Public bug reported:
package base-files 11ubuntu5.5 failed to install/upgrade: end of file on
stdin at conffile prompt
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: base-files 11ubuntu5.5
ProcVersionSignature: Ubuntu 5.13.0-30.33~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-30-generic
Just got to say, I had this problem with Lubuntu - and it seems to be
solved if you wrap the usb cable around some ferrite - there may be
interference when a usb hard drive or other high emi device is plugged
in or activated that sends the hub into a state of panic. Might be worth
a shot worke