This seems to be due to: # su debian-security-support --shell /bin/bash --command 'check-support-status --type ended --no-heading --status-db "/var/lib/debian-security-support/security-support.semaphore"' Unknown DEBIAN_VERSION 10. Valid values from 7 and 9
# cat /etc/debian_version 10.0 I don't know what the right fix is, but an easy local workaround for now is to: # echo buster/sid > /etc/debian_version -Corey
