Note that this is just a generic Amrbian image, customized for Dreamcatcher hardware. It 
DOES NOT receive Outernet service. 

1. extract the image. it is compressed using "gzip", 
you can use gunzip on linux to extract it:

gunzip image_name.img.gz

On windows, 7zip should work.

2. write it to sdcard. normal writing process, whatever you use for rpi etc.
One easy to use option on all three platforms is etcher. Get it from https://etcher.io/

on linux you can use 

sudo dd if=image_name.img of=/dev/device bs=4M status=progress ; sync ; sync; sync

device can be obtained by inserting your sdcard and then immidiately after that, checking the
output of "dmesg | tail". Or just use "usb image creator" on windows/linux etc. Detailed instructions 
can be found on RPI website:

Linux: https://www.raspberrypi.org/documentation/installation/installing-images/linux.md
Windows: https://www.raspberrypi.org/documentation/installation/installing-images/windows.md
Mac: https://www.raspberrypi.org/documentation/installation/installing-images/mac.md

3. Insert card into dreamcatcher board, slot marked "SD0_OS" - the one next to the LEDs. 
Make sure wifi dongle is also inserted already. Attach uart (optional, only needed if you have trouble booting). 
Boot dreamcatcher by powering it using microusb. It should start booting as soon as power is applied. 
If not, press the "power" button for a couple seconds.

4a. On uart, you should arrive at regular "Dreamcatcher login:" prompt. 
If you see anything related to "panic", rebooting, etc, instead of the login prompt, and board keeps rebooting,
your sdcard is corrupt and you need to burn it again. Or use another card. Make sure you use atleast 4GB sdcard, 
and a fast, good quality one.

4b. The image also support console on usb-serial. This is the easiest way to initially setup the board 
after burning a new sdcard. Insert the OS sdcard and connect the board via microusb to your Laptop/PC. Once the board
finishes booting up (takes about a minute), you should be able to see ttyACM0 device (on linux). You can access it using 
any serial terminal programs like picocom, minicom, screen or putty (on windows, for example). 

5. Use "root" as username and "1234" as password. On first login, it will ask for new password and change root password.
It will also ask for a new username to create a regular user, and for user password and other info. 
You can just press "enter" for the other info (but not for the  new username or password). 
This user is what you should login as normally.
Recommend you use outernet and outernet as username/password for this, so you don't forget.

6. To connect to wifi network, use command line:

nmcli d wifi connect your_ssid password your_password

or using the text UI:

nmtui


to check assigned ip use:

/sbin/ifconfig

SSID/password, once configured, will be stored, and should be applied automatically at next boot.

7. Note that unlike Skylark, the root filesystem here is modified and is writeable. so it is important you shutdown this properly:

sudo poweroff

chances of corrupting your sdcard are much higher than in skylark. Use a good sdcard. 

8. This is regular debian. apt update, apt upgrade, etc should all work as normal. You are on your own. Enjoy.

9. LEDs: The leds from the SMA connector down to Sdcard slot, in order:

a. Packet indicator: flashes when Outernet packets are received. Cannot be used directly. Not supported on Armbian.

b. Busy indicator: flashes when the radio is operational. Cannot be used directly. Not supported on Armbian.

c. USR1: sdcard activity indicator. equivalent of the HDD activity light on laptops/desktops

d. USR2: heartbeat: flashes when kernel is booted and working normally. The flash pattern is:

long off, N short flashes, long off, repeat. 

N = 2 * loadavg. 

e. Power: White LED, on when board is powered.