Put 'deb http://scratchbox.org/debian/ ./' in /etc/apt/sources.list

apt-get install scratchbox-toolchain-arm-gcc3.3-glibc2.3

Get kernel-2.4.32

Apply patch.5mx

export PATH=/scratchbox/compilers/arm-gcc-3.3.4-glibc-2.3.2/bin/:$PATH

make mrproper

copy config.2.4.32 to .config

make oldconfig
select the correct keyboard for your psion

make dep

make Image

Serial port doesn't work - I'm not surprised. Poweron/off button also doesn't work - Don't know why