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Overwrite existing user settings with new defaults when a new version of theĪpplication is first started by a user. Of the Mozilla suite, and the GNOME and KDE desktop environments) are known to The upgrade process itself does not modify anything in the Will also want to back up /var/lib/aptitude/pkgstates. If you use aptitude to manage packages on your system, you $ dpkg -get-selections '*' # (the quotes are important) var/lib/apt/extended_states and the output of: The main things you'll want to back up are the contents of

Hardware failure in the middle of an upgrade could result in a severely damaged The upgrade tools and process are quite reliable, but a Transitional dummy packagesĤ.1.1. Back up any data or configuration informationīefore upgrading your system, it is strongly recommended that you make a fullīackup, or at least back up any data or configuration information you can'tĪfford to lose. Upgrading your kernel and related packages 4.6.1. Full-upgrade fails with “ Could not perform immediate configuration” 4.5.2. Make sure you have sufficient space for the upgrade 4.4.4. Adding APT sources from optical media 4.4. Adding APT sources for a local mirror 4.3.3. The non-free and non-free-firmware components 4.2.9. Clean up leftover configuration files 4.2.8. Prepare a safe environment for the upgrade 4.2. Back up any data or configuration information 4.1.2.