[parisc-linux] Problems with raw interface.

[Grant Grundler]

On Fri, Sep 19, 2003 at 12:36:55AM +0530, SUDARSANAN,RANJITH (HP-India,ex2) wrote:
...
> oak:/home/sranjith# raw /dev/raw/rawsdb /dev/sdb
> /dev/raw/raw1:  bound to major 8, minor 16
> oak:/home/sranjith# raw /dev/raw/rawsda /dev/sda
> /dev/raw/raw2:  bound to major 8, minor 0
> 
> oak:/home/sranjith# raw -qa
> /dev/raw/raw1:  bound to major 8, minor 16
> /dev/raw/raw2:  bound to major 8, minor 0

I get the impression "raw" is ignoring your input parameter
to use /dev/raw/rawsdb and is using /dev/raw/raw<N> instead.
So it looks like you are comparing the wrong data...

root@debian:/dev# raw --help
raw: invalid option -- -
Usage:
  raw /dev/raw/rawN <major> <minor>
  raw /dev/raw/rawN /dev/<blockdev>
  raw -q /dev/raw/rawN
  raw -qa

What does "dd if=/dev/raw/raw2 of=/tmp/o_raw2 bs=512 count=8" result in?

Anyway, it looks broken for me too.
I tried using raw on 32-bit 2.4.20-pa28:

	raw /dev/raw/raw1 /dev/sda
	raw -qa
/dev/raw/raw1:  bound to major 8, minor 0
	dd if=/dev/raw/raw1 of=/tmp/raw1.o count=8
	/usr/bin/od -Ax -t x /tmp/raw1.o 
000000 00000000 00000000 00000000 00000000
*
001000


/dev/sda is the boot disk for this machine.

root@debian:/dev# /usr/bin/od -Ax -t x /dev/sda | less
000000 00000000 00000000 00000000 00000000
*
000400 40030800 60653403 00000000 0a086200
000410 cd700200 00000000 02000000 02000000
000420 00800000 00800000 40010000 371e6a3f
000430 371e6a3f 10001800 53ef0100 01000000
....


grant