output about the decisions dist-upgrade makes. bf(Debug::NoLocking)
disables file locking so apt can do some operations as non-root and
bf(Debug::pkgDPkgPM) will print out the command line for each dpkg
-invokation.
+invokation. bf(Debug::IdentCdrom) will disable the inclusion of statfs
+data in CDROM IDs.
manpagesection(EXAMPLES)
bf(/usr/doc/apt/examples/apt.conf) contains a sample configuration file