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--- docs:tips_n_tricks:debian:index.html [30.09.2019 20:57 CEST] – [Packages missing after a fresh installation] Moved "patch" to general use, as it helps to merge config updates. peter
+++ docs:tips_n_tricks:debian:index.html [16.02.2020 21:49 CET] – [Change timezone] peter
@@ Line 31: / Line 31: @@
   APT::Default-Release "squeeze";
+==== Apt Pinning by Repository (/etc/apt/preferences) ====
+// Tested with Debian 10 Buster //
+<code text /etc/apt/preferences.d/99ul-pin-priorities>
+# /usr/local Pin Priorities
+# Need to be in sync with /etc/apt/sources.list !
+# Check with apt-cache policy
+Package: *
+Pin: origin deb.debian.org
+Pin-Priority: 500
+Package: *
+Pin: origin security.debian.org
+Pin-Priority: 500
+# Package: *
+# Pin: origin repo.dovecot.org
+# Pin-Priority: 1
+Package: *
+Pin: origin *
+Pin-Priority: 1
+</code>
+See:
+  * https://wiki.debian.org/AptConfiguration#apt_preferences_.28APT_pinning.29
 ===== Change timezone =====
 To change the timezone of a running systems, issue
@@ Line 36: / Line 62: @@
   tzconfig
-or
+or((for newer versions of Debian))
   dpkg-reconfigure tzdata
 depending on your version of Debian.
+For unattended installations, the following **may** work:
+  debconf-set-selections tzdata.debconf
+<code text tzdata.debconf>
+tzdata tzdata/Areas select Europe
+# tzdata tzdata/Areas seen false
+tzdata tzdata/Zones/Europe select Berlin
+# tzdata tzdata/Zones/Europe seen false
+</code>
 ===== NFS Workaround =====