Re: mkisofs, cdrecord, 74min vs 80min CDROM media
On Fri, 2 Feb 2001, Allison, Jason A. wrote:
> Poblems we are seeing:
> Old problem:
> We has an 86 Meg tar file. The tar file
> was being corrupted and I would get I/O errors when I did a tar tvf.
>
> Middle problems:
> Same tar problem as above.
> The directory logicaly after the tar file
> is all messed up. Binary data in bourne shell scripts. Real weird. If I did
> a strings
> load.sh, it wouldnt even show anything,
> all binary data.
>
> Current problems:
> tar problem has seemed to go away.
> diretory after that, the files seem ok,
> but uerf -R is reporting CAM SCSI errors while I do a file * on the
> directory, and it
> takes forever to complete.
>
> Anyone who can give some insight into this
> topic and/or has used these utilities before, I would greatly appreciate it.
>
> Possibilites:
> CD-RW going bad.
Likely. CD-RW drives are "supposed" to burn only some 1000 CDs. If you burn
much, the drive wears off before the 1-year warranty expires and you'll get a
free replacement ;-)
> mkisofs having problems with such a large
> file. I am going to test expanding that tar file out and recording then.
> Though 2
> files logically before it are 56 and 62
> Meg respectively.
Unlikely. On Linux you can "mount -o loop file.iso /mnt" to check the .iso
before burning.
Also check the kernel error messages (supposing DigitalUX has those); if
there are errors reported by the SCSI driver then you have a hardware problem
(either the CD or the drive).
Regards,
Anne Bezemer
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