![]() So people who upgraded an existing Mac and bought the Lion OS from the App store can create a USB install disk but people who bought a new Mac apparently not - at least not easily. Repeat for each DIMM in succession until. The first thing to do is to remove and reinstall ensure that it is firmly in place. Fortunately this is easy to test for: shut down the computer, remove one RAM DIMM at a time (remove in pairs on the Mac Pro or PowerMac G5), then reboot. So then I decided to make a USB install disk so I could re-install Lion a lot quicker but that Install Lion app is missing since I didn't buy the Lion app from Apple, it came as part of the new MacBook pro. Youre right, three beeps point to a problem with the RAM. I eventually found tons of people in various forums on the net who were complaining about the same thing.Įventually called Apple support - all they could come up with is to re-load and re-install Lion, a 3 hour exercise over the net and I have a 6 Mb/s download speed. ![]() ![]() None of the passwords I had used worked - I double checked the password on the guest account on the old MacBook and it worked fine there but not after the account was transferred to Lion. What I ended up with after time machine was done is an automatic log into a guest account (no other accounts) requiring a password. So at that point I decided I might as well try out Lion and migrated from my time machine external Turns out it came with Lion 10.7.2 pre-installed and no install disks. In other words, the Snow Leopard disc youre trying to boot from contains a. If your MacBook Pro is an Early 2011 model which originally came with two grey installation DVDs, then you won’t be able to use the white retail Snow Leopard DVD otherwise, you should be able to use it. At worst, reset the PRAM: keep P + R + Command + Option pressed on startup until the bell rings 3 times. A looping three beeps in between three seconds during startup is your iMacs. Lark, do the three beeps repeat every five seconds or so If they do, then that would indicate a problem with your MacBook Pro’s RAM. Simply press key C until the device starts from the DVD. ![]() I assumed, wrongly, that thus refurb would come with SL installed and SL install disks. If the device is open anyway due to battery problems, I would insert a new SSD and start the Mac from a DVD with a burnt Mint ISO on it. ![]() I specifically bought this particular model (2.3 GHz rather than 2.4 GHz) of the 13-inch MacBook pro because it was initially shipped with Snow Leopard. You mentioned trying a Snow Leopard DVD, but what kind of DVD (restore, retail, burned) and how did you try booting it (Startup control panel, installer on. Click to expand.No, you're not missing anything. ![]()
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