Ah, I had seen that thread but didn't notice the change in the script name.
For those who've stumbled on this tread, the update process for Hyper-V is:
Howto:
If the device has access to the internet:
wget http://wanos.org/updateinfo/update-2.0.3-hyperv.sh && chmod +x update-2.0.3-hyperv.sh
./update-2.0.3-hyperv.sh update
If the device does not have access to the internet, manually download and then scp/winscp the following two files to the device:
http://wanos.org/updateinfo/update-2.0.3-hyperv.sh
http://wanos.org/updateinfo/update-2.0.3-hyperv.tar.gz
./update-2.0.3-hyperv.sh update
If the device has intranet access then:
wget http://10.1.1.10/dir/update-2.0.3-hyperv.sh && chmod +x update-2.0.3-hyperv.sh
wget http://10.1.1.10/dir/update-2.0.3-hyperv.tar.gz
./update-2.0.3-hyperv.sh update