#Operating system for usb mac how to#

I would like to have a usb drive that will boot my 2009 MBP on demand instead of booting from the SSD that i recently installed that contains Lion 10.7.5 Ok, this is what i would like to do, i just don't know the best way to accomplish it or if it can't be done. Just to explain a bit more of what i have done and where Im stuck (I apologize for being redundant): What I'm trying to accomplish is to have a thumb drive that I can use to boot my MBP in case of a SSD failure which would not allow me to use the Recovery Drive.Ĭan you tell me what you think the problem is and is there any way to 'unlock' this drive? Ive got to believe there is a way, but I have no idea.

#Operating system for usb mac how to#

Ive tried to figure out by researching online how to 'unlock' the usb flash drive, but no matter what I try I cannot do it. I chose to re-install Lion but when I selected the 'Mac OS X Install ESD, Mac OS X, 10.7.5' usb bootable drive I saw that it said that the drive was locked. I created the USB bootable drive and all went well, however, when I plugged in the USB drive and powered on my MacBook Pro while holding the 'option' button, I was presented with the OS X Utilities screen. I wanted to create another USB bootable drive and after creating it I wanted to 'test' it to see if I could use it to boot up my MBP rather than using the SSD. I recently, with your help, replaced the HD with a SSD and the performance difference has been excellent.