# basic setup (we will work in /g9, but you can do it where you want)

/> export PATH=/g9/u-boot-linaro-stable/tools:$PATH
/> sudo mkdir g9
/> sudo chown cro.cro g9
/> cd g9
/g9> mkdir d

# you need a SD card with a small FAT partition to put the
# bootloader and the kernel, and a big ext4 partition to put
# Angstrom stuff or whatever (if you go Angstrom, build for
# omap4430-panda, that worked for me with my custom init-telnetd.c,
# see below)

/g9> sudo fdisk /dev/sdb

Command (m for help): p

Disk /dev/sdb: 1967 MB, 1967128576 bytes
61 heads, 62 sectors/track, 1015 cylinders, total 3842048 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *          63       80324       40131    c  W95 FAT32 (LBA)
/dev/sdb2           80325     3842047     1880861+  83  Linux

Command (m for help): q

/g9> sudo file -s /dev/sdb1
/dev/sdb1: x86 boot sector, mkdosfs boot message display, code offset 0x58, OEM-ID " mkdosfs", Media descriptor 0xf8, heads 255, sectors 80262 (volumes > 32 MB) , FAT (32 bit), sectors/FAT 618, serial number 0x77286f11, label: "boot       "
/g9> sudo file -s /dev/sdb2
/dev/sdb2: Linux rev 1.0 ext4 filesystem data, UUID=2585250a-45e0-4b8a-a249-69e83f4d3f5e (needs journal recovery) (extents) (large files) (huge files)

# get an arm toolchain from wherever you want
# (eg. http://www.angstrom-distribution.org, or get from
# archos git repository, a toolchain is built in archos-gpl-gen9)

# first step: bootloader

/g9> git clone git://git.linaro.org/boot/u-boot-linaro-stable.git
/g9> wget http://sed.free.fr/archos/1.0/u-boot-gen9-patch.diff.gz
/g9> wget http://sed.free.fr/archos/1.0/u-boot-my-patch.diff.gz
/g9> wget http://sed.free.fr/archos/1.0/boot.cmd
/g9> gunzip u-boot-gen9-patch.diff.gz
/g9> gunzip u-boot-my-patch.diff.gz
/g9> cd u-boot-linaro-stable
/g9/u-boot-linaro-stable> git checkout f9e40ea
/g9/u-boot-linaro-stable> patch -p 2 < ../u-boot-gen9-patch.diff 
/g9/u-boot-linaro-stable> patch -p 1 < ../u-boot-my-patch.diff 
/g9/u-boot-linaro-stable> make archos_a80s_config
/g9/u-boot-linaro-stable> make
/g9/u-boot-linaro-stable> cd ..
/g9> mkimage -A arm -O linux -T script -C none -a 0 -e 0 -n 'Execute uImage.bin' -d boot.cmd boot.scr
/g9> sudo mount /dev/sdb1 d
/g9> sudo cp u-boot-linaro-stable/MLO d
/g9> sudo cp u-boot-linaro-stable/u-boot.img d
/g9> sudo cp boot.scr d
/g9> sudo umount d

# second step: ATAGS

/g9> wget http://sed.free.fr/archos/1.0/atags.c
/g9> wget http://sed.free.fr/archos/1.0/atags.raw
/g9> gcc -Wall atags.c -o atags
/g9> ./atags > atags.bin
/g9> sudo mount /dev/sdb1 d
/g9> sudo cp atags.bin d
/g9> sudo umount d

# third step: kernel

/g9> wget http://sed.free.fr/archos/1.0/linux.diff.gz
/g9> wget http://sed.free.fr/archos/1.0/linux.config.gz
/g9> gunzip linux.diff.gz
/g9> gunzip linux.config.gz
/g9> git clone git://gitorious.org/archos/archos-gpl-gen9-kernel-ics.git
/g9> cd archos-gpl-gen9-kernel-ics
/g9/archos-gpl-gen9-kernel-ics> patch -p 1 < ../linux.diff 
/g9/archos-gpl-gen9-kernel-ics> cp ../linux.config .config
/g9/archos-gpl-gen9-kernel-ics> make ARCH=arm CROSS_COMPILE=arm-linux- uImage
/g9/archos-gpl-gen9-kernel-ics> cd ..
/g9> sudo mount /dev/sdb1 d
/g9> sudo cp archos-gpl-gen9-kernel-ics/arch/arm/boot/uImage d
/g9> sudo umount d

# fourth step: test with a basic /init (prints "hello world" every second)

/g9> wget http://sed.free.fr/archos/1.0/init-hello.c
/g9> arm-linux-gcc -static -Wall -o init init-hello.c 
/g9> arm-linux-strip init
/g9> sudo mount /dev/sdb2 d
/g9> sudo cp init d
/g9> sudo umount d

# test with a hackish init that runs telnetd (I use Angstrom
# to have telnetd and a more or less working environment; this
# is a big hack)

/g9> wget http://sed.free.fr/archos/1.0/init-telnetd.c
/g9> arm-linux-gcc -static -Wall -o init init-telnetd.c 
/g9> arm-linux-strip init
/g9> sudo mount /dev/sdb2 d
/g9> sudo cp init d
/g9> sudo umount d

# reboot the g9 and then telnet to it:

/g9> sudo ifconfig usb0 up 10.0.0.1
/g9> telnet 10.0.0.2
Trying 10.0.0.2...
Connected to 10.0.0.2.
Escape character is '^]'.

.-------.                                           
|       |                  .-.                      
|   |   |-----.-----.-----.| |   .----..-----.-----.
|       |     | __  |  ---'| '--.|  .-'|     |     |
|   |   |  |  |     |---  ||  --'|  |  |  '  | | | |
'---'---'--'--'--.  |-----''----''--'  '-----'-'-'-'
                -'  |
                '---'

The Angstrom Distribution (none)


Angstrom 2010.7-test-20110220 (none)

/ #