Linux 2.6.29 image boot on TS-7400
My experience based on the complete description by Petr Ledvina at the mailing list.
Download sdcard image file
# wget ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7400-linux/binaries/ts-images/512mbsd-74\
00-linux2629-lenny-eabi.dd.bz2
unzip it
# bzip2 -d 512mbsd-7400-linux2629-lenny-eabi.dd.bz2
extract individual partitons
# dd if=512mbsd-7400-linux2629-lenny-eabi.dd of=part2.dd bs=512
skip=8704 count=5120
do not copy entire part3, end of partition contains lot of zeros,
block count was decreased to ignore them (using hexdump to find end of
data)
# dd if=512mbsd-7400-linux2629-lenny-eabi.dd of=part3.dd bs=512
skip=16896 count=2688
extract master boot record:
# dd if=512mbsd-7400-linux2629-lenny-eabi.dd of=boot.dd bs=446 count=1
copy data from partition 4:
# mkdir part4
# mount 512mbsd-7400-linux2629-lenny-eabi.dd part4 -oloop,offset=$((25088))
# cd part4
# tar -jcS -b8 –one -f ../part4.tar.bz2 .
# umount part4
You can modify initrd linuxrc scripts in part3 ( mount part3.dd part3 -oloop )
Create the sdcard correct partitions(mine was mounted at /dev/sdc)
start fdisk on sd card:
# fdisk /dev/sdc
Partition 1- Sequence of commands
n : create new partition
p: primary partition
enter (1 for default first cilinder)
5
Partition 2 – Sequence of commands
n
p
enter
+3M
Partition 3 – Sequence of commands
n
p
enter
+2M
Partition 4 – Sequence of commands
n
p
enter
enter
Additional Commands – Changing type of partitions 2 and 3 to 0xda
(command) t
(partition) 2
da
(command)t
(partition) 3
da
w -> write
—–
Now copy mbr, part2 and part3:
# dd if=boot.dd of=/dev/sdc
# dd if=part2.dd of=/dev/sdc2 bs=1M
# dd if=part3.dd of=/dev/sdc3 bs=1M
Create jfs filesystem on part4:
# mkfs.jfs /dev/sdc4
mount it and extract root filesystem to it:
# mount /dev/sdc4 part4
# cd part4
# tar -xjS -b8 -p -f ../part4.tar.bz2
# umount part4
# sync
Boot and enoy the development using the 2.6.29 that for myself solved most of the issues I was facing when running the previous kernel provided by Embedded Arm.
