An installation error occurs sometimes for when upgrading from OS X Snow Leopard to OS X Lion “Can’t download the additional components needed to install Mac OS X” – Check your network configuration as the install needs to pull down software over the internet.
Unlike previous versions of Mac OS X, Lion (OS X 10.7) doesn’t ship on a bootable disc—it’s available only as an installer app downloadable from the Mac App Store, and that installer doesn. For earlier versions of Mac OS X, including Mac OS X Mavericks 10.9, Mac OS X Mountain Lion 10.8, Mac OS X Lion 10.7, Mac OS X Snow Leopard 10.6, Mac OS X Leopard 10.5, Mac OS X Tiger 10.4, and before, the process to obtain those installers differs a bit. Downloading Mac OS X Installers from App Store “Purchases”.
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Check that Software Update can connect directly to Apple Software Update Servers not a custom internal one, remove any Managed Preferences if it is a managed host.
Option 1
If that still doesn’t get rid of the message I have found on a device that the drive needed to be reformatted – the only thing different about the drive I was trying to install to was that it had a Boot Camp partition on it The Boot Camp partition might be a red herring but certainly reformatting the disk solved the issue.
So:
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clone the main HD drive to an external disk use CCC – link below
boot from the external
erase/reformat the main HD – use HFS Extended Journaled
clone back the main HD from the external
reboot from the main drive
run the installation upgrade again
This time – no problems.
If you don’t care whats on the disk just erase it and run the upgrade, I wanted to keep all the data intact in my example, hence the clone back.
Cloning courtesy of the fantastic bombastic CCC.
Option 2
Another potential solution is to remove any RAM over 4GB run the install and then put the additional RAM back in after – even then try and limit the RAM slots to one, so not 2GB in each – rather 1 slot with 4GB.
Download Mac OS X Lion 10.7.5 DMG free standalone setup. The Mac OS X Lion 10.7.5 DMG is an upgrade of OS X version 10.7 to improve the stability, compatibility, and security of the Mac.
Mac OS X Lion 10.7.5 Review
Mac OS X Lion 10.7.5 DMG is an upgrade of OS X version 10.7 to improve the stability, compatibility, and security of the Mac. It is recommended for all OS X Lion users and includes general operating system fixes. There are many great features are security tools are added to protect the Mac and user’s privacy. The OSX Lion V10.7.5 has introduced Aqua user interface elements, which includes button and progress bar. The red, yellow and green buttons in the window decorations have also been smaller with the little bit more attractive design.
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It includes Gatekeeper, a new security feature that helps Mac users to keep their Mac safe from malicious software by giving more control over what apps are installed on the Mac. The 10.7.5 update also includes fixes that resolve an issue where icons in Launchpad may get rearranged after a restart, improve Wi-Fi reliability for iMac, resolve an issue using Spotlight to search an SMB server and improve compatibility connecting to Active Directory servers.
An amazing update in this version is improved Apple’s screen management tool. In the new updated version of OS X Loin 10.7.5 now advanced interface-related feature included that is Mission Control, which has nothing to do with the iPad. It’s basically an iteration of Expose, the desktop-management tool that shrinks and spreads the applications all over the screen so users can switch between them easily. Another enhanced features in new Lion that most of the users love is full-screen mode. Loin users now enable automatically logging into a NIS account. This update also brings improved Wi-Fi reliability for the iMac. In summary, OS X Lion 10.7.5 got all the necessary tools and features to provide more creative, secure and powerful working environment to its users. You can also Download Mac OSX Lion v10.7.4DMG Free.
Features of Mac OS X Lion 10.7.5
Introduced Aqua user interface elements with button and progress bar
Resolve an issue using Spotlight to search an SMB server
Improve compatibility connecting to Active Directory servers
Easier to use and more powerful in term of progress and security
Multiple versions of documents saved automatically
Enables users to automatically logging into a NIS account
Click on the button given below to download Mac OS X Lion 10.7.5 DMG free. It is a complete offline setup of Mac OS X Lion 10.7.5 with the direct download link. You can also download Mac OS X Mountain Lion 10.8.5
Download Mac Os X Lion Installer
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