not found, it is created and then the
# iCloud pop-up settings are set to be disabled.
for USER_HOME in /Users/*
do
USER_UID=`basename "${USER_HOME}"`
if [ ! "${USER_UID}" = "Shared" ]
then
if [ ! -d "${USER_HOME}"/Library/Preferences ]
then
mkdir -p "${USER_HOME}"/Library/Preferences
chown "${USER_UID}" "${USER_HOME}"/Library
chown "${USER_UID}" "${USER_HOME}"/Library/Preferences
fi
if [ -d "${USER_HOME}"/Library/Preferences ]
then
defaults write "${USER_HOME}"/Library/Preferences/com.apple.SetupAssistant DidSeeCloudSetup -bool TRUE
defaults write "${USER_HOME}"/Library/Preferences/com.apple.SetupAssistant GestureMovieSeen none
defaults write "${USER_HOME}"/Library/Preferences/com.apple.SetupAssistant LastSeenCloudProductVersion "${sw_vers}"
chown "${USER_UID}" "${USER_HOME}"/Library/Preferences/com.apple.SetupAssistant.plist
fi
fi
done
fi
Respuestas:
Suponiendo que se refiere a la pantalla de configuración inicial para iniciar sesión, este script puede ayudar
Fuente: deshabilitar el mensaje emergente de inicio de sesión de iCloud en Lion y posterior
Sin probar, pero si se queja de que Yosemite 'no es mayor que 7', simplemente eliminaría la verificación de versión y la volvería a ejecutar
fuente