Supported Devices

WM8505

Installation

Introduction

This is a little "how to" setup CRUX-ARM in devices based on WM8505 chipset. This will try to make a little explanation about the needed steps to help people to put this distribution on a SD card. We'll need to setup two partitions, the first one a VFAT partition with the uBoot and kernel files provided by abrassive. The next step will be to deploy the rootfs and make some little changes to the default files, to adapt the standard rootfs to this devices.

Media preparation

• Needed (recommended) partitions:

partition1:
type: vfat 
size: min 2M 
target mount point /boot

partition2:
type: ext2
size: min 230M 
target mount point /

partition3:
type: swap
size: 128M
target swap

Using /mnt as SD card mount point in the host

• Get abrassive's kernel:

# wget http://resources.crux-arm.nu/files/devices/wm8505/fatpart.tgz

• Mount the boot partition and extract there:

# tar -C /mnt -xvzf fatpart.tgz

• Get the release and check the md5sum:

# wget http://resources.crux-arm.nu/releases/2.6/crux-arm-rootfs-2.6.tar.bz2.md5
# wget http://resources.crux-arm.nu/releases/2.6/crux-arm-rootfs-2.6.tar.bz2
# md5sum crux-arm-rootfs-2.6.tar.bz2

• Mount root partition (/) in your host mount point (mnt) and extract sources there:

# sudo tar -C /mnt/ -psxvjf crux-arm-rootfs-2.6.tar.bz2

• Get the kernel modules and copy them to the right place:

# wget http://resources.crux-arm.nu/files/devices/wm8505/modules-2.6.29-wm8505.tar.bz2
# tar xvfj modules-2.6.29-wm8505.tar.bz2
# sudo cp -R lib/modules/2.6.29-00236-g4f8dbbb-dirty/ /mnt/lib/modules/

• Get wifi firmware and extract it:

# wget http://resources.crux-arm.nu/files/devices/wm8505/rt3070sta.tar.bz2
# sudo tar -C /mnt/ -xvjf rt3070sta.tar.bz2

• Get wm8505's needed/modified files:

# wget http://resources.crux-arm.nu/files/devices/wm8505/rc
# sudo cp rc /mnt/etc/
# wget http://resources.crux-arm.nu/files/devices/wm8505/rc.shutdown
# sudo cp rc.shutdown /mnt/etc/

• Custom changes needed for wm8505

Edit /mnt/etc/group
- Add a new group and your user to it:
   inet:x:3003:root,youruser

• Setup files:

/mnt/etc/rc.conf     System setup
/mnt/etc/rc.d/net    Net setup
/mnt/etc/fstab       Fix to your needs (sample file: http://resources.crux-arm.nu/files/devices/wm8505/fstab)