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Os Lion



Mac OS X Lion is only available as a $20 from the Apple Online Store (not the App Store) when you purchase

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you will e-mailed a redeem code which you use in the App Store (not the Apple Online Store).


First of all, you will need a machine with Windows to run Mac OS X on Windows. Note: your Windows OS should to be 64-bit, since OS X Mountain Lion is a 64-bit OS. You will also need more than 10 GB of unused hard drive space. Right click on 'My Computer' to choose 'Properties' to check the stats of your computer. Mac OS X Lion1 (version 10.7; marketed as OS X Lion)2 is the eighth major release of Mac OS X, Apple's desktop and server operating system for Macintosh computers. A preview of Lion was publicly unveiled at Apple's 'Back to the Mac' event on October 20, 2010. It brings many developments made in Apple's iOS, such as an easily navigable display of installed applications, to the Mac, and includes.

From macOS Sierra Apple stopped the Purchased section of the App Store showing previously downloaded

OS's.


If you want to try internet recovery follow this,


The certificates for several of Apples OS's expired in October 2019, Apple have been very poor at getting these updated on their Recovery Servers with valid certificates. This may be the problem you are experiencing.


Try this workaround, we are going to set the time and date on your mac to a date previous to the expiry date of the certificates.

Os Lion


Connect your mac to your router via cable, not WiFi


Boot to your Recovery HD, click on Utilities in the menubar select Terminal.

Os Lion

Os Lion


Make sure WiFi is switched off, it can reset the date back to today.


Enter a new date, for example or just copy and paste

Os Lion Dmg



press Return

enter your password

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press Return


If Terminal returns an error saying sudo : command not found, then try again without sudo.


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Now try downloading the OS.

Os Lion

If this works then when the OS is installed and booted up you can Open System Preferences> Date & Time

and reset the time back to today.


Your 2019 iMac can install Yosemite or El Capitan which are available as free downloads.

If you want more information about that then ask.

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Aug 23, 2020 8:35 PM