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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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