Re: dd.raw: /dev/raw/raw1: Invalid argument

[Scott Lurndal <slurn@xxxxxxxxxxx>]

> 
> Hi,
> 
> I'm having trouble getting rawio to work on
> 
> Red Hat Linux release 6.2 (Zoot) Kernel 2.2.13-okeefe on a 2-processor i686
> 
> Does anyone have any idea what I'm doing wrong based on the following:
> 
> Filesystem           1k-blocks      Used Available Use% Mounted on
> /dev/sdb1              8741468        28   8297388   0% /wtecache1
> /dev/sdc1              8741468        20   8297396   0% /wtecache2
> 
> [mad@shaggy ~mad/tmp]$ ls -l /dev/sdb1 /dev/sdc1
> brw-rw----    1 root     mail       8,  17 May  5  1998 /dev/sdb1
> brw-rw----    1 root     mail       8,  33 May  5  1998 /dev/sdc1
> 
> [mad@shaggy mad]$ raw /dev/raw/raw1 /dev/sdb1
> /dev/raw/raw1:  bound to major 8, minor 17
> 
> [mad@shaggy mad]$ raw /dev/raw/raw2 /dev/sdc1 
> /dev/raw/raw2:  bound to major 8, minor 33
> 
> [mad@shaggy ~mad/tmp]$ raw -qa
> /dev/raw/raw1:  bound to major 8, minor 17
> /dev/raw/raw2:  bound to major 8, minor 33
> 
> [mad@shaggy ~mad/tmp]$ ./dd.raw if=/dev/raw/raw1 of=/dev/raw/raw2 bs=512
> ../dd.raw: /dev/raw/raw1: Invalid argument
> 0+0 records in
> 0+0 records out
> 
> Thanks,
> Mary Ann
> 

try:

$ strace -o /tmp/strace.out ./dd.raw if ...

and see what system call is failing with einval. 

scott