Introduction: Lock Your Raspberry Pi From a Menu
Lock your PC if you need to leave your Raspberry Pi for a moment. Else evil doers may steal information while you are away.
Step 1: Configure Menu
Open terminal emulator
cd ~/.config/lxpanel/LXDE-pi/panels<br>vi panel
Type the following in the plugin menu stanza
separator {
}
item {
name=Lock...
image=gnome-lockscreen
action=/usr/bin/dm-tool lock
}
Your final panel file should look like the following:
# lxpanel config file. Manually editing is not recommended.
# Use preference dialog in lxpanel to adjust config when you can.
Global {
edge=top
allign=left
margin=0
widthtype=percent
width=100
height=36
transparent=0
tintcolor=#ffffff
alpha=0
autohide=0
heightwhenhidden=2
setdocktype=1
setpartialstrut=1
usefontcolor=0
fontsize=12
fontcolor=#b25d5d
usefontsize=1
background=0
backgroundfile=/usr/share/lxpanel/images/background.png
iconsize=36
}
Plugin {
type=space
Config {
Size=2
}
}
Plugin {
type=menu
Config {
name=Menu
image=/usr/share/raspberrypi-artwork/raspitr.png
system {
}
separator {
}
item {
name=Run...
image=gnome-run
command=run
}
separator {
}
item {
name=Shutdown...
image=gnome-logout
command=logout
}
separator {
}
item {
name=Lock...
image=gnome-lockscreen
action=/usr/bin/dm-tool lock
}
}
}
Plugin {
type=space
Config {
Size=8
}
}
Plugin {
type=launchbar
Config {
Button {
id=/usr/share/applications/epiphany-browser.desktop
}
Button {
id=/usr/share/applications/pcmanfm.desktop
}
Button {
id=/usr/share/applications/lxterminal.desktop
}
Button {
id=/usr/share/applications/wolfram-mathematica.desktop
}
Button {
id=/usr/share/applications/wolfram-language.desktop
}
}
}
Plugin {
type=space
Config {
Size=8
}
}
Plugin {
type=taskbar
expand=1
Config {
tooltips=1
IconsOnly=0
ShowAllDesks=0
UseMouseWheel=1
UseUrgencyHint=1
FlatButton=0
MaxTaskWidth=200
spacing=1
GroupedTasks=0
}
}
Plugin {
type=space
Config {
Size=2
}
}
Plugin {
type=tray
Config {
}
}
Plugin {
type=space
Config {
Size=2
}
}
Plugin {
type=cpu
Config {
ShowPercent=1
}
}
Plugin {
type=dclock
Config {
ClockFmt=%R
TooltipFmt=%A %x
BoldFont=0
IconOnly=0
CenterText=0
}
}
Plugin {
type=space
Config {
Size=2
}
}
Save the file
Compare your file with the file that I have uploaded
Step 2: Test
Reboot the Rasbpeberry Pi
Open the terminal emulator:
Restart lxpanel
lxpanelctl restart
OR if restarting the lxpanel did NOT work, reboot RPi
sudo reboot
Click on the menu
The menu item "Lock" will be shown
Click on the menu Lock
Raspberry Pi will display a login screen
Enter password
Your applications that are opened before locking event will still be available.
