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#Mountain lion install disk download how to
#Mountain lion install disk download mac os
#Mountain lion install disk download pro

Call a nearby Apple store and make an appointment with the Genius Bar/Grove/whatever it's called now to have them install the OS for you (or at least create a bootable USB install drive).

Try the Internet Recovery again using a wired connection.

I would probably try the following (skip any steps you've tried or can't do): You're in a slightly tricky situation if you can't get the internet recovery to work. (above link is also on the page to high sierra) It also possible to get form apple store if you haven't removed everything on your disk. They also warned about other site might have virus in there releases, this made me got worried so I have my own release here(just joking its from the official apple site): Most of the guides had links to thiere own High sierra release (seems like this is the best option to use since it still gets updates and work with old macs).

#Mountain lion install disk download how to

I also found a lot of video guides with instructions on how to install the osx on the drives. However it worked with a harddrive with external power source. I tried diffrent usb memory sticks but none work. I had same issue on imac from mid 2009 with os x Lion. Install from USB drive with own power supply, seems not to work using usb stick.I then purchased a caddy and replaced the optical drive with the SSD inside the caddy. Installation succeeded when installing onto the harddrive connected via USB. Turns out that something was wrong with the SATA/IR cable connecting the drive to the logic board. Which translates to something along the lines of "The installer payload failed signature check".

#Mountain lion install disk download pro

Using a Macbook Pro with OS Sierra I got an USB Boot disk created, ran disk utility and started the install, which after about half an hour stopped the installation with the message: Does anybody know how to get fix this installation issue?

#Mountain lion install disk download mac os

The error message is in Danish and translates to something like: "Can’t download the additional components needed to install Mac OS X". Here's what I've done: installed SSD, connected power, Ethernet, booted into Internet Recovery using Command+R, formatted the disk using Disk Utility (Mac os Extended - Journaled), started re-install.īut then it gets the bar filled, stalls there for long time and the it I am trying to fix a Macbook Pro from around 2012/2013, the hard drive failed so I replaced it with a Sandisk 120GB SSD and I am trying to reinstall OS X Mountain Lion using Internet recovery.