Re: [gentoo-user] Re: mount: "special device /dev/hdc does not exist". What does this mean?

[Alan Mackenzie]

Hi, Miernik,

On Sat, Jul 19, 2008 at 09:13:09PM +0200, Miernik wrote:
> Alan Mackenzie <acm@×××.de> wrote:
> > # mknod /dev/hdc b 22 0

> > This didn't help one iota.  I had a look at dmesg, but there was no
> > mention of hdc in it.  (It did mention hdg, hdh, where my main hard
> > drives are (don't ask!)).

> Maybe there was some /dev/sda /dev/sdb or something similar?

There's /dev/sda and /dev/sda1, and no other /dev/sd*.  That's where my
UBS stick gets mounted.

> Why do you assume your drive is under /dev/hdx and not /dev/sdx ?

Er, because it's an IDE drive, and on my old Debian system it appears at
/dev/hdc.  My HDD is at /dev/hdh on both old Debian and new Gentoo.

When I do an lspci -v, on my Gentoo system, this shows up for hd[cd]:

00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
        Subsystem: VIA Technologies, Inc. VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE
        Flags: bus master, medium devsel, latency 32
        [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
        [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
        [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
        [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
        I/O ports at a400 [size=16]
        Capabilities: [c0] Power Management version 2

This suggests that the IDE controller has been initialised properly, but
the kernel has ignored it.

> --
> Miernik
> http://miernik.name/

-- 
Alan Mackenzie (Nuremberg, Germany)