Can't mount a mixed mode CD from acd

Craig Rodrigues rodrigc at
Wed Sep 21 20:25:14 PDT 2005

On Thu, Sep 22, 2005 at 11:56:55AM +0930, Daniel O'Connor wrote:
> >Can you try this patch?
> Not at the moment, hopefully soon :)
> Although I'm not sure how it would work because the sector size *really 
> is* 2048 bytes for the second session. Unfortunately it is 2352 bytes 
> for the first session and this duality may be confusing Geom (if it's 
> even supposed to be able to handle dual sector sizes)

The patch should eliminate the panic that you saw,
and you should get an EINVAL.  If you try mounting /dev/acd0t33 (or
whatever) as recommended by Robert Backhaus, then that should just
work for mounting your data track.  I don't have a multisession
CD to try with, so feedback would be helpful.

Craig Rodrigues        
rodrigc at

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