The requested version of macOS is not available.
The requested version of macOS is not available. [iMac 2015]
The requested version of macOS is not available. [iMac 2015]
If you are trying for a clean install try option-cmd-R internet recovery.
If you wish to keep your current files/settings I'd suggest instead upgrading through the App Store.
If you are trying for a clean install try option-cmd-R internet recovery.
If you wish to keep your current files/settings I'd suggest instead upgrading through the App Store.
More context please?
Which version of MacOS are you trying to get and how are you trying to get it?
I'm trying to get Big Sur. Tried to install via cmd-R, but then it will install Catalina [which is already installed].
The requested version of macOS is not available.