Comment 23 for bug 1521132

This has also happened for me, unfortunately using the final 16.04 desktop release. Also, it didn't only fail to install the OS, but also broke my previously working dual-boot (windows/ubuntu gnome) grub install, leaving me with a grub rescue prompt on boot.

I also tried installing Ubuntu Gnome Xenial (same error), and disabling software package downloads during install (to avoid running into a mirroring/inconsistent packages glitch) - I keep getting this message.

I also noticed two things about the installer though (in German):

On the first screen, the installer prompts you to install "$(RELEASE)" (sic), there seems a string replacement to be missing there. Also, when asked for the desired computer hostname, it says "-ToBeFilledByOEM" - to me this seems to be really obvious stuff that shouldn't have made it into a final LTS release distro?