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Improve Stretch install script on Ubuntu 20.04 #110

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Improve Stretch install script on Ubuntu 20.04 #110

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d9dc137
make apt upgrade fully non-interactive and preserve existing configs
hello-jkoubi Apr 11, 2026
1e222e2
Fix RealSense D435i installation by updating keys and repo setup
hello-jkoubi Apr 11, 2026
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11 changes: 8 additions & 3 deletions factory/20.04/stretch_install_system.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ echo "###########################################"
echo "Apt update & upgrade (this might take a while)"
sudo apt-add-repository universe >> $REDIRECT_LOGFILE
sudo apt-get --yes update >> $REDIRECT_LOGFILE
sudo apt-get --yes upgrade &>> $REDIRECT_LOGFILE
sudo DEBIAN_FRONTEND=noninteractive apt-get --yes -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold" upgrade &>> $REDIRECT_LOGFILE
echo "Install zip & unzip"
install zip unzip
echo "Install Curl"
Expand Down Expand Up @@ -124,11 +124,16 @@ echo "Install dynamic reconfiguration"
install ros-noetic-ddynamic-reconfigure ros-noetic-ddynamic-reconfigure-python
echo "Register the librealsense APT server's public key"
function register_librealsense_apt_server {
sudo apt-key adv --keyserver keys.gnupg.net --recv-key F6E65AC044F831AC80A06380C8B3A55A6F3EFCDE || sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-key F6E65AC044F831AC80A06380C8B3A55A6F3EFCDE
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-key F6E65AC044F831AC80A06380C8B3A55A6F3EFCDE
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-key FB0B24895113F120
}
register_librealsense_apt_server &>> $REDIRECT_LOGFILE

echo "Add the librealsense APT server to the list of APT repositories"
sudo add-apt-repository "deb https://librealsense.intel.com/Debian/apt-repo bionic main" -u &>> $REDIRECT_LOGFILE
function add_librealsense_apt_server {
echo "deb https://librealsense.intel.com/Debian/apt-repo bionic main" | sudo tee /etc/apt/sources.list.d/librealsense.list
}
add_librealsense_apt_server &>> $REDIRECT_LOGFILE
echo "Remove old records in case of upgrading"
sudo rm -f /etc/apt/sources.list.d/realsense-public.list
echo "Apt update"
Expand Down