Cron is a job scheduler on UNIX-like systems. We are going to use the super user crontab to launch ofxPiMapper on boot. Use the following command to edit the crontab.
```bash
sudo nano /etc/inittab
sudo crontab -e
```
Replace the line `1:2345:respawn:/sbin/getty 115200 tty1` with the one below.
If using it for the first time, you will be prompted to choose the text editor you want to use. Select "nano". Proceed. Add the following line in the file.
```bash
1:2345:respawn:/bin/login -f pi tty1 /dev/tty1 2>&1
```
### 1.3. Create a startup script
Execute the following commands one by one.
```bash
cd /home/pi
touch startup.sh
chmod a+x startup.sh
```
Open `startup.sh` in a text editor.
```bash
nano startup.sh
```
Copy and paste the following lines there.
```bash
#!/bin/bash
echo "Checking SSH connection...";
if [ -z "$SSH_CONNECTION" ]; then
echo "No SSH connection, launching scripts.";
# Launch the ofxPiMapper example compiled binary fullscreen
Restart your Pi and your application should be launched automatically.
Hit `ctrl` + `x` to exit. Hit `y` to confirm changes of the file and `enter` to confirm the existing name of the file.
### 1.5. Preventing the screen from going blank
It might happen that the screen goes blank as the system tries to save energy as there is no mouse or keyboard connected. To avoid this from happening, open `rc.local` in a text editor.
```bash
sudo nano /etc/rc.local
```
Add the following just **BEFORE** the `exit 0` line.
```bash
sh -c 'setterm -blank 0 -powersave off -powerdown 0 < /dev/console > /dev/console 2>&1'
```
Congratulations! OfxPiMapper should start up after next system reboot.
Krisjanis Rijnieks
9 years ago