1. Unmount and then, after turning off the server, physically disconnect all drives. If you are using Greyhole, check out the [[Reconnect existing Greyhole storage pool]] page. This will allow you to disconnect the data drives, and only risk the OS drive. Turn the server back on again.
{{Code|umount /var/hda/files/drives/sdb1/}-a}
2. Change the interfaces file to reflect eth1, not eth0: