SCP is almost the only way I get files to my iLiad. First, I setup the unbrickable iliad package, so the root user and networking is setup (I changed interfaces to use dhcp). Then, I used this pakage to install dropbear which includes scp:
https://www.mobileread.com/forums/sho...9&postcount=11
I've never tried to unzip something directly on my iLiad. I always download it to my computer, unzip, and then copy. I can start supplying tarballs instead...