Hello Uwe, > That is surprising. I would have expected that the only effect of that > blacklist entry is that the module is not loaded. I don't understand > how that entry makes a difference if it doesn't prevent the module > being loaded. > > You can try > > update-initramfs -u -k all > > maybe then the module isn't loaded any more on the next boot. I'm sorry, it is. > The sr module might be enough to handle a DVD-RAM. Ok, then lets try it the hard way: rename /usr/lib/modules/6.1.0-37-amd64/kernel/drivers/block/pktcdvd.ko and reboot. -> dmesg reports Jun 28 10:38:06 nb06 (udev-worker)[2081]: sr0: Process '/usr/sbin/pktsetup -i 11:0' failed with exit code 1. -> lsmod reports pktcdvd not loaded -> And most important: DVD-RAM fully operational > Puzzled! And now? ;-) Best regards, Roland