MacOS install USB not listed in boot manager on startup

installmacbook promacosssdusb

I have a 2011 Macbook Air (a1370) that was stuck on the boot screen with the spinning wheel.

I booted into internet recovery and from Disk Utility wiped the SSD clean. When I then tried to reinstall Lion through recovery, I kept getting the error "Can't download the additional components needed to install Mac OS X." Avoiding this error, I made an install USB with TransMac and attempted to boot from that, but there are no drives listed, including the internal SSD.

I have tried to reset NVRAM but that did not work. My USB drive is converted to GPT and I have tried different OSX versions. I'm not really sure what to do from here.

Weird time estimate

Weird time estimate

Initial error

Initial error

Install USB partition

Install USB partition

No bootable partitions

No bootable partitions

Best Answer

I finally was able to borrow a friends Macbook and created the installation drive there. It turns out that was the issue, and it booted fine my next attempt. I suppose the error in recovery was independent to my Macbook Air and just needed a reinstall. Because TransMac did not work on different computers, MacOS's, and TransMac versions, I can conclude that creating MacOS installation media via this method does not work.]

Update: I received a second Macbook Air and got the same error in the OSX Lion recovery. This might be an internet problem and it wouldn't due harm to check try a different connection.