Hello !
I had several problems trying to install WattOS R10 in VirtualBox. The graphic drivers went wrong and this was resolved by CTRL right + F1 followed by CTRL right + F7. I always had the message that the installer had crashed and the message of the bug report was that it was not an Ubuntu package. I checked the MD5 sums and they matched. I then tried to reinstall immediately WattOS after the bug report and when the screen asking me what install I would do I had the choice of installing WattOS next to Ubuntu 16.04 !!! I opted for that one and then the window announcing that the installation completed successfully became frozen. I had to power off the virtual machine and then I could reboot and it went OK.
I think the scripts included in the iso should be revised. There are too many bugs and I am convinced that a newbie would not be able to cope with these problems.
Otherwise it is light and has enough stuff for the people who are mainly surfing on the web.
I send you a text file of /var/log/installer/debug in attachment.
Best regards,
Pourpier 
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