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mwm5053

macrumors newbie
Original poster
Dec 10, 2011
5
0
I have a Mac Pro with 10.7.5 (lion) and made a bootable usb in case of trouble. I have recently bought a MBP that 10.5 on it (bought it used) so I wonder if I can use that usb to install lion on MBP any ideas would be appreciated.

Thanks
 

wrldwzrd89

macrumors G5
Jun 6, 2003
12,110
77
Solon, OH
The key here is: Did one computer come with Lion pre-installed, and the other with an earlier OS? If YES, then a USB key created on one computer will not work on the other one. This is true for Mountain Lion too.
 

Fishrrman

macrumors Penryn
Feb 20, 2009
28,348
12,464
The obvious question is:
If you put the USB flashdrive into the MacBook, can you do a "switch-boot" and boot the MBP from the flashdrive?

Try that, and you will have your answer.
 

Weaselboy

Moderator
Staff member
Jan 23, 2005
34,137
15,602
California
I have a Mac Pro with 10.7.5 (lion) and made a bootable usb in case of trouble. I have recently bought a MBP that 10.5 on it (bought it used) so I wonder if I can use that usb to install lion on MBP any ideas would be appreciated.

Thanks

As long as the MBP is capable of running Lion, yes... that will work.
 
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