Mac os lion system profiler

Make sure your Mac can run Mountain Lion. In the list on the left, make sure Hardware is selected, and look for the line that says Model Identifier.

System Information (Mac) - Wikipedia

Keep in mind that the comma should be interpreted as a decimal point, so 5,6 is newer than 5,5, and 6,1 is newer than 5,6. Even though 2 GB is the official minimum, I strongly suggest having more, if your budget allows. And, in fact, a full install of Mountain Lion can, under optimal conditions, fit in less than 6 GB of disk space. But my experience suggests that in real-world use, 8 GB is cutting it too close for comfort.

Apple OS X Mountain Lion review: iOS-like features help unify your digital world

I recommend starting with at least 20 GB of free space before downloading the installer. First we need to determine if the Mac s being considered for upgrade are going to meet Lion's minimum system requirements. Apple suggests that you have:.


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To determine if you have the suggested system requirements, open up the About This Mac pane by clicking on the Apple Icon in the Menu Bar. Then select About This Mac. Here you will see your processor type, system allocated memory, and the installed version of Mac OS X. If your machine is running Mac OS X Now that we know the machine meets suggested system requirements, the next step is an important one.

We want to make sure that all of the software running on the current setup is going to be compatible with Lion.

Upgrading from Mac OS X Snow Leopard to Lion: Installation guide

In essence, any installed software that isn't an Intel or Universal binary will no longer work. One thing you might want to re-evaluate is what software is a priority for your users.


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  • There may be some PowerPC applications installed; however, if the user doesn't require them, then it shouldn't be a hurdle when upgrading. The best way to find out if the software you are running is capable of working under Lion is to open System Information formally System Profiler. Once open, scroll down the left hand column and select Applications.

    Here you will see all applications installed on this machine, their version numbers, and their type; PowerPC, Universal, and Intel.

    About This Mac & System Profiler

    Scroll through the list and determine if there are any installed applications running as a PowerPC binary and whether or not these are applications that the user will require. Additionally this information can be found in Activity Monitor and in the Get Info pane of any installed application as well. The next step is to back up your drive and run Software Updates. I recommend running a back up before running Software Update. Though rare, sometimes an update can cause unforeseen complications or even leave your system in a non-bootable state.

    Having run a back up first will provide a safety net in the event something goes awry.


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    • As far as backing up goes, Leopard offers lots of options. Time Machine is by far the easiest and most effective way to back up your Mac, and the one we will use for this guide.

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      Plug in an external drive with equivalent disk space or greater available to the drive you're backing up and set the drive to be used as backup when prompted. This creates a full back up of all the contents of your drive and can easily be used with Lion to restore any data during or after installation.

      Another option is to use the Apple-supplied Disk Utility app, located in the Utilities folder of your Mac's hard drive. If you've never used the Disk Utility app, I'd recommend sticking to a Time Machine back up, since using Disk Utility requires using additional hardware. There are plenty of third-party applications such as SuperDuper!

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      Now that we have all of our ducks in a row, its time to install Lion. Apple recommends that you have 4 GB of space available for the download and install of Lion; however, I suggest that you have a minimum of 8 GB just to be safe. Upgrading sometimes leaves behind a Previous System folder that will often take up what little bit of space is available on the drive. If you're left with 1 GB or less after the upgrade, it can cause your Mac to become sluggish or unresponsive.