Re: trixie: cdrecord can no longer write to CD
On 2025-11-15, Thomas Schmitt <scdbackup@gmx.net> wrote:
> Hi,
>
> D. R. Evans wrote:
>> Since this issue is sort-of-fixed, I need to work on things that are still
>> broken; but I'll respond to you when things are in a happier state and I
>> have time to get back to this.
>
> I expect that we will not learn much more than that a 7 year old
> workaround for Ubuntu is suddenly needed with Debian on your machine.
> Actually the setuid solution is much older than that. Twenty years
> ago it was the usual way to make CD burning possible for normal users.
>From the wodim man page:
In any case, the user running wodim needs read and write access to the
particular device file on a Linux system. It is recommended to be root or
install the application as suid-root, because certain versions of Linux
(kernel) limit the set of SCSI commands allowed for non-root users. Even if
usage without root identity is possible in many cases, some device drivers
still may fail, show unexplainable problems and generally the problems become
harder to debug. The risk for buffer-underruns is also increased. See the
PROCESS SCHEDULING PRIORITY section below for more details.
In light of this, it seems possible the newer kernel in Trixie is less lenient
than older versions when running wodim as an unprivileged user.
> The impact of the problem seems somewhat unpredictable.
> See the last comment on the page where you found the workaround:
> "What's bizarre is that in my case the issue only happens with my
> USB Iomega CD-RW drive. Doesn't happen with my other drives.
> Fixes the issue though."
>
>
> Have a nice day :)
>
> Thomas
>
>
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