Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

The issue I'm having is that only the first 4 of my 6 drives are showing up - sda through sdd. No sde+sdf in udev, no sde+sdf in /sys/block.

I have an MSI 760GM-P23FX motherboard, and as near as I can tell it handles all 6 SATA ports through the SB710 southbridge. All 6 are colored the same, and from the manual it seems there should be no differences between them. Furthermore, on POST the bios detects all 6 drives.

I'm running a custom-compiled (gotten direct from I'd assume I missed a config option, except it's finding the first 4 drives just fine. Is the kernel's SFF support limited to 4 drives or something?

share|improve this question

The answer appears to be, "Yes, Linux only supports the first 4 drives in SFF/legacy IDE mode." When I switched the BIOS to AHCI, everything just worked.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .