[ag-automation] RBF filesystem

[Steven Hirsch]

On Sun, 19 Oct 2008, Steven Hirsch wrote:

> I have just built and installed the RBF filesystem module.  The system is
> running Ubuntu 8.04 in 32-bit mode and the kernel version is 2.6.24.  The
> build went fine and the module loads without complaint.
>
> I am not having much success in trying to mount images of Tandy CoCo 6809
> OS-9 diskettes, however.  I tried:
>
> $ mount -t rbf -o loop,sector=256,verbose /tmp/disk.dsk /mnt
>
> It comes back with this on the console:
>
> mount: wrong fs type, bad option, bad superblock on /dev/loop0,
>        missing codepage or helper program, or other error
>        In some cases useful info is found in syslog - try
>        dmesg | tail  or so
>
> and in the kernel log:
>
> Oct 19 14:25:52 u32 kernel: [368834.785845] No RBF filesystem on loop0 \
>    (magic=00000000)
>
> Yet, this image is valid.  If I dd it to a diskette I can read it on the
> target hardware.  Also, third party tools such as 'toolshed' handle it
> perfectly (read directory, copy files in and out, etc.)

I always feel embarrassed when I discover the answer within 5 minutes of 
posting a call for help :-).  It needs the 'nomagic' flag.  Didn't even 
know about the rbf.txt file until I tripped over it in the sources for the 
older version of rbf.  Of course, then it was obvious where to look for it 
under Documentation.

The error message still seems odd, since the magic number (start of the 
image?) is definitely not zero.

Anyway, very nice work!  This will save me considerable hassle in batting 
things back and forth between the Linux box and the CoCo 3.

Steve


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