I eject the CD-RW, inser it again and try to mount it:
root@darkstar:~# mount /home/samiel/debian-11.1.0-amd64-netinst.iso
/media/cdrom
mount: /media/cdrom0: WARNING: source write-protected, mounted read-only.
So the drive itself is still operational after the mishap.
Yes, but only as root, not as a simple user
In Nemo -- Devices now I see twice the CD-RW, the old one (not inspectable)
and the new one (inspectable).
Looks like the drive was re-connected by the kernel without completely
dropping the old connection. Possibly udev adjusted the symbolic link
/dev/cdrom to the newer device file (/dev/sr1 ?).
The only plausible theory which i have is that Brasero now hits a new
problem in the kernel (5.14 ?) which may or may not involve the drive's
firmware but does not show up with older kernels. (I have a kernel 5.10
which works well with 3 drives.)
I installed on testing (kernel 5.14...) the kernel 5.10 from stable
(backports), but I received the same error
Thank you for your job!:)