Bug#1035089: bookworm: gpgv must be installed for successful upgrades

[Jonathan Wiltshire <jmw@debian.org>]

Package: release-notes
Severity: normal
Tags: patch
X-Debbugs-Cc: jmw@debian.org

Hi,

Attached patch adds a section in the upgrade guide to ensure gpgv is
installed. Most users will have this if they have followed previous
upgrade guidance not to skip releases. However, without it they will not
be able to upgrade at all because the release signing key is not
validated correctly.

diff --git a/en/upgrading.dbk b/en/upgrading.dbk
index 8f176d80..cdd14a45 100644
--- a/en/upgrading.dbk
+++ b/en/upgrading.dbk
@@ -451,6 +451,16 @@ $ apt-forktracer | sort
     </para>
   </section>
 
+  <section id="install-gpgv">
+    <title>Check gpgv is installed</title>
+    <para>
+      APT needs <command>gpgv</command> version 2 or greater to verify the keys used
+      to sign releases of &newreleasename;. Ensure it is installed with:
+    </para>
+    <screen>
+$ apt install gpgv
+    </screen>
+  </section>
   <section id="package-status">
     <title>Check package status</title>
     <para>