add references

1 files changed, 4 insertions, 35 deletions

diff --git a/presentations/bank/bank.tex b/presentations/bank/bank.tex
index f8c47ff..e8cf667 100644
--- a/presentations/bank/bank.tex
+++ b/presentations/bank/bank.tex
@@ -731,52 +731,21 @@ Once everyone is happy with Beta, move to production.
 \end{frame}
 
 
-\begin{frame}[fragile]{Debian Installation Overview (1/3)}
-Recommended {\tt /etc/apt/preferences}:
-
-{\tiny
-\begin{verbatim}
-Package: *
-Pin: release a=stable
-Pin-Priority: 700
-
-Package: *
-Pin: release a=testing
-Pin-Priority: 650
-
-Package: *
-Pin: release a=unstable
-Pin-Priority: 600
-
-Package: *
-Pin: release l=Debian-Security
-Pin-Priority: 1000
-\end{verbatim}
-}
-\end{frame}
-
-\begin{frame}[fragile]{Debian Installation Overview (2/3)}
+\begin{frame}[fragile]{Ubuntu 20.04 LTS Installation Overview}
 \noindent
-Recommended {\tt /etc/apt/sources.list}:
+Extend your {\tt /etc/apt/sources.list} with:
 
 {\tiny
 \begin{verbatim}
-deb http://ftp.ch.debian.org/debian/ buster main
-deb http://security.debian.org/debian-security buster/updates main
-deb http://ftp.ch.debian.org/debian/ testing main
-deb http://ftp.ch.debian.org/debian/ unstable main
-deb https://deb.taler.net/apt/debian sid main
+deb https://deb.taler.net/apt/ubuntu focal-fossa main
 \end{verbatim}
 }
-\end{frame}
-
-\begin{frame}[fragile]{Debian Installation Overview (3/3)}
 \noindent
 Key import and installation:
 
 {\tiny
 \begin{verbatim}
-# wget -O - https://taler.net/static/taler-systems.gpg.key | apt-key add -
+# wget -O - https://taler.net/static/taler-systems.gpg.key | apt-sign add -
 # apt update
 # apt install taler-exchange
 \end{verbatim}