bootloader howto
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Thomas Klaehn
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@ -20,8 +20,11 @@ citecolor = black]{hyperref}%
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\usepackage{amsfonts}%
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\usepackage{mathrsfs}%
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\usepackage{hyperref}%
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\usepackage{xcolor}%
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\usepackage[dvipsnames]{xcolor}%
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\usepackage{scrpage2}%
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\usepackage{multido}
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\usepackage{pstricks}
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\usepackage{colortbl}
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\newcommand*\euler{\mathrm{e}}
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\input{title.tex}
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291
content.tex
291
content.tex
@ -1,241 +1,102 @@
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\section{Installation}
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\subsection{SD card preparation}
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\subsubsection{Partitions}
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Format the SD card with two new partitions:
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\lstsetbash
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\begin{lstlisting}
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fdisk /dev/mmcblk0
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\end{lstlisting}
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\section{Bootloader}
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\begin{enumerate}
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\item Type \textbf{o} to erase all former partitions
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\item Type \textbf{p} to list all existing partitions
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\item Type \textbf{n}, then \textbf{p} to create the boot partition. Press
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\textbf{RETURN} to accept the first sector, then \textbf{+100M} for the
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last sector
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\item Type \textbf{t}, then \textbf{c} to set the partition type to FAT32
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\item Type \textbf{n}, then \textbf{p} to create the root partition. Press
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\textbf{RETURN} to accept the first sector, then \textbf{RETURN} for the
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last sector
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\item Type \textbf{w} to write the new partition table
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\item check/edit build job file
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\item check/edit configuration file
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\item create release tag in gitlab
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\end{enumerate}
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\subsubsection{File systems}
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Create the file systems for the new partitions:
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\begin{lstlisting}
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mkfs.vfat /dev/mmcblk0p1
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mkfs.ext4 /dev/mmcblk0p2
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\end{lstlisting}
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Create mount points and mount the new partitions:
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\begin{lstlisting}
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mkdir boot
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mkdir root
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mount /dev/mmcblk0p1 boot
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mount /dev/mmcblk0p2 root
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\end{lstlisting}
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\subsection{Build job file}
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The build job file (\texttt{.gitlab-ci.yml}) could be found in the root
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directory of the repository. Here only the build configuration is done. In the
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\texttt{variables} Section the variable \texttt{PROJECT} contains the current
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build configuration.\\
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Possible build configurations:
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\subsubsection{Download and extract root file system}
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\begin{lstlisting}
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wget http://archlinuxarm.org/os/\
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ArchLinuxARM-rpi-2-latest.tar.gz
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bsdtar -xpf ArchLinuxARM-rpi-2-latest.tar.gz -C root
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sync
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mv root/boot/* boot
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\end{lstlisting}
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Enable ssh root login:
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\begin{lstlisting}
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vim root/etc/ssh/sshd\_config
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\end{lstlisting}
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Find \texttt{\#PermitRootLogin yes} and uncommend it
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\begin{lstlisting}
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PermitRootLogin yes
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\end{lstlisting}
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Unmount both partitions
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\begin{lstlisting}
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umount boot root
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\end{lstlisting}
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\section{Configuration}
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\subsection{User management}
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\subsubsection{Create new user}
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\begin{lstlisting}
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useradd -m -g users -G wheel -s /bin/bash tkl
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\end{lstlisting}
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\captionof{table}{Values for build configutation}
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\label{tab:var_build_confs}
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\begin{tabular}{l l}
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\texttt{-m} & create user name home directory\\
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\texttt{-g} & initial login group\\
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\texttt{-G} & list of supplementary groups - comma separated\\
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\texttt{-s} & path and file name of default login shell\\
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\end{tabular}\\
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Set password for the new user:
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\cellcolor{black}\color{white}build config & \cellcolor{black}\color{white}meaning \\
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white2-dbg & use the debug configuration to build the release\\
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white2-rel & use the release configuration to build the release\\\\
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\end{tabular}
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\textbf{Example}
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\lstsetbash
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\begin{lstlisting}
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passwd tkl
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variables:
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PROJECT: \"white2-dbg\"
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...
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\end{lstlisting}
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Enable wheel group members as sudoers:
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\begin{lstlisting}
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EDITOR=vim visudo
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\end{lstlisting}
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Uncomment:
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\begin{lstlisting}
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%wheel ALL=(ALL) ALL
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variables:
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PROJECT: \"white2-rel\"
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...
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\end{lstlisting}
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\subsection{Aliasing}
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\subsection{Configuration file}
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The configuration file (\texttt{configuration.xml}) depends on the build
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configuration and could be found in following folder (relative to the
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repositories root folder):\\
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\begin{lstlisting}
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cd ~
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vi .bashrc
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moray/config/<build\_config>/
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\end{lstlisting}
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Add:\\
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\texttt{alias vi='vim'}
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Amongst others informations regarding version numbers, deploy file names and
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deploy locations are encapsulated in the \texttt{postlink} target.
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\subsection{Customize vim}
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Edit \texttt{.vimrc}:
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\captionof{table}{Release relevant attributes in configuration file}
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\label{tab:conf_vars}
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\begin{tabular}{l l}
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\cellcolor{black}\color{white}attributes & \cellcolor{black}\color{white}meaning \\
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OUT\_EXECUTABLE\_NAME & file name for the bootloader executable\\
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REL\_VERSION & version numbering scheme\\
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OUT\_DEPLOY\_PATH & subversion link to deploy the release to\\\\
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\end{tabular}
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It's usually enough to change \texttt{OUT\_EXECUTABLE\_NAME} and
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\texttt{REL\_VERSION} according to the release numbering scheme.\\\\
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\textbf{Example}
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\begin{lstlisting}
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syntax on "Syntax highlightning
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set number "Line numbering
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...
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<attribute name="OUT_EXECUTABLE_NAME"
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value="MO_BL_42_3.0.6_dbg.S19"/>
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<attribute name="REL_VERSION"
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value="42.3.0.6"/>
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<attribute name="OUT_DEPLOY_PATH"
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value="http://dabsvn01.internal.novero.com/svn/\
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0_31X_P0521_moray_white2/trunk/development/\
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software/releases/WTC/"/>
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...
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\end{lstlisting}
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\subsection{Create release tag in gitlab}
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To create a release candidate a tag in gitlab has to be created. Of course this
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could be done either locally (don't forget to push the tag) or by using the
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gitlab ui.
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\subsubsection{Release candidate}
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To create a release candidate the tag name must match the following regular
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expression:
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\begin{lstlisting}
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^release/white2/MO_BL_42_[0-9]+\.[0-9]+\.[0-9]+_RC[0-9]+
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\end{lstlisting}
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\subsection{Wifi}
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Configure wifi network:
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\textbf{Example}
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\begin{lstlisting}
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wifi-menu
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\end{lstlisting}
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Enable wifi network permanent:
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\begin{lstlisting}
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netctl enable wlan0-<network_name>
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\end{lstlisting}
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\subsubsection{Deactivate wifi device sleep mode}
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\begin{lstlisting}
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pacman -S iw
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echo ACTION=="add", SUBSYSTEM=="net", KERNEL=="wlan*", \
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RUN+="/usr/bin/iw dev \%k set power\_save off\" \
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> etc/udev/rules.d/70-wifi-powersave.rules
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release/white2/MO_BL_42_0.0.0_RC0
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release/white2/MO_BL_42_255.255.255_RC255
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\end{lstlisting}
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\subsection{Ssh key login}
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\begin{itemize}
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\item Create \texttt{.ssh/} folder in users home directory
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\item Copy public key file (i.e. \texttt{id\_rsa.pub}) into \texttt{.ssh}
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folder
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\item Authorize public key:
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\subsubsection{Release}
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To create a release the tag name must match the following regular expression:
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\begin{lstlisting}
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cat id_rsa.pub >> authorized_keys
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\end{lstlisting}
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\end{itemize}
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\subsection{Interfaces}
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\subsubsection{I2C}
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To enable i2c interface edit \texttt{/boot/config.txt}. \\
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Uncomment \texttt{\#device\_tree\_param=i2c\_arm=on}\\
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Load i2c modules while boot:
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\begin{lstlisting}
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/etc/modules-load.d/raspberry.conf
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i2c-dev
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i2c-bcm2708
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\end{lstlisting}
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Install package \texttt{i2c-tools}
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Test i2c bus after reboot:
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\begin{lstlisting}
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i2cdetect -y 1
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\end{lstlisting}
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Set permissions for i2c device access:
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\begin{lstlisting}
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/etc/udev/rules.d/99-i2c.rules
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KERNEL=="i2c-1", MODE="0777"
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^release/white2/MO_BL_42_[0-9]+\.[0-9]+\.[0-9]+
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\end{lstlisting}
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\subsubsection{SPI}
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To enable spi interface edit \texttt{/boot/config.txt}. \\
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Uncomment \texttt{\#device\_tree\_param=spi=on}
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\subsubsection{GPIO}
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Create an udev rule to enable others than root accessing the gpio files:
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\textbf{Example}
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\begin{lstlisting}
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/etc/udev/rules.d/98-gpio.rules
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SUBSYSTEM=="gpio*", PROGRAM="/bin/sh -c 'chown -R root:gpio\
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/sys/class/gpio; chmod -R 0777 /sys/class/gpio; chown -R \
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root:gpio /sys/devices/virtual/gpio; chmod -R 0777 \
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/sys/devices/virtual/gpio'"
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release/white2/MO_BL_42_0.0.0
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release/white2/MO_BL_42_255.255.255
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\end{lstlisting}
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\subsection{tools}
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\begin{itemize}
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\item \texttt{fakeroot}
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\item \texttt{gcc}
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\item \texttt{git}
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\item \texttt{make}
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\item \texttt{patch}
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\item \texttt{python2, python2-pip}
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\item \texttt{wget}
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\end{itemize}
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\subsection{Hostname}
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\begin{lstlisting}
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echo "hostname" > /etc/hostname
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\end{lstlisting}
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\textbf{Note:} Any tag which shouldn't trigger a release build must not match
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these regular expression rules.
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\section{Applications}
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\subsection{I2C-OLED}
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\subsubsection{Oled Test application}
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Clone test application:
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\begin{lstlisting}
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git clone git@dabgit01.internal.novero.com:raspberry/\
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oledpi.git
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\end{lstlisting}
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\subsubsection{Install driver}
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Clone oled driver:
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\begin{lstlisting}
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git clone https://github.com/rm-hull/ssd1306.git
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\end{lstlisting}
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Install it:
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\begin{lstlisting}
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python2 setup.py install
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\end{lstlisting}
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\subsubsection{Dependencies}
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\begin{itemize}
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\item \texttt{python-smbus/python2-smbus} (AUR)
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\item \texttt{i2c-tool-git} (AUR)
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\item \texttt{libjpeg-turbo}
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\item \texttt{pillow} install using pip \texttt{(pip/pip2 install pillow)}
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\end{itemize}
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\subsection{Weatherpi}
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\subsubsection{Usb weatherstation test application}
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Clone test application:
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\begin{lstlisting}
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git clone git@dabgit01.internal.novero.com:raspberry/\
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weatherpi.git
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\end{lstlisting}
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\subsubsection{Dependencies}
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\begin{itemize}
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\item \texttt{python2-pyusb} (AUR) (edit \texttt{PKGBUILD} and add
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\texttt{'armv7h'} to \texttt{arch})
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\item \texttt{libusb-compat}
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\end{itemize}
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\subsection{MQTT Broker}
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Install mosquitto (AUR)\\
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Install paho-mqtt client library:\\
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\begin{lstlisting}
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pip2 install paho-mqtt
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\end{lstlisting}
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Create config file:
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\begin{lstlisting}
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cp /etc/mosquitto.conf.example /etc/mosquitto.conf
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\end{lstlisting}
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Start mosquitto broker service:
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\begin{lstlisting}
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systemctl enable mosquitto.service
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systemctl start mosquitto.service
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\end{lstlisting}
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\subsubsection{Test}
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Subscribe to a topic:
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\begin{lstlisting}
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mosquitto_sub -t "topic/path"
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\end{lstlisting}
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Populate a message:
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\begin{lstlisting}
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mosquitto_pub -t "topic/path" -m "message payload"
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\end{lstlisting}
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