How to access mac hard drive from another mac. When your failed mac hard drive is mounted on another working mac by using target disk mode use stellar data recovery free edition for mac to scan and recover your lost deleted or inaccessible data from the hard drive. Steps are as follows. If you dont have a bootable backup or a way to get a mac drive you will need to boot the computer from another operating system.
From the apple menu select system preferences. Connect your macs via a firewire or thunderbolt cable. You need to go to system preferences on the mac you are connecting to and enable sharing.
Click the apple menu and select system preferences. First try to boot your mac in recovery mode holding down cmd r on restart. In system preferences from the view menu select startup disk.
You can also enter target disk mode by rebooting your mac and holding down the t key as it boots. In the startup disk preference pane click target disk mode. Enter the user name and password for the other mac and you will be mapped.
Once enabled you will see where you can give a share name and what folders you want to share. Click the startup disk icon and click the target disk mode button to restart your mac in target disk mode. If that doesnt work try for internet recovery which is restart and hold down cmd opt r.