As a resolution to the immediate lock problem, https://wiki.edubuntu.org/DebuggingInstallationIssues recommends using `fuser -v /var/cache/debconf/config.dat` to determine the process holding the lock and then killing it.
As a resolution to the immediate lock problem, https:/ /wiki.edubuntu. org/DebuggingIn stallationIssue s recommends using `fuser -v /var/cache/ debconf/ config. dat` to determine the process holding the lock and then killing it.