XenServer 6.5 fails to install with splashy graphics error

Forget the hard time I had getting a working XenServer 6.5 installer onto a USB drive. Once we finally have the installer happily occupying the entirety of my shiny new 64GiB usb flash drive, even more trouble brews.

Tried the installer on 4 different servers, different varieties of SuperMicro hardware and each one fails with an error like this:

Installation of tmp/splashy-graphics-xenserver-0.3.9-xs1393.x86_64.rpm failed.
ln: creating hard link '/usr/share/splash/background.png' to '/usr/share/splashy/themes/citrix-theme/background.png': File exists
error:
%post(splashy-graphics-xenserver-0.3.9-xs139...

Now, I don't give two turds about what splashy graphics are, and it's unlikely I'll ever need them on this headless server, but it kinda abruptly interrupts the installer process, which I do need...

After much googling, I realize that there are literally dozens of us. We all have this splashy graphics problem, and no one concisely describes the fix. So, here it is:

While the server is installing, but before it gets to 90% or so, simply hit Alt-F2 to drop to a shell.

Then delete the background.png file at /tmp/root/usr/share/splash

# rm /tmp/root/usr/share/splash/background.png

Then hit Alt-F1 to go back to the installation terminal.

Problem solved. Now, I'm off to babysit the rest of these server installs.