Ok, this is one of the two remaining problems that my system has. I have a 6 gig mater and a 30 gig slave, I installed MDK9.1 to the master andgot it running. Then I plugged in teh slave, configured it in BIOS and all that good stuff. I booted linux fine, it found it as a Windows HD, so I used cfdisk (or is it sfdisk?, NTL), deleted the partitions, made a new one:
Primary partition 1, no flags, "Linux" filesystem, no label, 30 gigs
So I write the table, it says that there is no Boot flag, so Dos can't boot this HD. No biggie, I don't want it to boot. Finally I Print the table to make sure it's ok, and It looks fine. yey!
I exit Bash, right click the icon and select mount. FAILURE! It errors out and says "Mount: I could not determine the filesystem type, and none are specified". I know I specified a "Linux" filesystem (It was like 83 or something).
I'm not TOTALLY noobish, I looked around a little to see that the prob is.
On my master disk, I have 3 partitions. I think it's /, swap, and another one. The Swap partition is Linux Swap filesystem, and the others are Linux ext3 (I think that's what it's called. It's somthing 3). This HD obviously works, and the only diffrence is that it has linux ext3 and the other HD only has a "Linux" filesystem. The really weird thing is that in cfdisk "linux ext3" isn't a filesystem option.
That's about it. The bios is right, the jumpers are right, and Linux seems to work. Any ideas? Thx

-Phillip

edit - Problem solved. I used drakedisk.

It sounds like you made the partition but did you put a filesystem on it? See:
man mkfs