burncd makes disk that is unmountable

Dieter freebsd at sopwith.solgatos.com
Sat Mar 17 05:31:02 UTC 2007


> > > > AMD64 running 6.0
> > > > Drive is:
> > > >   acd0: DVDR <HL-DT-ST DVDRAM GSA-4160B/A301> at ata0-master UDMA66
> > > > Media is CD-RW
> > > > 
> > > > Burned a 6.2 disk using:
> > > >   burncd data 6.2-RELEASE-amd64-disc1.iso fixate
> > > > as suggested in
> > > >   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html
> > > 
> > > I don't remember the details, but when I got to 6.1, I found that
> > > my old burncd parameters would not work and I had to change them.
> > > 
> > > I don't remember the details, but I settled upon:
> > >   /usr/sbin/burncd -v -f /dev/acd0 data FreeBSD62-disc1.iso fixate
> > > which seems to work find.  Both boots and mounts.  That doesn't look
> > > materially different from yours, but...
> > 
> > It is defaulting to the correct device.
> > 
> > > > Seemed to go okay.  Disk boots, but I cannot mount it:
> > > > 
> > > > fstab entry:
> > > >   /dev/acd0               /cdrom          cd9660  ro,noauto       0       0
> > > > 
> > > > Yields:
> > > >   g_vfs_done():acd0[READ(offset=32768, length=2048)]error = 5
> > > > 
> > > > Tried it with and without "fixate", neither will mount.
> > > > 
> > > > Other iso disks (probably burned using NetBSD) mount fine.
> > > > UFS DVD+RW disks burned under FreeBSD using growisofs mount fine.
> > > > 
> > > > Given the error message, I assume that the block/sector at 32768 isn't
> > > > getting written.
> > 
> > New data:  NetBSD mounts both disks (with and without "fixate") just fine.
> > So perhaps the problem is with FreeBSD's mount rather than burncd?
>
> Typing in mount yields what options with NetBSD?

Command is:

	 mount /cdrom

NetBSD's fstab entry:

	/dev/cd0a       /cdrom          cd9660  ro,noauto       0  0

Identical to FreeBSD's entry, except for the device name and perhaps whitespace.

I now have FreeBSD 6.2 up and limping, and it fails the same way as 6.0.
Also tried another OS, but the stupid penguin can't even find the drive.


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