No disk to reinstall Yosemite

[SpaghettiJoe]

I was trying to wipe my MacBook Air and reinstall Yosemite.

When I tried to reinstall, there was no disk listed for me to choose.

Please help....

 

[christiann]

I was trying to wipe my MacBook Air and reinstall Yosemite.

When I tried to reinstall, there was no disk listed for me to choose.

Please help....

if you see booting off a USB or internet recovery, go to Disk Utility in macOS Recovery. Click on your a drive name (something like APPLE SSD MEDIA) and click Erase. Name can be whatever you want and for format click AFPS (MacOS Extended if you are on an old version), then click erase.
then exit disk utility and install macOS as usual.