File securetty missing

i running ubuntu 20.04 as lxd on ubuntu 18.04 some host.
I running some application there need to have (read) /etc/securetty.
but lxd missing this file. What should i do?

Looks like Ubuntu 20.04 did away with that file.
So it’s a bug in your application to require it most likely, however you could just create a dummy file to make it happy.