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OS X - Operating System General OS operation information and support

OS X Lion FAQs


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RavingMac

 
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OS X 10.7 Lion
Frequently Asked Questions (FAQ)


Why should I upgrade to OS X Lion?

Is my system eligible for the upgrade?

Im concerned about compatibility of my existing APPs with Lion. Is there any way I can check this before upgrading?

What do I do to get ready?

What about having a physical copy (DVD or USB)?

After installing Lion, the installation icon is missing. How can I reinstall Lion?

What if I change my mind, can I go back to Snow Leopard?


Why should I upgrade to OS X Lion?
The decision to upgrade depends upon your needs and the current software packages you are running. Lion adds several new features (Apple claims more than 250) and provides increased security and stability. In the process several legacy software items, including anything that requires Rosetta to operate, will no longer be supported. Before deciding to upgrade be sure to check any essential software you may have for compatibility with Lion.
Some of the new features Lion brings are: Revised File Vault, Auto Save, Versions, and AirDrop (the ability to quickly and easily transfer files between newer Macs). For a complete list of features follow this link: Apple - OS X Lion - Over 250 new features. Read about all of them.
Compatibility with AirDrop varies from model to model, but typically requires that your Mac be no more than a few years old. Follow this link to see if your Mac is AirDrop compatible. OS X Lion: Can I use AirDrop with my computer?

Is my system eligible for the upgrade?
To upgrade you must meet the minimum hardware requirements, which are that you must have an Intel based Mac with the minimum processor of Core 2 Duo, typically 2007 models and later and 8GBs free space on your HDD (although this IS less than you typically should maintain for optimum performance anyway). In addition, you must be running Snow Leopard vs 10.6.6 or later.

Im concerned about compatibility of my existing APPs with Lion. Is there any way I can check this before upgrading?
The best information on a specific application regarding OS X Lion compatibility as well as links to download updates and fixes will generally be available directly from the producer of the software package you are interested in. But, as a first resource and clearinghouse for issues and comments, read this Sticky: App Compatibility with OS X Lion 10.7


What do I do to get ready?
Read this Sticky for our recommendations on getting ready for Lion. Getting ready for Mac OS X 10.7 - what to do before you click "Install"


What about having a physical copy (DVD or USB)?
Apple has announced that Lion will be available in late August this year on USB for $69. If you would like to make your own, here are instructions for preparing a bootable copy on DVD http://osxdaily.com/2011/06/08/creat...-install-disc/ and for a bootable USB http://osxdaily.com/2011/07/08/make-...b-flash-drive/


After installing Lion, the installation icon is missing. How can I reinstall Lion?
During installation of OS X Lion the installer is automatically deleted from your Hard Drive.
To re download Lion:
1) Launch the Mac App Store;
2) While holding down the OPTION key, click on PURCHASES. OS X Lion INSTALL button should now be gray;
3) Click on INSTALL to re-download Lion (you may have to re-authenticate within the App Store with your Apple ID).

What if I change my mind, can I go back to Snow Leopard?
It is possible to downgrade and revert to OS X Snow Leopard, but will probably require that you reformat your Hard Drive. Before you start ensure that you have a current tested backup of your data files. Instructions on reverting are found at the following link: How To Downgrade from Apple OS X Lion to Snow Leopard | PCMag.com

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Last edited by RavingMac; 08-01-2011 at 04:52 PM.
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dominique

 
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hi there
I just read in the FAQ ,' is my system compatible to upgrade' that updating snow leopard to lion requires ox s to be running 10.6.6 or later...

I just rang apple to upgrade my pro mac thats running os x 10.4.11 ( gave them my seriel number) and they said I can upgrade my pro using the new lion? now I am confused..can I or cant I??
thanks
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Quote:
Originally Posted by dominique View Post
hi there
I just read in the FAQ ,' is my system compatible to upgrade' that updating snow leopard to lion requires ox s to be running 10.6.6 or later...

I just rang apple to upgrade my pro mac thats running os x 10.4.11 ( gave them my seriel number) and they said I can upgrade my pro using the new lion? now I am confused..can I or cant I??
thanks
Lion is available two ways:
1) Electronic download from the Mac APP Store, cost $29 USD, this requires OS X 10.6.6 or later to have the Mac APP Store

2) Direct purchase from Apple on USB Flashdrive, cost $69 USD. As long as your Mac meets the minimum hardware spec, Intel Core 2 Duo with 2GB RAM you upgrade straight from Tiger (10.4) or Leopard (10.5) without previously installing Snow Leopard (10.6)

I've always wanted to be smart, handsome and modest. But, I guess I'll have to be satisfied with two out of three . . .
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I am trying to reinstall not a clean install using a USB drive. I am doing this cause about a month ago I load my MBP up and after about 30 sec. in cut off. When I tried to repair it said can not be repaired boot file corrupt. So now when I go to install it, it says Disk Locked. What can I do and is there anyway to fix boot file without an install.
Thanks
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The link for making a bootable USB/HDD of the OSX install wasn't working, but I think you meant to link it to this:
Make bootable OSX install USB/HDD
Just use Mountain Lion in place for the older OS.

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Quote:
Originally Posted by Razormac View Post
Lion is available two ways:
1) Electronic download from the Mac APP Store, cost $29 USD, this requires OS X 10.6.6 or later to have the Mac APP Store

2) Direct purchase from Apple on USB Flashdrive, cost $69 USD. As long as your Mac meets the minimum hardware spec, Intel Core 2 Duo with 2GB RAM you upgrade straight from Tiger (10.4) or Leopard (10.5) without previously installing Snow Leopard (10.6)
Where might one find the direct purchase version from apple? I have been to the apple store and all I keep coming up with is the download version that you need to have 10.6.6 to use. I need to upgrade from Tiger. Thanks.
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To get a copy of Lion, you will need to call Apple and they will sell you the USB version. Mountain Lion is only available as a digital download with no physical copies (unlike Lion)..

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Thanks, I'll give them a call. I find it kind of strange that I have to call a company that has such a large online operation to get a product from them.
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Lion is the previous version of OS X, the current version is available in the App store..

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Be sure to read the Community Guidelines | The more information you provide, the better answers you get, remember GIGO.
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I wonder if anyone can help me with a problem i have. i use a WD My Book World Edition 1tb as my back up drive for time machine. I upgraded to OSX Mountain Lion last night as i use Traktor Scratch Pro for Dj'ing and i needed to have at least 10.8 or newer and i was stil on 10.6.8. Now since ive downloaded mountain lion when i try to do a back up its says time machine couldnt complete the backup to "mybookworld" the back up disc is not available, then i select the drive to use and it then says "there was a problem connecting to the server "mybookworld.local" the version of the server you are trying to connect to is not supported. Please contact your system administrator to resolve the problem. Im not enjoying the new osx at all and this is really annoying me now as i cant back up my macbook anymore...

17" MacBook Pro, Intel Core 2 Duo - 2.8GHz, 4GB 1066MHz DDR3 SDRAM, NVIDIA GeForce 9400M + 9600M GT with 512MB graphics, 500GB Hard drive.
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