MacOS Sierra

[Matthew Dykstra]

Hello,

 

I have an old SSD from my mothers old computer its a 250 gig but I cannot get it to install Sierra which I need for ProPresenter where I volunteer as it does not support High Sierra which my MacBook Pro 2011 will install under Internet Recovery. But the problem is I need to install it on a 2014 MacBook Air with Big Sur as a USB Drive as my older MacBook 2011 every usb port has quit so any help would be appreciated. I got Snow Leopard on it but it will not Boot to it. It does not even bring up the circle that tells me it is loading the OS. I would not be opposed to wiping the drive and doing a fresh install of Sierra OS but how do I get this to work.

 

Thank you in advance

[SupaKomputa]

https://osxdaily.com/where-download-macos-installers/

 

you can also search in torrent site for a plain image (not hackintosh).

[Matthew Dykstra]

Tried That and I have downloaded all the MacOS From Leopard - Big Sur so I have that but... I need to install it USB on my MacBook Air Before I install the SSD into my old MacBook Pro but no matter what I do when I try to boot the current OS Snow Leopard From the USB SSD it locks and will not load

 

Thank you for your help

SupaKomputa

[xcluse]

have you tried updating the firmware? your computer can't boot to an usb with a version of macOS on it that is way older then the installer on your usb

[Matthew Dykstra]

Hello Xcluse,

 

Currently the SSD Has A Fresh Install of Snow Leopard I installed through my 2008 MacBook but when I try to boot The SSD on my MacBook Air to Finish and Install what I have to, to get to OS Sierra it will not boot

[xcluse]

do i understand correctly that you are trying to boot your air from that ssd? if thats correct what exactly happend to the internal one from the air. (im having trouble visualizing your problem can you make a list with all your computers and tell me what wrong with each of them hopefully I can help you solve the problem)

[Ashleyyyy]

you can download old OS's here, official link from apple:

https://support.apple.com/en-gb/HT211683

it will open the App Store on whatever Mac you use and downloads the isntaller for the OS you selected. 

 

then, follow this page to make your bootable USB:

https://support.apple.com/en-us/HT201372

[CrowDazzle]

If I'm reading this correctly the reason Snow Leopard isn't booting is because the earliest OS that the 2014 Air will support is mavericks, so it will never boot Snow Leopard.

2014's should boot off USB ootb so I would suggest downloading Sierra on a working Mac and downloading https://diskmakerx.com/ to create the usb drive.

 

I don't recall if you can do a recovery boot off the internet with 2014 models but might be worth a shot since your usb ports are toast on the older 2011. Are the USB ports truly dead or not working while booting? The reason I ask is most of the 2011 laptops didn't support usb boot drives.

[LogicalDrm]

-> Moved to Linux, macOS and Everything Not-Windows