I was having problems trying to restore the DMG directly, and mounting it first and restoring the contained disc image is what I had to do.

This is similar to the process of making a bootable Lion installer DVD, but I prefer a USB flash drive because its faster, smaller, and I have a MacBook Air so an installation DVD isnt too useful for me.

If you have anything stored on the USB flash drive youre going to lose it, so be prepared for that and back it up.

Lion 10.7 Dmg Mac OS X Install

This is why we mounted the InstallESD.dmg file earlier, because we can just drag and drop the Mac OS X Install ESD image into the Source if you didnt mount the image, you can manually locate and select the image file yourself by clicking on Image.

If youre wondering about the other drives pictured, its because I am dual booting Lion and Snow Leopard, and Recovery HD is the small recovery partition that Lion installs on its own.

This process should work with a standard external USB hard drive too, but I have not tried that specifically.

I get this message when I click download, This version of Mac OS X 10.7 cannot be installed on this computer.

Go and look in your Applications folder for an item called Install MacOSX Lion.

So i just installed a fresh copy of Lion, and I can access my files from my backup from my External HD at a later date, can copy them over, etc.

I guess its just an older machine and thats why, but sometimes the fans spin at 6,600rpm when i am doing pretty much nothing (Chrome, maybe a bit of mail).

I suspect its just a mac issue internally, and not software now.

At least i can take it in and tell them that now, because i need Lion on the drive to access old programmes and files.

Lion 10.7 Dmg Full Back Up

I have an external HD with a full back up of my previous Lion OS.

Can you confirm before i go ahead, something If i install Lion and try and back up to the 300GB Lion partition, will it fail due to lack of space, or.

I prefer Lion. Yosemite is a bit flashy, and kinda crap IMO.

The drive shows folders but no files,, I cannot partition it or do I want to No as my 9 years of photos are on it, Now, I have the lion ox 10.7 on disc and on usb stick, is this the same thing.

There could be other issues too, but its impossible to know without someone being there to see and troubleshoot.

Apple Store could be helpful, but data recovery may be a better option.

It accepts the password, but leads only to the CIRCLE-SLASH sign.

Disk Utility cant repair or restore because problems found with the partition map, and it cant verify system storage.

Anyone got an idea what is wrong here The system is an Intel CPU so thats not it.

I basically followed the instructions from OSX Daily page: Make a Bootable Mac OS X 10.7 Lion Installer from a USB Flash Drive.

Though About.com has a nice set of instructions as well.) I had a copy of the Lion installer.

I just wanted to confirm that this works perfectly with Mountain Lion too.