Quote Originally Posted by malaire
Empty extended partition is probably /dev/hda5, but if it doesn't have any filesystem on it, then you can't mount that partition before you create a filesystem on it.
good info, but the empty extended partition would likely be hda3 or hda4, but can not be mounted. Once you create a logical drive(or many drives) in the extended partition they take on names like hda5, hda6 and so on. But the unmountable extended partition has to taake up one of the four partition spaces in the partition table (1 through 4). So it can never be hda5, but the first logical drive in it can be.