Debian Update

Get new Debian image:
wget ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7800-linux/
binaries/ts-images/512mbsd-latest.dd.bz2

Unpack:
tar -xf 512mbsd-latest.dd.bz2

Write image to SD-Card:
Windows: dd if=512mbsd-latest.dd of=\\?\Device\Harddisk1\Partition0

Linux: dd if=512mbsd-latest.dd of=\dev\sdb1


Put SD-Card into TS-7800, set J1 (in order to boot from SD-Card) and switch TS-7800 on.

Log in via serial console (e.g. Hyperterminal) or telnet 192.168.0.50.

Execute createmtroot to write new image to NAND (this might take some minutes).