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).

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'. 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? 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.

Lion installer