Unable to reinstall macOS X Lion on old MacBook Pro

Hello, i bought a MacBook Pro from 2010/2011 the seller dont know exactly. The Mac was without hdd so i put an sdd, the computer power in and log to the internet recovery and when i click on reinstall MacOS lion i get an error, i try also usb but error is the same. The message says an error occurred while preparing the installation. Try running this application again



[Re-Titled by Moderator]

Original Title: help recover mac os lion

Posted on Jul 10, 2025 03:12 PM

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3 replies

Jul 11, 2025 10:51 AM in response to the_user_

the_user_ wrote:

Hello is an early 2011 13'' model purchased in may 2011.
im able to load the online Installer but from Utility disco i get the error while checking Apple servers

You will need to use Fix #3 in the article I linked in my last post.


This is your easiest & best option for installing macOS unless you have access to another working Mac from 2007 to 2018 so you can create a bootable macOS 10.11 or 10.13 USB installer (depends on model of the other Mac).

  • macOS 10.13 --- model Late-2009 to 2018
  • macOS 10.11 --- model 2007 to 2015


This model shipped with an OS X 10.6.6/7 Restoration DVD (gray DVD for a specific model computer). The original owner should have this restoration DVD.


SSD model is a crucial BX500 And i can see it from utility disco and I was able to format it.

I hate to tell you this, but that SSD is a piece of junk. It quickly slows down after writing data for about 40 seconds and it over heats very easily causing even lower performance (you will see first hand that an OS installation will cause this SSD's performance to drop significantly....it will take a long time for that performance to be regained....not sure how long though). Plus it has an extremely high rate of failure. The Crucial MX500 SSD is the good model, but I believe it may have been discontinued although you may find them still available.


Unfortunately it is very difficult to find a good quality 2.5" SATA SSD these days since most of them are just low end budge consumer models. It is very hard to figure out which ones are the low end models & which are the actual good models since even a respected vendor/manufacturer like Crucial tends to sell some junk models.


the usb was Made using the Original Apple os lion

I am not aware of any method of creating a bootable Lion USB installer.


in the log of the setup i get MacBook Pro unknown

Is this from the Recovery Mode installation or attempted Lion USB install?


I would avoid installing Lion through either method. People tend to encounter more issues installing older versions of macOS (10.7 - 10.9) through recovery mode than the more recent versions such as 10.11 & 10.13 although you did see first hand that 10.13 has problems at the moment with Internet Recovery Mode (those 10.13 issues can be worked around).


Jul 10, 2025 08:16 PM in response to the_user_

What is the make & model of the SSD?


What is the exact model of the laptop? You can get the exact model by entering the system serial number on the check coverage page here (please don't post the serial number on the forum since it is considered personal information):

Check Your Service and Support Coverage - Apple Support


Try booting into Internet Recovery Mode using Command + Option + R to see if you can access the online macOS installer for macOS 10.13. Some Macs may still boot to the online installer for the OS which originally shipped on it from the factory.....or 10.7 Lion which is the oldest online installer available. If you can access the High Sierra installer, then you may need to use Fix #3 in the following article:

https://mrmacintosh.com/how-to-fix-the-recovery-server-could-not-be-contacted-error-high-sierra-recovery-is-still-online-but-broken/


How did you create the macOS USB installer? And what version is the USB installer?


Once we know the exact model, we will know whether an OSX 10.6 Snow Leopard DVD is an option and which one (whether retail or restoration & exact version if retail). Also it will tell us which versions of macOS can be used on it.


Jul 11, 2025 12:51 AM in response to HWTech

Hello is an early 2011 13'' model purchased in may 2011.

im able to load the online Installer but from Utility disco i get the error while checking Apple servers

SSD model is a crucial BX500 And i can see it from utility disco and I was able to format it.

the usb was Made using the Original Apple os lion

in the log of the setup i get MacBook Pro unknown

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Unable to reinstall macOS X Lion on old MacBook Pro

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