Comment 6 for bug 1829625

I suspect the partyline is that cloudimage shall support serial console come hell or high water. If that's the case, as an alternative to modifying cloudimage to suite vagrant, it might make sense to petition vagrant to provide a sensible default for the serial console to suit cloudimage.

I ran into this with vagrant 2.2.9 and Ubuntu focal64.

If the cloudimage team can enlighten us about the rationale for requesting ttyS0 I'll be happy to do the legwork with vagrant.