OS X was snow leopard 10.6.8 latest update available for before yesterday (21082011).

Firefox 10.7.5 Mac Hard Drive

Only do this if you have a backup made and you are comfortable with formatting the Mac hard drive.

Carry on for some background on the OS X Lion clean install nonissue.

Yes, you can still perform a clean install with the final release App Store version.

The latest bout of frustration comes from a post on MacRumors titled Lion Clean Install Requires Snow Leopard Disk that apparently quotes Steve Jobs responding to a users question regarding a clean install.

Firefox 10.7.5 Mac OS X Lion Can

This seems to have been improperly interpreted by some as that Mac OS X Lion can not be used to perform any clean install (for clarification: a clean installation of Lion would be a fresh install of Lion as the only operating system on a hard drive or partition, not an upgrade over a previously installed OS).

In fact, many of us who are running Lion Developer Preview have performed clean installs.

I did precisely this in my post explaining how to dual boot Mac OS X Lion and Snow Leopard.

I wont walk through that entire post again, but I can tell you with 100 certainty that I created a separate partition for Lion, and performed a clean install of Lion on that partition, it was not an upgrade of Snow Leopard.

Here are the two separate OS X installations side by side in the Startup Disk preference panel.

Admittedly that is not an official way to do things, but it does work to install a fresh clean version of Lion on any hard drive as well.

The Mac App Store requires Mac OS X 10.6.6, thus installing Lion requires you to have Snow Leopard so that you can open App Store and download Mac OS X Lion.

That is why Mac OS X 10.6.6 Snow Leopard is listed in the OS X Lion System Requirements, this does not mean you can only upgrade Snow Leopard.

I cant speak for Steve Jobs here, but I imagine his short response is aimed at the crash aspect of the users question, whereas if your hard drive completely failed and you had no access to the Lion recovery partition or another Mac, then yes you would need to reinstall Snow Leopard first because that is how you download Lion.

Due to this, its possible Apple will change the install behavior in time for the GM and final release next month, but I find that very unlikely.

All Developer Previews of Lion have included the ability to perform a clean OS X Lion installation on either a separate hard drive or separate partition, this is handled from Snow Leopard, and this works without incident.

On attempting to move a file to trash it froze, showing the lovely rainbow wheel, and when I restarted the no entry sign appeared as mentioned above.

I was not able to back up but saw that data in most circumstances could be retrieved after following the procedure above.

When I reinstalled obviously it was back to factory setting and I have no filesmusicpictures at all: (.

I assume that you have the Mac OS Lion on your computer, and you have 2 partitions, the OS on the second partition, you get a flash memory 16 GB.

Use the disk utility and make 2 partitions one 1.9 GB and the other will be as it is, no need for it, then you format the 1.9 partition as a mac jornal and in the options you must use the GUID option and then format it.

Go to your OS and install it on the 10.9 GB partition Restart your computer and it will boot from the flash with the Lion OSX.

Go to disk utility, and format the main partition on your computer and in the option use the write zero option, to be sure nothing exist from the old OS.

Then go to the Lion OSX on your computer, run it and chose the main partition for the instillation And thats it, you have a pure clean Lion OSX on your computer.

Firefox Update For Mac Os X 10.7.5