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From: anubis <anubis357@optusnet.com.au>
To: "Chris" <bsdnewbie@coolarrow.com>, freebsd-questions@freebsd.org
Date: Fri, 19 Mar 2004 20:18:24 +1000
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Subject: Re: cdrom mount problem
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On Fri, 19 Mar 2004 1:35 am, Chris wrote:
> *This message was transferred with a trial version of
> CommuniGate(tm) Pro*
>
>
>
>
> In summary: the only way to mount my cdrom after burning an ISO is
> to reboot first.
>
>
> Prior to 5.2.1-RC1, I was able to burn ISO imaged onto a CDRW using
> burncd, then later mount /cdrom to access the files I burned. With
> RC1 and now with 5.2.1-RELEASE, a strange thing happens:
>
> After a reboot, I can mount /cdrom and access files on the disc.
> But if I re-burn the ISO file, then try to mount /cdrom, I get
> this:
>
> cd9660: /dev/acd0: Input/output error
>
> BUT... if I reboot THEN try to access that same disk, it works
> fine.

I had a problem with burncd where I couldnt access the disk after 
burning.  I couldnt eject or mount it.  It required a reboot to get 
it.  I couldnt solve it but I was able to work around it by using 
cdcontrol.  See the man page for all options but breifly you can 
eject and then close the disk by
cdcontrol -f /dev/acd0 eject
cdcontrol -f /dev/acd0 close
I cant remember exactly what I did but I am sure I just ejected by 
software then put back in and it worked fine.  It was as if somehow 
something was holding onto the disk.  I thought it was maybe my 
windows partition getting lonely.