Create a bootable drive of OS X El Capitanīefore you erase macOS Sierra from your computer, you need to download OS X El Capitan from the Mac App Store. * To begin with, make sure you have a Time Machine backup for all your files so that you can restore all your data by the end of the reinstallation process from Settings -> Time Machine. * You can't run the El Capitan installer within macOS Sierra, because the Mac always wants to have the latest version of macOS. * You can't boot your Mac into Recovery mode and revert to El Capitan because this method can only be used for reinstalling the system that's currently on the Mac, which in this case is Mac OS Sierra. For critical systems, it is a good idea to have a hardware backup (of similar vintage) in addition to your bootable system backup and data backups.Before you start, pay attention to those IMPORTANT notes: You can try to find a machine that originally came with 10.5 ( might be useful). This is due to the fact that the new hardware requires new drivers that are only included in the special build that the machine comes with (also later included in subsequent minor releases). In general, new Macs may not be able to boot older OS releases (either major, like you want, or even minor). Why Can't You Just Boot the Leopard Install DVD? Use System Preferences's Startup Disk preference pane to choose the Leopard partition for subsequent boots.Restart your MacBook Pro, holding down Option choose the Leopard partition from the boot menu.If you are lucky, your MacBook Pro should now be able to boot from its Leopard partition.Run Software Update to install the latest updates, or at the very least, the 10.5.8 update.Boot the temporary machine off the newly installed Loepard partition.Be sure not to install onto any of the temporary machine's partitions!.Install from the DVD onto the partition on your MacBook Pro.Connect your MacBook Pro to the temporary machine with a FireWire cable.Start your new MacBook Pro in FireWire Target Disk Mode (hold down T whileīooting, or click the “Target Disk Mode…” button in the Startup Disk preference pane of System Preferences).Start your temporary machine with the Leopard DVD (hold down C while booting or hold down Option and choose the DVD from the menu).Without an already-installed 10.5.7 (or better), you will (temporarily) need another machine that can boot your Loepard DVD. or Install via Another Machine with Target Disk Mode If you do not have such a backup, resolve to start making them as soon as you get your new system running (I use SuperDuper!, but Carbon Copy Cloner also seems to do a good job). If you have a bootable backup of your previous (at least 10.5.7) OS that your ran on your previous Mac, then you should be able to boot that. Your retail Leopard disks are probably of an older minor release (maybe even 10.5.0). Can anybody help me to solve this issue?Īccording to, the most recent MacBook Pros are capable of running 10.5, but it has to be at least 10.5.7. I am supposed to be portable with my working studio equipment now, but until so far the new MacBook Pro has been nothing but a chain around my leg. Is there a way around it? Can't run my Leopard install DVD. But as I have heard, there is a block on degrading from a newer system to an older one. So I am eager even to downgrade the new MacBook Pro to an old Leopard. I need this new computer to finish an important project. Can somebody give me directions of how to get around this issue? But the problem is that the computer doesn't allow me to run the Leopard install DVD. For this reason I have partitioned my internal hard drive to hold both Snow Leopard in one partition, and Leopard on the other partition. I have a stand alone copy of Leopard bought at an Apple Store (not the grey Mac OS X DVDs usually shipped with computers). Very soon after working around in the Snow Leopard system, I met with compatibility issues concerning expensive software like Maya 2009 and Adobe CS4. I just got my new MacBook Pro which was shipped with Snow Leopard installed.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |