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10.7: How to get a full Lion install disc for a new MacBook Air or Pro
Authored by: cksum on Sep 07, '11 07:29:05PM

Thanks for this Charles. I tested it and it does indeed work just fine. A few things to note from my experience.

1. You don't have to worry about the installer restarting. It isn't timed. The window will remain there asking for user input till it gets it.

2. You don't need to force quit the installer. Just right click on the Dock icon and select "quit". The installer will ask for confirmation and shutdown. That's it.

3. I couldn't get it to install within Lion on an external partition. It shot up an installation screen with a progress bar, but when I rebooted, it didn't actually install Lion on the target volume. But I still had the installation files and the partition read "Mac OS X Install" so I selected that, and then it went through a proper install sequence, putting a fresh copy of Lion on the drive. Thus I think if you copied the entire folder and all it's contents (not just the InstallESD.dmg) to your target drive and called it "Mac OS X Install", you should be able to boot from it and finish off the installation that way. It would just take a few more minutes having to copy the files over but at least you won't have to go through the pain of ever downloading it again.

I'm sure it would work using the InstallESD.dmg from boot, but it does not if you run the installer within Lion.



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10.7: How to get a full Lion install disc for a new MacBook Air or Pro
Authored by: CharlesS on Sep 13, '11 07:44:36PM

In my experience, the restart *is* timed I left this running and walked away, and when I got back, the TextWrangler document I had left open was prompting me to save it before quitting.



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10.7: How to get a full Lion install disc for a new MacBook Air or Pro
Authored by: negritude on Oct 10, '11 02:18:15PM

In 10.7.1 on a Mid-2011 Mini, the installer did prompt me after downloading to restart or quit. It did NOT attempt to reboot on it's own. I had open TextWrangler just in case, but it never came to that.

However, if you merely quit normally, all downloaded files will be deleted. You MUST force quit in order to retain the InstallESD.dmg.

It may work differently on a machine that does not come pre-installed with Lion.



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10.7: How to get a full Lion install disc for a new MacBook Air or Pro
Authored by: CharlesS on Oct 13, '11 08:22:37PM

It may be that things have changed in 10.7.1. When I originally did this, it was with the 10.7.0 installer, and it definitely did reboot on its own (following a 30 or 60 second delay after finishing the download). It was similar to what happens when you finish installing the OS. It prompts you to reboot the machine, but if there's no input from you within a certain period of time, it assumes you've walked away from the machine and reboots it.

This may have changed for the 10.7.1 installer, but since it doesn't hurt anything to set up a little insurance against it rebooting, I still prefer to do that, particulary since even assuming that it has changed, there is no guarantee that it won't change *back* at some point.



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