Host-only network with Virtual box and Windows host machine: cannot find device eth1
To see a list of the adapters your virtual machine can access, use this:
ls /sys/class/net
This will show you the interface names. For example, with two network adapters set up, my Ubuntu guest looks like this.
eth1 eth2 lo
It does not need to be eth1. On my virtual machine, it's eth2.
What does ls /dev/eth* print, in your case?