Thanks hius07,
I made an update.bin packaged with kindletool but got a message about not having a script file so it would do nothing! and while I don't mind having to write a script I not have much idea of what I need to do, maybe dd from somewhere the images?
So I left that idea.
Then I tried copying the fileupdate_PW2_5.4.3.2_initial.bin but only got 57mb and its 376mb.
then tried using rsync with the --append option but getting some mmc errors
end_request: I/O error, dev mmcblk0, sector 6125645
mmcblk0: timed out sending r/w cmd command, card status 0x400b00
I am wondering what a format of FAT would do or something ....