Can't see internal harddrive in boot up disk utility

[ThePhilgrim]

Hi,

I have just bought a new SSD harddrive for my Macbook Air 2015. I mounted the harddrive successfully in the computer and started it via Internet Recovery.

At this time, in disk utility, I could see the hard drive at 480 gb. I erased it to format it into GUID and Mac OS Extented.

I started the download of Big Sur, bur after a while it gave me an error, telling me that it failed to download. The only thing to do was to restart the internet recovery.

Now, however, I can no longer see the drive in disk utility, and there is no place where I can install the OS. I can't see the disk in terminal using "diskutil list" either. I can onky see "OS X Base System" at 2GB.

It's impossible that there s a hardware problem, but I can't find a way to fix this.

Please help. I'm going slightly mad. I need to fix the computer asap as I need it for work.

Here is what I see:

Disk Utility with "get info" on the side:

20201214-215500 hosted at ImgBB

Image 20201214-215500 hosted in ImgBB

ibb.co

Terminal "diskutil list"

20201214-215535 hosted at ImgBB

Image 20201214-215535 hosted in ImgBB

ibb.co

OS X installer:

20201214-215824 hosted at ImgBB

Image 20201214-215824 hosted in ImgBB

ibb.co

I have googled for hours with no luck. A thousand hugs to the person helping me to find the solution!
Thanks!

 

[Quackers]

Check that the new SSD is properly seated and make sure that the cable is not damaged or crimped.

 

[Fishrrman]

1. Boot to internet recovery
Command-OPTION-R
You'll need your wifi password.
It will take a while for the utilities to load.

2. Open disk utility.

3. VERY IMPORTANT STEP -- go to the "view" menu and choose "show all devices"

4. NOW look at the list on the left.
Can you see the "physical drive" there now...?

5. If so, ERASE the ENTIRE drive. Then quit disk utility and try to install the OS again...