On: GalliumOS – Lightweight Linux for Chromebooks

[witty_username]

So, enabling OS verification wipes the data on the Chromebook or what?

[msh → witty_username]

Yes, it detects that the OS have been tampered with when you have dual boot or use crouton and nukes the disc with a clean install.

[milankragujevic → witty_username]

Yes, every time you enable or disable OS verification the whole eMMC flash memory is deleted.