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List:       opensolaris-bugs
Subject:    Re: [osol-bugs] cannot mount CDs
From:       Joerg.Schilling () fokus ! fraunhofer ! de (Joerg Schilling)
Date:       2008-11-30 18:50:01
Message-ID: 4932e059.Ry43jYytd/hcXc84%Joerg.Schilling () fokus ! fraunhofer ! de
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"Apostolos Syropoulos" <ijdt.editor@gmail.com> wrote:

> 2008/11/30 Joerg Schilling <Joerg.Schilling@fokus.fraunhofer.de>
>
> >
> > The new and better hsfs code has not been backported to Solaris 10.
> > ON Solaris 10, you may get a kernel panic if you try to mount a defective
> > CD.
> >
> >
> Other OSes have adopted a different more flexible approach. One can set an
> environment variable, for example ALLOW_BUGGY_JOLIET, so as to override
> system checks and allows people to read CD that are buggy. After all, I have
> mounted the buggy CD on Solaris 10 and I have experienced no kernel panics.

First a note: You cannot change the behavior of the OS kernel by setting an 
environment variable. Environment variables only live in user space.

If such a behavior is ever made configurable on Solaris, this is done by 
introducing a kernel variable that may be set by editing /etc/system before a 
reboot or by using the debugger.

Your problem is not caused by a bug on Solaris but by a bug the iso image you 
use.

Even though it turns out tat the specific bug in your iso image does not cause a
kernel panic, you need to know that the function that did the test is fully 
generic and the same deviation from the standard under different constraints 
will cause a kernel panic. Hsfs usually does not deny mounting but only 
disables a directory that carries a bug. Your problem is that the root 
directory was affected.....

Jörg

-- 
 EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
       js@cs.tu-berlin.de                (uni)  
       schilling@fokus.fraunhofer.de     (work) Blog: http://schily.blogspot.com/
 URL:  http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily
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