Re: dd-ing images?

[Andreas Trottmann <andreas.trottmann@werft22.com>]

On Sun, Jul 30, 2000 at 08:39:38PM +0200, Kerstin Hoef-Emden wrote:

> What confuses me, is a
> changing value for deviation. Sometimes it says deviation=-1120,
> sometimes it says deviation=-1040.
> floppymeter gave the following values:
> capacity deviation= -1015 (again something different!)

I'm not an expert on these floppy-controller related things, but I guess
that some deviation of the deviation ;) is OK, since this is a value
obtained by measuring mechanical properties, which is always a bit of a
fluctuating matter.

> Are these values within normal?

Yes.

> Is it a problem that the capacity deviation changes? 

No.

> Which value to choose for /etc/driveprm?

Just take a value near the ones you got (-1120 seems OK).

> Since several attempts with rescue.bin always have been successful and
> several attempts with root.bin, driver-1.bin or driver-2.bin always
> failed, I cannot help but thinking, that the *.bin files are not O.K.

The files are OK. The only "problem", is that the .bin files (and thus
the floppies) don't contain filesystem images. You are just not supposed
to mount them! :-)

If I remember correctly, root.bin is a gzipped filesystem image (once
you've booted the kernel from the rescue floppy, the kernel reads the
whole content of the floppy in a ramdisk, ungzips is, and mounts *this*
as the rootfilesystem), and the driver-*.bin floppies contain a gzipped
tar file that has been split into multiple floppy-sized parts.

I guess your floppies are fine. Just start the installation.

-- 
Andreas Trottmann <andreas.trottmann@werft22.com>