#MAC OS X LION UPGRADE SIERRA UPDATE#

If you have no Internet connection, then you will have to manually update this setting: This will automatically update the setting.If your Mac has an Internet connection, enter the following command and hit enter:.This will give you your computers time and date setting.In Termina, enter the following command and hit enter:.From the top menu, click Utilities and Terminal.You will see the вЂњmacOS UtilitiesвЂќ window.Your Mac will start up from macOS Recovery.Keep holding these keys until you see the Apple logo or a spinning globe. Turn on your Mac and immediately press and hold the Command (вЊ)-R keys together.Turn off your Mac, you can do so by pressing and holding the power button.Then you can use TerminalВ (Applications / Utilities) to update your date and time settings. However, the option above may not work for you as you may not access System Preferences if your Mac stuck in the middle of a macOS update.You may also want to check the вЂњset date and time automaticallyвЂќ box to turn on the option to set date and time automatically. If your settings are not correct, update them. On your Mac, click System Preferences, then choose Date & Time.Make sure that the date and time on your Mac are set correctly. Simply restart your Mac to see if this fixes your problem.

After trying each step, test to see if youвЂ™ve fixed your issue.

Please try the following troubleshooting tips in order. See also: The macOS Installation CouldnвЂ™t Be Completed Error Fix This article explains how you can fix this problem.

#MAC OS X LION UPGRADE SIERRA INSTALL#

You may see this message when you want to install or reinstall an update or upgrade. вЂњAn error occurred while preparing the installation. A common installation error message that a lot of users are receiving is below: However, you may run into Mac update issues. Updating your Mac to the latest version of the macOS software is usually easy and straightforward. Facebook Twitter Pinterest LinkedIn Print Email

Mac os x lion upgrade sierra