Internet Recovery is not offering Mojave

Got in touch with a super smart and helpful support rep in Apple Enterprise Support yesterday who suggested this workaround, after much gnashing of teeth:

Requirements

• New Mac
• Bootable USB drive containing the latest version of the Mojave installer (8GB or large

Create the bootable USB drive

1. Download the latest version of the macOS Mojave from the App Store
2. Wipe your USB drive in Disk Utility and format as Mac OS Extended (Journaled)
3. Launch Terminal
4. Run the following command

   sudo /Path/to/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/FreshlyFormattedUSBDrive

5. Type Y to start the process. Note: This can take up to 50 minutes to complete depending on the drive.
6. Once completed, you may have to force eject the drive.

Setting up the new Mac

1. Connect your USB drive to the new Mac via HooToo or other means.
2. Boot into Recovery mode by holding down CMD-R from a fresh start
3. Erase/format the drive as APFS
4. Launch Terminal from the Utilities menu
5. Run the following commands

   cd /Volumes/Install\ macOS\ Mojave/Install\ macOS\ Mojave.app/Contents/Resources/

   ./startosinstall --volume /Volumes/Macintosh\ HD/ --agreetolicense --nointeraction

   
   

6. The process will start and you'll see something like the following:
   https://i.imgur.com/2gq3f1p.jpg
7. After it reaches 100%, the Mac will reboot and install Mojave. Your next interaction will be at the regular first start screens.

I am thinking that you might first have Mojave installed, via the Mojave download page. I would suggest you download it and make an installer on a thumb drive.

I had to do a recovery yesterday on my iMac and used the Internet Recovery and it downloaded Mojave since I was using Mojave.

Had a similar problem, I did the Mojave upgrade from High Sierra, had numerous problems and decided to do a HD erase and re-install. For reason(s) unknown, it wanted to reinstall High Sierra. I spoke with 3 different Apple Support Tech's who couldn't understand why it was happening. Then, late last night, while making my umpteenth try, Mojave appeared and installed. I used CMD-OPT-R. Makes no sense to me, but Mojave is working great. I will say it took 5 attempts to complete the Mojave install due to the network being busy.

That *****. Does anyone have any insight on why Mojave isn't available? Or how to get it from IR if you haven't installed it on a fresh device yet? This two+ hour workflow to get new laptops on Mojave is a pain in the ***.

How are you invoking IR?

Are you restarting using Command+Option+R or Shift+Command+Option+R?