Subject: Re: mkisofs file size limit
To: None <>
From: Frederick Bruckman <>
List: tech-pkg
Date: 03/15/2005 01:53:33
In article <>,
	Carl Brewer <> writes:
> Frederick Bruckman wrote:
>> You could just write your dump file(s) directly to the raw partition,
>> and use "-B" to set the volume size. For backups, I think it would be
>> smart to *not* go greater than 4GB on a Single-Layer DVD, as many PCAV
>> writers do their zone change at about 4.2GB, and that's where you'll
>> find the lowest quality writing on the whole disk.
> Can you actually write with dump directly to DVD-R?  I thought
> you had to use cdrecord or somesuch?

I suppose not. You could write a file directly to the raw partition using
"growisofs". E.g. "growisofs -Z /dev/rcd0d=dumpfile".  To use that with
"dump -B" would required some clever scripting.