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.

But the network configuration is OK.!

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. Mac os 10.6 8 upgrade to lion 10.8.

Option 1

OS X 10.6 also built off of the previous OS (hence its name) with further enhancements such as faster disk ejecting, quicker Time Machine backup, faster boot and shut down times and faster OS. Bootable disk is created from your own Mac so you know it's legitimate. Highly efficient boot disk suite. A number of other disk related tasks and tools available. Saves you from having to download a full Mac OS X installation. It's fast and reliable. Has a simple, user friendly interface that allows anyone to create a USB boot. 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.

Mac Os X Lion Boot Disk Download

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: Java for mac mojave.

Os X Lion Boot Disk Harrow

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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.

Os X Mountain Lion Usb Boot Disk

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.