Finally (after several retries) the lady was installed ok. But as I am using class 10 sdcard along with Pali's u-boot I am getting hit by -110 sdcard errors. Pali, we should do something about u-boot

On the other hand, it seems install.sh (and friends) leaves sdcard partition table in a total mess - nowhere I can see changing the partition type, so at the end we have 3 partitions marked as ext3. And layout looks wrong too, as ununtu does partition resize on every boot. As someone else mentioned, ubuntu is unable to swapon /dev/mmcblk0p3 (swapon gives error 255, where is mkswap command?).
Anyway, after several reboots it seems finally I have a wifi connection and the installer will make it

EDIT:
No joy, seems like I have to install uboot-pr13