I have a similar issue.
OMV installed on SSD 64gb OCZ.
If i log into OMV Gui with admin i get blank white screen
If i log in as a user i get the user screen with info.
ii openmediavault 2.1.19 all Open network attached storage solution
ii openmediavault-keyring 0.4 all GnuPG archive keys of the OpenMediaVault archive
ii openmediavault-omvextrasorg 2.8 all OMV-Extras.org Package Repositories for OpenMediaVault
ii openmediavault-owncloud 2.0.3 all OpenMediaVault ownCloud plugin
ii openmediavault-plexmediaserver 1.0.12 all OpenMediaVault Plex Media Server plugin
ii openmediavault-transmissionbt 1.4 all OpenMediaVault Transmission (BitTorrent client) plugin.
# The loopback network interface
auto lo
iface lo inet loopback
iface lo inet6 loopback
# eth0 network interface
auto eth0
allow-hotplug eth0
iface eth0 inet static
address 192.168.0.2
gateway 192.168.0.1
netmask 255.255.255.0
iface eth0 inet6 manual
pre-down ip -6 addr flush dev $IFACE
root@MiniHAL:~# service nginx status
nginx is running.
root@MiniHAL:~# service openmediavault-engined status
omv-engined is running
Sry if i hijacked the thread.