[gentoo-catalyst] Seeing devices during initrd

[Paul Smith]

Hi all;

I am trying to mount a filesystem from my harddisk during the initrd
bringup (during linuxrc processing).

If I go to /sys/block I can see the block device listed there (in my
case /sys/block/sda).  If I go into that directory I can see the
partition I want to mount (/sys/block/sda/sda1).


But, there is no device in /dev for this: no /dev/sda, no /dev/sda1.  I
am using udev, and it is working (for example I CAN see and mount my
cdrom drive, /dev/hdc).

However, after my system boots up I _do_ see /dev/sda and /dev/sda1, and
I can mount them.

So something happens during the "real" system boot to make those visible
to udev, that is not happening during initrd.  But yet, they _ARE_
visible to /sys.


I guess I need a little direction here: how does udev find out about
these things; how is it that /sys knows they're there, but no device
exists for them; is there any way to make a /dev entry for these items,
give the contents of /sys (can I mknod them myself given info in /sys
maybe?)

Is it coldplug that is setting this up?

I'm not familiar enough with udev etc. to figure out what's going on
here; hints anyone?

-- 
-------------------------------------------------------------------------------
 Paul D. Smith <psmith@××××××.com>           HASMAT: HA Software Mthds & Tools
 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist
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   These are my opinions---Nortel Networks takes no responsibility for them.
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