Re: Ahah, 4096 blocksize disk is not recognised under Linux?

[Geert U. <ge...@li...>]

On 8 Jan 2003, Kulwant Bhogal wrote:
> > If it's the RDSK partition code, we can probably fix it by looking at
> > your RDB. You can extract the RDB by dumping the first 2 cylinders to a
> > file: 
> >   dd if=/dev/sdb of=rdb.dump bs=4k count=xxx
> 
> > Set `xxx' such that `xxx*4096' equals the number of bytes in the first 2
> > cylinders of the disk (use HdToolBox to find out the cylinder size).
> > Then sent us the output of `hexdump rdb.dump'.
> 
> OK, because I got a count of 615 blocks per cylinder, I used 
> 615*2*4096=5,038,080 as the count. So the commandline I used was:
> 
> # dd if=/dev/sdb of=rdb.dump bs=4k count=5038080
> 
> After a few moments I got back: 
> 
> dd: /dev/sdb: Input/output error
> 
> ho hum.

Looks like the driver itself has problems.

> The other question I have is, how do I then copy the rdb.dump file to the
> Amiga side for mailing? I tried to mount another Amiga partition (sda2) as

mount -t affs /dev/<amiga_partition> /mnt

> target/amigaside and tried to copy the rdb.dump file (which I could see if I
> did an ls) by using cp rdb.dump target/amigaside, but I do not see the file
> when I get back to AmigaOS. 

I hope you didn't format that target partition?

> I also do not know how big this file is (it may be 0 bytes). What is the way
> to get a file listing with sizes? 

ls -l

(`man ls' or `ls -- help')

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@li...

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds