Auto-Start Program at Login in Angstrom on Beagleboard

Angstrom start-up processes [beaglebone]

Create a new file in /lib/systemd/system/ (rfidreader.service in my example) with content like:

[Unit]
Description=Start Python RFID reader

[Service]
WorkingDirectory=/...Python script path.../
ExecStart=/usr/bin/python rfidreader.py
KillMode=process

[Install]
WantedBy=multi-user.target

Then execute the following command to install the service:

systemctl enable rfidreader.service

To start the service, you can either reboot or execute:

systemctl start rfidreader.service

To check if the service is running and get the latest outputs from the script:

systemctl status rfidreader.service

Auto login on BeagleBone White + Angstrom 3.2

Turned out that a RF module attached to my beaglebone was being powered via USB, and this module should be activated by my test program mentioned in the question. So, when I unplugged my BBone USB cable, I was actually separating its GND from the RF Module's ground.

In short, I just had to use the same source in the entire circuit and keep the autologin configuration explained in the topic I also mentioned in my question.

Angstrom Linux on Beagleboard boots into sleep mode

This seems to have fixed the issue I was having, firstly I'd suggest updating any outdated packages by opening a terminal and typing

opkg update

this should only take ~1 minute, aftewards type

opkg upgrade

This can take anywhere from ~10minutes to ~6 hours maybe even more, so be patient, just leave the device alone until it has finished.

then open the following file

nano /etc/X11/xorg.conf

and add the following

Section "ServerFlags"
   Option   "BlankTime"     "0"
   Option   "StandbyTime"   "0"
   Option   "SuspendTime"   "0"
   Option   "OffTime"       "0"
EndSection

Section "Monitor"
   Option       "DPMS"  
   Identifier   "Builtin Default Monitor"
EndSection

This should also disable any screensavers etc... which was also ideal for my requirements.

Reboot your device, and it should be good to go.

Automatic login on Angstrom Linux

I found a nice way to achieve it. This works for me with Angstrom (on a Beagleboard xM Rev C4).

Make sure agetty is installed (/sbin/agetty is the standard location). It should be included in every Linux Angstrom image.
Create a script file in any location, for example /home/root/autologin.sh. Edit it and add the following:
```
#!/bin/sh
exec /bin/login -f root
```
Make it executable with the command
```
chmod a+x autologin.sh
```
Edit the file /etc/inittab. Comment out (by adding a “#” at the beginning) the following line
```
1:2345:respawn:/sbin/getty 38400 tty1
```

and add the following line:

    1:2345:respawn:/sbin/agetty -l /home/root/autologin.sh -n 38400 tty1 linux

Hope this helps out there.

Beaglebone inittab issue

inittab has been replaced by systemd

This is how I did it for the serial console. You can probably adapt it easily for tty1 by replacing "serial-getty@..." by "getty@...", but I haven't tested it.

cp /lib/systemd/system/serial-getty@.service /etc/systemd/system/autologin@.service
rm /etc/systemd/system/getty.target.wants/serial-getty@ttyO0.service
ln -s /etc/systemd/system/autologin@.service /etc/systemd/system/getty.target.wants/serial-getty@ttyO0.service

Create the following script file in any location (/home/root/autologin.sh in my case)

#!/bin/sh
exec /bin/login -f root

Make it executable

chmod a+x autologin.sh

Edit /etc/systemd/system/autologin@.service and update the ExecStart command by adding the -n (Do not prompt the user for a login name) and -l (Invoke the specified login_program instead of /bin/login) options.

ExecStart=-/sbin/agetty -n -l /home/root/autologin.sh -s %I 115200

How do I auto-launch a custom webserver on BeagleBone Black?

The bbb uses systemd and service files to control how services start -- there's a README on your bbb in /etc/init.d that provides some info and links. There are also some good pages on systemd at http://fedoraproject.org/wiki/Systemd. There are many services configured by default. Try typing: systemctl list-units This will give you a list of services and some minimal status info. Each of the listed services is configured by (usually) simple service files that tell systemd how to start and these files are in /lib/systemd/system for the most part. I'm not entirely sure what you are asking in your first question, but it sounds like you want to get rid of the "built-in" webserver -- I'm pretty new to bbb myself, and I don't know the answer for sure, but if I find out more I'll post it here.