Ken Teh wrote:
I'm getting confused with the sda/hda naming conventions. I thought all
SATA disks were sd devices. They were a while back but apparently, not
anymore. And, I can't seem to make any sense of when an sda is an hda.
I'm currently installing a system with a SATA system disk that has a IDE
CDROM. A systemrescuecd (Gentoo based kernel) identifies the disk as an
sda. But the 5.2 installer says it's an hda. There's a single IDE
connector on the MB on which hangs a CDROM drive. Apparently, it's not an
hda. What is it? An sda?
What gives?
The real answer is, "It depends."
It depends on which driver is used.
I have an all SATA system. By default, on SL5 the first drive is hda.
However, as I recall performance sucked so someone here suggested I tell
the kernel "hda=noprobe." With this argument, the drive appears as sda.
On a similar system running Fedora, the first drive is normally sda, and
I don't know whether I can make it appear as hda without rebuilding the
kernel.
I note that the new naming convention is causing problems with somewhat
randomised naming of drives, particularly when installing with Anaconda.
--
Cheers
John
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