While I knew there was a way to do this, I’d never had to try it until now.Īn update 4/27/10, AppleCare got me the replacement video card. This may be old hat to many but I’ve got a hunch it’s news to others. I like screen sharing because then I can use the resources from both machines. Now you can shutdown both systems and use screen sharing or continue to work this way. T If your target Mac is turned ON, go to System Preferences > Startup Disk and select Target Disk Mode. You can now navigate to System Preferences, choose Sharing, and check the Checkbox for Screen Sharing. Restart your Mac and press the ‘ T ’ key until you see a FireWire icon on the screen. Your target machine is now booted off the remote machine. Use the right arrow key to select the gold remote disk, then click the return key. You’ll see two disks, one should be the standard silver disk icon and the other a gold remote disk icon.Find the line that starts with the word 'linux' and add the following line at the end of it. When the GRUB boot menu appears, press 'e' to edit it. Boot into Emergency mode in Ubuntu 20.04 LTS. Boot the target console by holding down the Option key. If you don't want to boot into normal mode, type 'reboot' and press ENTER from the maintenance mode to restart your system.Boot the disabled machine in Disk Target Mode by holding down the “T” key when turning on the physical machine.First, you’ll need a FireWire 800 cable or with older equipment a FireWire 400 cable will work.
I figured it would be nice to label how to do it. This basically lets me use my MacBook Pro as a bridge until I get the new video card. A friend, Kyle, told me how to use Target Disk Mode to boot my Mac Pro on my MacBook Pro, which let me enable Screen Sharing without trying to sort through the configuration files. In the meantime, I was stuck without being able to use Screen Sharing. Thank goodness for AppleCare because the card is still $200. That was Saturday, and I’m waiting on the replacement card. It’s been a terribly busy three weeks, needless to say when I got back to working my Mac Pro video card failed.