Public bug reported:
% lsb_release -rd
Description: Ubuntu 18.04.2 LTS
Release: 18.04
% apt-cache policy dvd+rw-tools
dvd+rw-tools:
Installed: 7.1-12
Candidate: 7.1-12
Version table:
*** 7.1-12 500
500 http://gb.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
100 /var/lib/dpkg/status
%
The man page says:
To use growisofs to write a pre-mastered ISO-image to a DVD:
growisofs -dvd-compat -Z /dev/dvd=image.iso
So having downloaded the iso image I wanted, I ran:
growisofs -speed=1 -dvd-compat -Z /dev/sr0=ubuntu-16.04.6-desktop-amd64.iso
expecting this to create a bootable Xenial installation DVD.
Instead it created a DVD which was not bootable; mounting it showed a single
file "ubuntu_1.iso" clearly an 8.3-truncated version of the input filename.
Along the way it showed what it was doing:
genisoimage ubuntu-16.04.6-desktop-amd64.iso | builtin_dd of=/dev/sr0 obs=32k
seek=0
.. so it looks like genisoimage is always getting called, and is creating a new
iso image with the supplied iso as a simple file inside it.
As a workaround, I found that replacing genisoimage with a symlink to
/bin/cat allowed me to use the same growisofs invocation to create the
bootable DVD I wanted.
** Affects: dvd+rw-tools (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1832922
Title:
cannot use growisofs to write iso image
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