On Mon, 7 Feb 2022, King Beowulf wrote:

1. as started, you do NOT mount the optical drive to burn. It is not a
mass storage device in this case.

Ed,

I've never mounted the optical drive; I've used xcdroast but now it has
library issues and won't work. When k3b told me the optical drive is read
only I thought it was because the cdrom entry in /etc/fstab set it ro.

2. you MUST use burner s/w since the optical drive needs to be put into
burn mode - laser from "read" to "write" power etc.
3. If you log in as 'root' you can simply

Neither xcdroast nor k3b finds the drive writable when invoked by root,
either.

# growisofs -dvd-compat -Z /dev/dvd=image.iso
see manpage fro more options to fine tune.

Now I have a bootable USB thumb drive the DVD can wati.

Rich

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