For apple instal High Sierra upgrade#
For apple instal High Sierra mac#

For apple instal High Sierra upgrade#

To run an automated upgrade to macOS High Sierra, where two distribution-style flat packages stored in /Users/Shared are installed following the upgrade, please run the command shown below with root privileges: Productbuild –package /path/to/component.pkg /path/to/distribution.pkg You can convert a component flat package to be a distribution-style flat packages by running the command below: This is a requirement that Apple first introduced for the OS X Yosemite installer and it still applies to macOS High Sierra. Learn about adapters for the Thunderbolt 3 (USB-C) or USB-C port on your Mac.Something to be aware of is that if you want to add any additional packages, they must all be signed or unsigned distribution-style flat packages.

You can't use target display mode with later versions of macOS, or with Boot Camp and Windows. Make sure that your iMac is using macOS High Sierra 10.13.6 or earlier. Some third-party keyboards and older Apple keyboards don't support target display mode. It might also help to use the keyboard that came with your iMac. keys as standard function keys” is selected, target display mode uses Command-Fn-F2 instead of Command-F2. Then press Command-F2 again.Ĭhoose Apple menu  > System Preferences, then click Keyboard. If you're currently logged in to the iMac that you want to use as a display, choose Apple menu  > Log Out to return to the login window. If that doesn't work, try these other solutions: Unplug the Thunderbolt or Mini DisplayPort cable from the other Mac, then plug it back in. If your iMac doesn't show the desktop of your other Mac, try these steps first: To control the brightness of the iMac display while it's in target display mode, use Displays preferences on the other Mac, or the brightness keys on the keyboard of the other Mac.

For apple instal High Sierra mac#

You can then use the sound and media keys on the keyboard of the other Mac to adjust volume and control media playback.

Select the iMac as the device for sound output. If you want to use the built-in speakers of your iMac to play audio from the other Mac:Ĭhoose Apple menu  > System Preferences, click Sound, then click Output. To use external devices with your other Mac, connect them directly to the other Mac, not to your iMac. The other Mac can't use the iMac computer's built-in camera or ports. For example, if you begin playing music on your iMac and then enter target display mode, the music doesn't pause on your iMac. Or disconnect the cable, or restart either Mac.Īpps that were open on your iMac when entering target display mode remain open in target display mode. To exit target display mode, press Command-F2 again.

You should now see the desktop of the other Mac. Press Command-F2 on the keyboard of the iMac. You can use more than one iMac as a display, if each iMac is using a Thunderbolt cable to connect directly to a Thunderbolt port on the other Mac (not the other iMac). Make sure that the other Mac is started up and logged in to a macOS user account.Ĭonnect the two computers using the appropriate Mini DisplayPort or Thunderbolt cable. Make sure that your iMac is started up and meets the system requirements above. The cable connecting the two Mac computers must be a Mini DisplayPort cable. The cable connecting the two Mac computers must be a Thunderbolt or Thunderbolt 2 cable.Ģ4-inch and 27-inch iMac models introduced in 20 The other Mac that you're connecting it to must have been introduced in 2019 or earlier and have macOS Catalina or earlier installed. The iMac used as a display must have macOS High Sierra or earlier installed. To use any of these iMac models as an external display: The following older iMac models can be used as an external display when plugged into another older Mac model.