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Raspberry Pi

Arch Linux Hack

Update Image
Installed from official website, use dd to burn img to sdcard directly.
Update Packages
Use pacman to update. See this page https://wiki.archlinux.org/index.php/Offline_Installation_of_Packages
 Steps (e.g. install gcc)

  1. mkdir -p /var/lib/pacman/sync/{alarm,aur,community,core,extra}
  2. rm -r /var/lib/pacman/sync/{alarm,aur,core,extra,community}/*
  3. tar xzf /path/to/alarm.db.tar.gz -C /var/lib/pacman/sync/alarm
  4. tar xzf /path/to/aur.db.tar.gz -C /var/lib/pacman/sync/aur
  5. tar xzf /path/to/core.db.tar.gz -C /var/lib/pacman/sync/core
  6. tar xzf /path/to/community.db.tar.gz -C /var/lib/pacman/sync/community
  7. tar xzf /path/to/extra.db.tar.gz -C /var/lib/pacman/sync/extra
  8. rm -r /var/lib/pacman/sync/*.db
  9. cp /path/to/alarm.db /var/lib/pacman/sync/
  10. cp /path/to/aur.db /var/lib/pacman/sync/
  11. cp /path/to/community.db /var/lib/pacman/sync/
  12. cp /path/to/core.db /var/lib/pacman/sync/
  13. cp /path/to/extra.db /var/lib/pacman/sync/
  14. pacman -Sup gcc > /path/to/gcc.list (used to check how many libs are there to install in total)
  15. wget -P /path/to/gcc/ -i /path/to/gcc.list (this list may need to update manuelly before use wget)

Then
Choice 1:

  1. cd /path/to/gcc
  2. repo-add gcc.db.tar.gz *.pkg.tar.gz
  3. update pacman.conf

Choice 2 [suggested]:

  1. cp /path/to/gcc/CORRESPONDING_FILE /path/to/ca.us.mirror.archlinuxarm.org/arm/$CORRESPONDING_DIR
  2. update /etc/pacman.d/mirrorlist, set Server = file:///path/to/ca.us.mirror.archlinuxarm.org/arm/$CORRESPONDING_DIR
  3. pacman -S gcc

Auto Connect Wifi after Boot Up

1. Edit /etc/network/interfaces

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
auto wlan0


iface wlan0 inet dhcp
	wpa-ssid "ssid"
	wpa-psk "password"

2. Reboot.
ps: Original like here:
http://learn.adafruit.com/adafruits-raspberry-pi-lesson-3-network-setup/setting-up-wifi-with-occidentalis