From Open Source@Seneca
What is headless mode?
Headless mode is a system configuration in which the display device, keyboard, or mouse is lacking. When this feature is enabled, firstboot is bypassed.
Enabling headless mode on Pidora
To enable headless mode, you will need to create a file named "headless" in the boot filesystem on your SD card before you insert the card into your Pi.
Tutorial Video: http://youtu.be/ALUAmw6Mz_o
Insert the SD card into your system, and create a file named "headless" in the filesystem labelled "boot".
Insert the SD card into your system. Only the boot filesystem will be made available, because Windows will not be able to read other partitions on the card. Create a file named "headless" on that
There are two possible configurations for headless-mode "DHCP" configuration and "Static" configuration.
If you would like to obtain an ip address dynamically via DHCP, leave the "headless" file empty.
If you would like to specify a specific IP address you will need to include the IP Address, Netmask and Gateway, place the following information in the "headless" file:
Sample headless file Static Configuration
There have been two added options to the headless file:
- RESIZE this will initiate a rootfs-resize if you want to use the full amount of space on the SD card.
- SWAP sets the amount of swap you would like to use.
IPADDR=192.168.1.105 NETMASK=255.255.255.0 GATEWAY=192.168.1.1 RESIZE SWAP=512
Headless Mode is enable with DHCP -- How do I find out my ip-address?
After you have enabled headless mode with either the DHCP configuration or Static IP configuration, the ip address that has been assigned to Raspberry Pi will be played through the speakers 2 minutes after you have powered the Raspberry Pi, and 30 seconds later it will also flash your ip address through Pi's OK/ACT LED.
Headless Mode Script Update
Initially there were a few issues with dchp and headless mode since our release the headless script has been updated. It has not been officially added to the updates repo yet but, if you are interested in trying this mode out now you can copy and replace the old headon script with the updated one located at /usr/bin/headon
#!/bin/bash headless=`ls /boot/headless* 2> /dev/null | head -n 1` echo "Headless Mode Enabled" if [ -e "$headless" ] then systemctl enable sshd.service systemctl start sshd.service systemctl stop firstboot-graphical.service systemctl disable firstboot-graphical.service headtext=`grep '[0-9]' "$headless"` if [ "$headtext" != "" ] then ip_address=$(sed -n 's/IPADDR=//p' $headless) ip_netmask=$(sed -n 's/NETMASK=//p' $headless) ip_gateway=$(sed -n 's/GATEWAY=//p' $headless) swap_size=$(sed -n 's/SWAP=//p' $headless) cat << EOF > /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 IPADDR=$ip_address NETMASK=$ip_netmask GATEWAY=$ip_gateway BOOTPROTO=static ONBOOT=yes NM_CONTROLLED=yes EOF systemctl restart NetworkManager.service else cat << EOF > /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 BOOTPROTO=dhcp ONBOOT=yes NM_CONTROLLED=yes EOF fi else systemctl stop headless-mode.service systemctl disable headless-mode.service fi #Check headless file for resize option #Check headless file for resize and swap option grep -iE 'resize|swap' $headless if [ $? -eq 0 -a ! -f /.resized ] then touch /.rootfs-repartition touch /.resized echo $swap | grep -o '[0-9]*' > /.swap reboot else #resized already remove resize flag if it exists rm -f /.rootfs-repartition rm -f /.swap fi #read ip address systemctl start ip-read.service #flashing ip address systemctl start ip-flash.service