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SubjectRe: 2.6.11-rc4-mm1 : IDE crazy numbers, hdb renumbered to hdq ?
On Wed, Feb 23, 2005 at 11:36:50PM +0100, Laurent Riffard wrote:
> Le 23.02.2005 21:12, Andrew Morton a ?crit :
> >Helge Hafting <helge.hafting@aitel.hist.no> wrote:
> >
> >>This kernel came up, but my boot script complained about no /dev/hdb3
> >>when trying to mount /var.
> >>(I have two IDE disks on the same cable, and an IDE cdrom on another.)
> >>They are usually hda, hdb, and hdc.
> >>
> >>MAKEDEV hdq did not help. Looking at sysfs, it turns out that
> >>/dev/hdq1 is at major:3 minor:1025 if I interpret things right.
> >>(/dev/hda1 is at 3:1, which is correct.)
> >>These numbers did not work with my mknod, it created 7:1 instead.
> >>So I didn't get to test this mysterious device.
> >>
> >>But I assume this is a mistake of some sort, I haven't heard about any
> >>change in the IDE numbering coming up? 2.6.1-rc3-mm1 works as expected.
> >>
> >>It may be interesting to note that my root raid-1 came up fine,
> >>consisting of hdq1 and hda1 instead of the usual hdb1 and hda1.
> >
> >
> >I don't know what could be causing that. Please send .config. If you set
> >CONFIG_BASE_FULL=n, try setting it to `y'.
> >
>
> this is just a "me too"...
>
> Here is some few lines from dmesg :
>
> hdb: cache flushes supported
> hdq: hdq1 hdq2 < hdq5 hdq6 hdq7 hdq8 >

Neat.

> ~$ ls -l /dev/hd*
> brw-rw---- 1 root disk 3, 0 f?v 23 22:45 /dev/hda
> brw-rw---- 1 root disk 3, 1 f?v 23 22:45 /dev/hda1
> brw-rw---- 1 root disk 3, 10 f?v 23 22:45 /dev/hda10
> brw-rw---- 1 root disk 3, 2 f?v 23 22:45 /dev/hda2
> brw-rw---- 1 root disk 3, 3 f?v 23 22:45 /dev/hda3
> brw-rw---- 1 root disk 3, 4 f?v 23 22:45 /dev/hda4
> brw-rw---- 1 root disk 3, 5 f?v 23 22:45 /dev/hda5
> brw-rw---- 1 root disk 3, 6 f?v 23 22:45 /dev/hda6
> brw-rw---- 1 root disk 3, 7 f?v 23 22:45 /dev/hda7
> brw-rw---- 1 root disk 3, 8 f?v 23 22:45 /dev/hda8
> brw-rw---- 1 root disk 3, 9 f?v 23 22:45 /dev/hda9
> brw-rw---- 1 laurent cdrom 22, 0 f?v 23 22:45 /dev/hdc
> brw------- 1 root root 22, 64 f?v 23 22:45 /dev/hdd
> brw-rw---- 1 root disk 3, 1024 f?v 23 22:45 /dev/hdq

Looks like you're using udev.

> CONFIG_BASE_FULL=y
> CONFIG_BASE_SMALL=0

Ok, that's unrelated to the weird IDE numbering then.

--
Mathematics is the supreme nostalgia of our time.
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