A large number of lines of code will automatically appear on your slowly, do not do anything while this happens. Hold the two keys down together until a black screen appears. Be sure to do this before the Apple Logo appears. When the start-up chime rings and the white screen appears, hold the Command ⌘ + S keys. However, these issues do not occur often. You may also see some effects such as loss of data or damaged OS. Please also note that this method is not encouraged by Apple, but usually works. If you cannot boot into recovery mode or internet mode, this issue may be hard to tackle.īefore we start, please be sure to back up any files on your Mac. “password” with a new password of your choice. passwd /Users/username password and replace “username” with one of the users displayed in the previous step. This lists all of the usernames on the computer – helpful if you don’t know or remember what these are. Type launchctl load /System/Library/LaunchDaemons/ and.

At the prompt, typeįsck -fy and press Enter/Return. This step is optional, but it’s a good idea because it checks the consistency of the hard disk before moving on.At the chime (or grey screen if your chime is turned off), hold down Command+S on your keyboard to enter single-user mode.If all you need to do is reset the password, then that can be done on older OSes from Single User Mode.įrom MacYourself - How to reset your Mac OS X password without an installer disc I've never owned a 1,1 or 2,1 to test.Īs it is a Mac Pro, you have the potential of a third option - you can drop in a new drive with either a full system on it, or a bootable installer. I've successfully booted 4,1 & 5,1 Macs from USB. Personally, I have never managed to boot a 2008 3,1 from USB, though others say they have succeeded. That in itself may depend on precisely which Mac Pro it is. That means your only way to boot from other than the regular boot drive is to either use the original Snow Leopard disk, or attempt to boot it from a USB key. Internet Recovery came later still, in Macs introduced in 2011.

Mac OS X Lion, 10.7 was the first OS to introduce the Recovery Partition.

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