[EMAIL PROTECTED] wrote:
> When i use linux command dd, i meet below problem:
>
> when i type:     dd if=/tmp/test.gz of=/dev/fd0 bs=1k   it's working!
> but when type:   dd if=/tmp/test.gz of=/dev/fd0 bs=1k seek=400
>     it return:   dd: /dev/fd0: Invalid argument

Hard to tell what's wrong when you don't mention the version of dd
you're using or even the type/version of your OS.

The above works fine for me with dd from fileutils-4.1 on both
linux-2.2.18 and linux-2.4.9.

If it still fails when using the latest version of dd,
then run the command like this

  strace -o syscall-trace dd if=/tmp/test.gz of=/dev/fd0 bs=1k seek=400

and send me the `syscall-trace' file it creates.

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