I know the post is quite old but have you had any luck with the S210H ?
A friend of mine bought it (thinking it was a S200) and he is stuck.
Using my working (S200) EFI boots the installer, first phase of install goes smooth but later on it reboots straight to Windows.
Anyone had luck (or the skill I lack!) to get the S210 to work?
I opened it and, apparently, apart from a daughterboard for 2xUSB and 2nd ethernet, the inside looks really similar to the S200 (just DP instead of miniDP port).
Any clue will be welcome!