Hello, I meet the network problem

[raven]

I successfully build chromium os and use cros_vm ro start it.

But it needs network to login Gmail, I set the network proxy, but it seems that the proxy didn't receive any requests when I choose to login and want to install chromiumos. Is there any solutions? Thanks for your reading. 

[raven]

How can I add disk to install chromiumos in cros_vm. I can't add disk, so that the program /usr/sbin/chromeos-install can't install just one disk