I configured an Intel 6-port SATA AHCI controller for passthrough, and now none of my virtual machines show up. In fact, the host doesn't even realize that there's a datastore. I am unable to correct this situation either - when I uncheck the controller from passthrough, and reboot the host, the controller shows up as checked and configured for passthrough again. Editing the /etc/vmware/esx.conf file to change the device owner results in the same thing - after a reboot the file reverts back to what it was. I even copied the local.tgz file to another machine, untarred the file, and edited the esx.conf file, re-tarred it, and copied it back, but that doesn't work either. Is there any way to get the configuration back to the way it was (no passthrough)?