Ext4 support

[Hongyun]

I still need to get FOG work with ext4 partition. I even tried the 0.33b version, but it still recognize my partition to be ext3fs, and then of course nothing got uploaded.

Can anyone help me with this? It’s kind of urgent as we need to upgrade all our lab computer to Scientific Linux, which can only be installed on ext4 partitions.

Thanks,
Hongyun