I can't seem to stop aptitude from upgrading all my packages to testing or beyond.
I'm running Debian lenny, and generally I want to stick with packages from lenny unless I explicitly say otherwise. For particular features I may upgrade a particular package to a version from testing or experimental, but in general I want to stick to the lenny versions. In my
/etc/apt/apt.conf I have uttered
/etc/apt/preferences is listed below.
Problem: whenever I hit the U key in aptitude, it wants to upgrade all my packages at least to testing.
Question: how can I arrange that the U key in aptitude installs only new versions in lenny, not newer versions from testing or elsewhere?
/etc/apt/preferences (where I freely admit I don't know what I'm doing) is
Package: * Pin: release a=stable Pin-Priority: 900 Package: * Pin: release a=testing Pin-Priority: 90 Package: * Pin: release a=experimental Pin-Priority: 89 Package: * Pin: release a=gutsy Pin-Priority: 88 Package: * Pin: release a=unstable Pin-Priority: 50