ML how many macs i can upgrade?

stark4

macrumors 6502
Original poster
Oct 14, 2008
386
1
Florida
Can someone tell me how is the multiple upgrade of ML works? i want to upgrade my macbook pro and macbook air. I also want to upgrade the iMac at my parents house. I can upgrade to ML with the single purchase?

Thanks
 

Mr. Retrofire

macrumors 603
Mar 2, 2010
5,040
469
www.emiliana.cl/en
Can someone tell me how is the multiple upgrade of ML works? i want to upgrade my macbook pro and macbook air. I also want to upgrade the iMac at my parents house. I can upgrade to ML with the single purchase?
Yes, you can create a bootable flash drive from the InstallESD.dmg (like in Lion). Then use it on all your Macs to install ML. I think the current Mac-limit is 5 Macs.

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so is that mean I can login with my ID on all 3 macs and I should be ok?
No, this is a waste of time. Use the USB (InstallESD) option-much faster (see above).
 

haravikk

macrumors 65816
May 1, 2005
1,490
19
Isn't there a limit in the terms and conditions? Not sure if there's an enforced authorisation mechanism like iTunes, but you can definitely install on at least 4 machines.
 

Cougarcat

macrumors 604
Sep 19, 2003
7,766
2,551
Isn't there a limit in the terms and conditions? Not sure if there's an enforced authorisation mechanism like iTunes, but you can definitely install on at least 4 machines.
Their isn't an authorization limit (after you download it, you can install it anywhere). In the T&C, it says you can install it on all the macs you own.
 

stark4

macrumors 6502
Original poster
Oct 14, 2008
386
1
Florida
ok thanks for the input guys.. So login with Apple ID on AppStore, Buy ML and download the ML dmg file. Transfer the dmg file to Flash Drive and install on the other two macs.

is that what i'm suppose to do?
 

Mr. Retrofire

macrumors 603
Mar 2, 2010
5,040
469
www.emiliana.cl/en
ok thanks for the input guys.. So login with Apple ID on AppStore, Buy ML and download the ML dmg file. Transfer the dmg file to Flash Drive and install on the other two macs.

is that what i'm suppose to do?
Yes, this is fastest option. See also:
http://www.macupdate.com/app/mac/39701/lion-diskmaker
and
http://osxdaily.com/2012/02/17/make-bootable-os-x-10-8-mountain-lion-usb-install-drive/
(note that you do not need to mount the InstallESD.dmg and you do not need to erase the USB flash drive first, because Apples restore functionality in Disk Utility can do this in one step for you)
 

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