In general the order is correct, but you seem to be mixing together Windows and Linux entries...
Does Linux have putty? I was under impression that it is slightly different there - you would use telnet instead... but I may be wrong....
By the way - if you are going to run DD "inside" the device - you will have to mount your SD card in RW mode and make sure that you have enough space on it. Something like that:
mount -o remount,rw /initrd/mnt/sd
dd if=/dev/mmcblk2 of=/initrd/mnt/sd/full.img bs=1024
But the whole idea of my package is that device internal memory becomes available on the HOST device as a disk - so you could run backup from the outside of the device and you DO NOT NEED TERMINAL ACCESS be it Windows or Linux you are using as a HOST. And you do not need to know com port. You just reboot the device in recovery mode, connect via USB - and boom - you have external USB disk which is THE WHOLE flash memory of your device - fully accessible for your DD.
So I think you got confused...
Last edited by rupor; 04-04-2012 at 10:41 AM.