Compiles 2.6.23.9 kernel, sees drive as hda, reiserfs still thinks it's sda

spiffytech · 12-03-2007, 08:46 AM

I'm trying to upgrade my kernel from the Slackware 12 default to the newest 2.6.23.9. After I compile the kernel, I install it and reboot, only to see reiserfs complain, thinking that the filesystem is supposed to be at sda2, but the kernel identifies it as hda2. How can I make the kernel identify my (sata) drive as sda?

polymath69 · 12-03-2007, 09:37 AM

Why do you need your sata drive to be treated as SCSI? You're probably better off without invoking that whole emulation layer.

If you just can't boot, try passing root=/dev/hda2 to the kernel at boot, and make sure /etc/fstab agrees.

spiffytech · 12-03-2007, 09:54 AM

OK, that worked. I'd changed grub, but forgot to change fstab to reflect hda.

I wanted to use sda because that's what I've seen in every other distro for the last 6-12 months and I wanted to keep my Slackware install in line with the rest of the Linux world. It's not terribly important, it just seemed like the easiest way to fix my boot issue (I thought the problem was with some reiserfs config that pointed to sda)

guzzi · 12-03-2007, 10:15 AM

This sda being called hda by the kernel happens when I forget to select SATA by enabling pixx when configuring a kernel.

Have not made that error lately, but I recall it caused some other strangeness.

H_TeXMeX_H · 12-03-2007, 12:54 PM

Performance-wise you want to compile SATA support into the kernel (or as module).

gnashley · 12-04-2007, 01:09 AM

reiserfs doesn't know anything about the drive hda or sda. You see the error when tgrub tries to mount the root partition and the entry in fstab doesn't agree with the entry in your grub menu.lst. The same would happen no matter what file sysstem you are using.

mattydee · 12-05-2007, 08:01 AM

Quote:

Originally Posted by polymath69

Why do you need your sata drive to be treated as SCSI? You're probably better off without invoking that whole emulation layer.

Why do distros like Ubuntu do this?

I've noticed my hda and hdb drives are sda and sdb in Ubuntu.