sgjava/pine64-debootstrap

Create a minimal Ubuntu rootfs from Longsleep's Ubuntu image

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| |    _| |_| |\  || |___| \_/ |\___  | | (_| |  __/ |_) | (_) | (_) | |_\__ \ |_| | | (_| | |_) |
\_|    \___/\_| \_/\____/\_____/    |_/  \__,_|\___|_.__/ \___/ \___/ \__|___/\__|_|  \__,_| .__/ 
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If you want to build your own Ubuntu 16.04 rootfs from Longsleep's image then you stopped by the right place. You just have to run a few scripts (only one is interactive) and you will end up with a rootfs archive to copy to SD.

Requirements

• PINE64 (tested on 2GB version)
• 5V/2A PSU (make sure the PSU puts out stable power or it might not boot)
• SD card with Longsleep's latest image
  • Use a second SD if you do not want to destroy the rootfs with Longsleep's image. It will need to contain the same image in order to boot.
• PINE64 has Internet access
• HDMI display
• USB keyboard to log in and get IP address after first boot
• PC/laptop to SSH into PINE64

Provides

• Minimal Ubuntu 16.04 server for headless use
  • You can add a desktop later on if you wish
  • Weighs in at under 1 GB uncompressed (slightly larger than Longsleep's image)
• USB wifi enabled
  • Tested with ODROID Wifi Module 3

Prepare PINE64

• If you already have an SD with Longsleep's image then skip to Create rootfs
• Create bootable SD from Longsleep's image
• Insert SD card into PINE64 along with 5V/2A PSU, network cable, USB keyboard and HDMI display
• Power on PINE64
• Login as ubuntu/ubuntu
• ifconfig and get IP address assigned by DHCP.
• Switch back to your PC and ssh ubuntu@ipaddress
• Resize SD card
  • cd /usr/local/sbin
  • sudo ./resize_rootfs.sh
• sudo apt-get update
• sudo apt-get upgrade

Create rootfs

• sudo apt-get install git-core
• git clone https://github.com/sgjava/pine64-debootstrap.git
• cd pine64-debootstrap
• Pick your native language pack instead of en if desired
  • sudo nano minimal.sh
• sudo ./start.sh
  • Answer prompts required by debootstrap second stage
• sudo ./finish.sh
• Copy archive to your PC/laptop
  • scp ubuntu@ipaddress:~/pine64-debootstrap/pine64-xenial-arm64.tar.gz .

Extract rootfs and boot

• Use a fresh SD Longsleep's image. We are going to delete the old rootfs, so insert the SD into your PC/laptop
• Mount SD and find path
  • Under Ubuntu 16.04 it mounted as /media/username/rootfs (change username as needed)
• Delete Longsleep's rootfs
  • sudo rm -rf /media/username/rootfs
  • sync
• Extract new rootfs to SD
  • sudo tar -pzxf pine64-xenial-arm64.tar.gz -C /media/username/rootfs
  • Wait a minute or so before sync (I waited for my SD writer activity light to stop blinking). I seem to have better luck this way producing a clean rootfs
  • sync
  • Eject SD and boot in PINE64
  • Login as test (and password you assigned)

After you can boot successfully

• Install linux-firmware cpufrequtils usbutils
  • sudo su -
  • apt-get -y install linux-firmware cpufrequtils usbutils
  • update-rc.d ondemand disable

  • cat << EOF > /etc/default/cpufrequtils
    ENABLE="true"
    GOVERNOR="conservative"
    MAX_SPEED=960000
    MIN_SPEED=480000
    EOF

  • reboot -f

Configure wifi

• Plug in USB Wifi adapter and boot PINE64 (I used ODROID Wifi Module 3)
• lsusb
  • Bus 001 Device 002: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter
• iwconfig

  • wlx7cff80d3271f  IEEE 802.11bgn  ESSID:off/any  
        Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
        Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
        Power Management:on

• Copy device name (wlx7cff80d3271f for example from above)
• sudo nano /etc/network/interfaces.d/wlx7cff80d3271f
  • For DHCP

  auto wlx7cff80d3271f
    iface wlx7cff80d3271f inet dhcp
    wpa-ssid ssid
    wpa-psk password

  • For static

  auto wlx7cff80d3271f
    iface wlx7cff80d3271f inet static
    address 192.168.1.69
    netmask 255.255.255.0
    gateway 192.168.1.1
    dns-nameservers 192.168.1.1
    wpa-ssid ssid
    wpa-psk password

• sudo reboot -f
• iwconfig

  • wlx7cff80d3271f  IEEE 802.11bgn  ESSID:"cybertown"  
        Mode:Managed  Frequency:2.437 GHz  Access Point: FF:EE:FF:F2:FF:FE   
        Bit Rate=7.2 Mb/s   Tx-Power=20 dBm   
        Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
        Power Management:off
        Link Quality=62/70  Signal level=-48 dBm  
        Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
        Tx excessive retries:0  Invalid misc:5   Missed beacon:0

• Wifi only
  • Comment out all lines in eth0
  • sudo nano /etc/network/interfaces.d/eth0
  • Disconnect Ethernet cable
  • sudo reboot -f

FreeBSD License

Copyright (c) Steven P. Goldsmith

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