-"Defaults to on which will cause APT to install essential and important "
-"packages as fast as possible in the install/upgrade operation. This is done "
-"to limit the effect of a failing &dpkg; call: If this option is disabled APT "
-"does treat an important package in the same way as an extra package: Between "
-"the unpacking of the important package A and his configuration can then be "
-"many other unpack or configuration calls, e.g. for package B which has no "
-"relation to A, but causes the dpkg call to fail (e.g. because maintainer "
-"script of package B generates an error) which results in a system state in "
-"which package A is unpacked but unconfigured - each package depending on A "
-"is now no longer guaranteed to work as their dependency on A is not longer "
-"satisfied. The immediate configuration marker is also applied to all "
-"dependencies which can generate a problem if the dependencies e.g. form a "
-"circle as a dependency with the immediate flag is comparable with a "
-"Pre-Dependency. So in theory it is possible that APT encounters a situation "
-"in which it is unable to perform immediate configuration, errors out and "
-"refers to this option so the user can deactivate the immediate configuration "
-"temporarily to be able to perform an install/upgrade again. Note the use of "
-"the word \"theory\" here as this problem was only encountered by now in real "
-"world a few times in non-stable distribution versions and was caused by "
-"wrong dependencies of the package in question or by a system in an already "
-"broken state, so you should not blindly disable this option as the mentioned "
-"scenario above is not the only problem immediate configuration can help to "
-"prevent in the first place. Before a big operation like "
-"<literal>dist-upgrade</literal> is run with this option disabled it should "
-"be tried to explicitly <literal>install</literal> the package APT is unable "
-"to configure immediately, but please make sure to report your problem also "
-"to your distribution and to the APT team with the buglink below so they can "
-"work on improving or correcting the upgrade process."