=====Raspberry Pi / Pi Zero - headless, WiFi and SSH==== This how-to expects a Linux based install host. I've used Fedora. ====Install and configure==== * Download latest (RPI 3+ needs 2018-03-13 or later) [[https://www.raspberrypi.org/downloads/raspbian/|Raspbian Stretch Lite]]. * Unzip: $ unzip 2018-03-13-raspbian-stretch-lite.zip * Insert the SD-card and find device name:

$ dmesg

[  477.499343] mmc0: new ultra high speed SDR104 SDHC card at address 0007
[  477.500664] mmcblk0: mmc0:0007 SD32G 29.0 GiB
[  477.503750]  mmcblk0: p1

* Unmount if automounted:$ umount /dev/mmcblk0p{1,2} * Write image to SD card:$ sudo dd bs=4M if=2018-03-13-raspbian-stretch-lite.img of=/dev/mmcblk0 conv=fsync oflag=direct status=progress * Mount SD card (reinsert card, or mount manually), find partitions:

$ sudo fdisk -l /dev/mmcblk0

Disk /dev/mmcblk0: 29 GiB, 31117541376 bytes, 60776448 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x84fa8189

Device         Boot Start     End Sectors  Size Id Type
/dev/mmcblk0p1       8192   92159   83968   41M  c W95 FAT32 (LBA)
/dev/mmcblk0p2      92160 2534887 2442728  1,2G 83 Linux

* Add the file 'ssh' to root of SD card to enable SSH:$ touch /run/media//boot/ssh * Generate WiFi config:

$ cd /run/media//rootfs
$ wpa_passphrase YOUR_SSID YOUR_PASSWORD

* Add generated config, (remove the plaintext passphrase):


$ sudo vi etc/wpa_supplicant/wpa_supplicant.conf

country=
network={
        ssid=""
        psk=
}

* Unount SD-card:


$ cd
$ umount /dev/mmcblk0p{1,2}

* Insert card into RPI, power on. * Check DHCP leases for IP-address. * Log in to new RPI, the initial password is ''raspberry'':ssh pi@ * Add other accounts, remove pi user or change the password. * Add additional users, remove unwanted users. * Configure the Raspberry Pi; change hostname, boot options, locale, timezone, disable ports, etc. raspi-config * Reboot * Update and reboot:

sudo apt-get update
sudo apt-get dist-upgrade
reboot

====Update firmware==== * Install rpi-update:$ sudo apt-get install rpi-update * Update firmware:$ sudo rpi-update ====WiFi status==== * Show current status:

iwconfig
wpa_cli status

* Wavemon: {{::screenshot_from_2017-05-13_14-51-34.png?nolink|}}{{:screenshot_from_2017-05-13_14-53-38.png?nolink|}} ====Disable HDMI==== * Add lines below to /etc/rc.local, above exit 0


# Disable HDMI
/usr/bin/tvservice -o

{{tag>[hardware rpi raspberry pi linux]}} ====Disable Other wifi adapters==== * Recent Raspbian distributions use dhcpcd5 for connectivity. You can deny configuration of an interface by configuring ''/etc/dhcpcd.conf''denyinterfaces wlan1