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Models covered
Dream Plug

Sub-models:

Overall Status (Wheezy)

Legend :
= OK ; Unsupported(No Driver) ; = Error (Couldn't get it working); [?] Unknown, Not Test ; [-] Not-applicable
= Configuration Required; = Only works with a non-free driver and or firmware

Important Note

• U-Boot upgrade recommended to at least u-boot_2012.04.01-2_armel.deb

  There is currently a bug that stops flash-kernel running in wheezy installer:

• http://bugs.debian.org/721485

• http://bugs.debian.org/721491

Installation

The installation steps here are aimed at a network install where you already have a dhcp and tftp server on your network.

• DreamPlug/NetBootServer

Alternatively, the installer can be booted from a USB stick or SD card. This site has instructions:

• Installing Debian on Plug Computers

Serial Console

U-Boot Upgrade

Take backup of existing environment with cut and paste via serial console. Run

printenv

Setup netflash macro and then run it:

setenv netflash 'dhcp 0x800000; tftpboot 0x800000 dreamplug/flash.scr ; source 0x800000'
run netflash

Follow instructions to re-program the ethernet mac addresses. They are probably on a label on the underside of your dreamplug if you neglected to back them up.

If you aren't using network install, you can upgrade U-Boot using a USB drive:

• DreamPlug/U-bootUpgradeFromUSB

U-Boot Environment

setenv netboot 'dhcp 0x800000;source 0x800000'
setenv netflash 'dhcp 0x800000; tftpboot 0x800000 dreamplug/flash.scr ; source 0x800000'

setenv debbootargs 'console=ttyS0,115200 rw root=/dev/sda2 rootdelay=10'
setenv debusb usb start
setenv debkernel ext2load  usb 0:1 0x00800000 uImage
setenv debinitrd ext2load  usb 0:1 0x01100000 uInitrd
setenv debboot 'setenv bootargs ${debbootargs};${debusb};${debkernel};${debinitrd};bootm 0x00800000 0x01100000'

setenv bootcmd run debboot
saveenv

Some other possibly useful ?U-Boot Environments.

Boot Installer

 run netboot 

Partitioning

Internal uSD card

• /dev/sda1 - leave alone (small ext2 partition for uImage and uInitrd files) - or VFAT (FAT16) 100 Mb, instead... probably depends on models and versions of U-Boot.
• /dev/sda2 - root partition (ext3)

Note that the internal uSD card may be removed in case of need / replaced by another card. Just open the case (the screws are under the "feet" of the case).

External SD card

I chose to put swap partition on a partition on the external sdcard (/dev/sdb?)

Work Around Installer Bugs

Towards end of install before bootloader menu item start a shell and run:  udevadm trigger 

Then continue with installer including running the bootloader entry

Configuration

U-boot-tools

If you are using the DEBIAN version of U-Boot then you can edit the U-Boot environment from Linux.

 apt-get install u-boot-tools 

Then create the file /etc/fw_env.config with the contents:

# DreamPlug with Debian U-Boot 
# Configuration file for fw_(printenv/saveenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# MTD device name       Device offset   Env. size       Flash sector size
/dev/mtd1                   0x0000          0x1000         0x1000

Note: this may not be needed, as it seems I can't see anything in /proc/mtd on mine -- OlivierBerger

Display

There is no video display on the ?DreamPlug. The unit has a serial console when used in conjunction with the optional JTAG unit which is accessed via a USB cable.

Audio

• (not covered yet)

Mouse

• (not covered yet)

Power Management

• (not covered yet)

WiFi

• (not covered yet)

Modem

• (not covered yet)

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System Summary

lspci

lsusb

lsusb -v | grep -E '\<(Bus|iProduct|bDeviceClass|bDeviceProtocol)' 2>/dev/null

USB Host controllers entries (without OHCI, UHCI, EHCI) are removed too.

Resources

Attachments

Some configuration files and sample outputs.

Useful Links

Credits

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