burncd makes disk that is unmountable

youshi10 at u.washington.edu youshi10 at u.washington.edu
Fri Mar 16 20:04:17 UTC 2007

On Fri, 16 Mar 2007, Dieter wrote:

>>> 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?


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