Difference between revisions of "Ubuntu 20 04 modifications"

From RobotinoWiki
(→‎gcc)
(→‎automirror)
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EOF
 
EOF
 
chmod +x /root/cleandist.sh
 
chmod +x /root/cleandist.sh
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</pre>
 
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==automirror==
 
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<pre>
 
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#!/bin/bash
 
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set -e -E -u
 
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XRANDR_STATUS_PROGRAM=${XRANDR_STATUS_PROGRAM:-xrandr}
 
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XRANDR_SET_PROGRAM=${XRANDR_SET_PROGRAM:-xrandr}
 
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PRIMARY_DISPLAY=${AUTOMIRROR_PRIMARY_DISPLAY:-LVDS1}
 
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NOTIFY_SEND=( ${AUTOMIRROR_NOTIFY_COMMAND:-notify-send -a automirror -i automirror "Automatic Mirror Configuration"} )
 
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# force called programs to english output
 
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LANG=C LC_ALL=C
 
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function die {
 
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    echo 1>&2 "$*"
 
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    exit 10
 
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}
 
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function get_display_resolution {
 
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    local find_display="$1" ; shift
 
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    local display_list="$1"
 
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    while read display width_mm height_mm width height ; do
 
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        if [[ "$display" == "$find_display" ]] ; then
 
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            echo ${width}x${height}
 
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            return 0
 
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        fi
 
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    done <<<"$display_list"
 
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    die "Could not determine resolution for '$find_display'. Display Data:
 
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$display_list"
 
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}
 
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function get_highest_display {
 
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    local display_list="$1" ; shift
 
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    local data=( $(sort -r -n -k 5 <<<"$display_list") )
 
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    echo $data
 
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}
 
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xrandr_current="$($XRANDR_STATUS_PROGRAM)"
 
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# find connected displays by filtering those that are connected and have a size set in millimeters (mm)
 
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connected_displays=( $(sed -n -e 's/^\(.*\) connected.*mm$/\1/p' <<<"$xrandr_current") )
 
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# See http://stackoverflow.com/a/1252191/2042547 for how to use sed to replace newlines
 
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# display_list is a list of displays with their maximum/optimum pixel and physical dimensions
 
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# thanks to the first sed I know that here is only a SINGLE space
 
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display_list="$(sed ':a;N;$!ba;s/\n  / /g'<<<"$xrandr_current" | sed -n -e 's/^\([a-zA-Z0-9_-]\+\) connected.* \([0-9]\+\)mm.* \([0-9]\+\)mm \([0-9]\+\)x\([0-9]\+\).*$/\1 \2 \3 \4 \5/p' )"
 
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: connected_displays: ${connected_displays[@]}
 
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: display_list: "$display_list"
 
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if [[ -z "$display_list" ]] ; then
 
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    die "Could not find any displays connected. XRANDR output: $xrandr_current"
 
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fi
 
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# if the primary display is NOT connected then use the highest display as primary
 
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if [[ "${connected_displays[*]}" != *$PRIMARY_DISPLAY* ]] ; then
 
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    PRIMARY_DISPLAY=$(get_highest_display "$display_list")
 
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fi
 
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frame_buffer_resolution=$(get_display_resolution $PRIMARY_DISPLAY "$display_list")
 
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: $frame_buffer_resolution
 
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xrandr_set_args=( --fb $frame_buffer_resolution )
 
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notify_string=""
 
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if (( ${#connected_displays[@]} == 1 )) ; then
 
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    xrandr_set_args+=( --output $connected_displays --mode $frame_buffer_resolution --scale 1x1 )
 
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    notify_string="$connected_displays reset to $frame_buffer_resolution"
 
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else
 
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    other_display_list="$(grep -v ^$PRIMARY_DISPLAY <<<"$display_list")"
 
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    $XRANDR_SET_PROGRAM $(while read display junk ; do echo " --output $display --scale 1x1 --off" ; done <<<"$other_display_list")
 
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    xrandr_set_args+=( --output $PRIMARY_DISPLAY --mode $frame_buffer_resolution --scale 1x1 )
 
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    notify_string="$PRIMARY_DISPLAY is primary at $frame_buffer_resolution"
 
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    while read display junk ; do
 
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        mode="$(get_display_resolution $display "$other_display_list")"
 
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        xrandr_set_args+=( --output $display --same-as $PRIMARY_DISPLAY --mode "$mode" --scale-from $frame_buffer_resolution  )
 
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        notify_string="$notify_string\n$display is scaled mirror at $mode"
 
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    done <<<"$other_display_list"
 
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fi
 
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#logger -s -t "$0" -- Running $XRANDR_SET_PROGRAM "${xrandr_set_args[@]}"
 
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$XRANDR_SET_PROGRAM "${xrandr_set_args[@]}"
 
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ret=$?
 
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"${NOTIFY_SEND[@]}" "$notify_string"
 
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exit $ret
 
 
</pre>
 
</pre>
  

Revision as of 15:33, 15 September 2020

Minimum Ubuntu Desktop install 

sudo su

passwd
dorp6

apt install openssh-server vim net-tools

vim /etc/ssh/sshd_config
PermitRootLogin yes
systemctl restart ssh

vim /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="net.ifnames=0 biosdevname=0 i8042.noaux=1"
GRUB_CMDLINE_LINUX_DEFAULT="noresume"
update-grub

cat << EOF > /root/remove_old_kernels.sh
#!/bin/bash
dpkg -l 'linux-[ihs]*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\([-0-9]*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | tee zu_entfernende_Kernel
cat zu_entfernende_Kernel | xargs sudo apt-get -y purge
rm zu_entfernende_Kernel
EOF
chmod +x /root/remove_old_kernels.sh

e2fsck -f /dev/sda1
tune2fs -U f6fec0c6-bc88-46d3-b125-e450709f1956 /dev/sda1

replace UUID by f6fec0c6-bc88-46d3-b125-e450709f1956 in /boot/grub/grub.cfg

echo "RESUME=none" > /etc/initramfs-tools/conf.d/resume

wget -qO - http://packages.openrobotino.org/keyFile | sudo apt-key add -
echo "deb http://packages2.openrobotino.org focal main" > /etc/apt/sources.list.d/openrobotino.list

apt install vino

**** run this as user robotino !!!
gsettings set org.gnome.Vino require-encryption false

apt install qdirstat gdebi

add-apt-repository ppa:open62541-team/ppa
apt install libopen62541-1-dev

sed -i -e 's/enabled=1/enabled=0/g' /etc/default/apport

apt-get remove unattended-upgrades
apt-get remove update-notifier

cleandist

cat << EOF > /root/cleandist.sh
#!/bin/bash

sed -i "/^lasertype=/c\lasertype=realsense" /etc/robotino/smartsoft_slave.conf
sed -i "/^RobotinoIP=/c\RobotinoIP=192.168.0.1" /etc/robotino/smartsoft_slave.conf

rm -Rf /var/log/*
apt-get clean

rm -Rf /home/robotino/.cache
rm /root/*.deb

history -c
rm /home/robotino/.bash_history

rm /root/.ssh/authorized_keys

rm -Rf /opt/smartsoft/data_master/maps
rm -Rf /opt/smartsoft/data/maps

rm -f /etc/NetworkManager/system-connections/*

cat << EOF2 > /etc/NetworkManager/system-connections/eth0
[connection]
id=eth0
uuid=03d1fb6f-efcf-3f57-85e1-85b9cdb9ab9d
type=ethernet
autoconnect-priority=-999
interface-name=eth0
permissions=
secondaries=
timestamp=1547803650

[ethernet]
duplex=full
mac-address=
mac-address-blacklist=

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
ip6-privacy=0
method=auto

[ipv4]
method=auto
address1=
dns=
address2=192.168.0.1/24,0.0.0.0
dns-search=
EOF2
EOF
chmod +x /root/cleandist.sh

gcc

Wenn kein gcc installiert ist 

apt install gcc-7 g++-7

Wenn gcc-9 installiert ist: 

update-alternatives --remove-all gcc 
update-alternatives --remove-all g++

apt install gcc-7 g++-7 gcc-9 g++-9

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 10
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 20

sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 10
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-9 20

sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 30
sudo update-alternatives --set cc /usr/bin/gcc

sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++ 30
sudo update-alternatives --set c++ /usr/bin/g++

update-alternatives --config gcc
update-alternatives --config g++

Realsense

sudo apt-key adv --keyserver keys.gnupg.net --recv-key C8B3A55A6F3EFCDE || sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-key C8B3A55A6F3EFCDE
sudo add-apt-repository "deb http://realsense-hw-public.s3.amazonaws.com/Debian/apt-repo bionic main" -u

apt install librealsense2==2.38.1-0~realsense0.3378
apt-mark hold librealsense2

optinal

sudo apt-get install librealsense2-dbg
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