(Apologies for pestering this list with another newbie question.) So I have this external DVD-RW drive (Asus SDRW-08U7M-U to be specific). On my Debian stretch laptop, plugging in the USB drive creates /dev/sr0 as well as several symlinks to it, e.g. /dev/cdrw, /dev/dvd etc.
Plugging the drive into my Qubes desktop, I get notified of the availability of this drive and can attach /dev/sr0 to a Debian buster AppVM qube as /dev/xvdi. I can mount /dev/xvdi and read data from a CD allright. However, in contrast to my Debian laptop, brasero does not recognize the drive as a writer, not even when I create the same /dev/cdrw symlink. In addition to that, both commands dvd+rw-mediainfo /dev/xvdi cd-info -C /dev/xvdi exit with an error (details below). Thus it seems that some crucial bit did not get forwarded to/is not installed in the AppVM. Probably I'm just lacking the knowledge how different writing to a CD is from reading from CD, on the hardware level. Is there more to burning a CD than a single block special device? Any hints welcome. Olaf # dvd+rw-mediainfo /dev/xvdi :-( unable to INQUIRY: Invalid argument # cd-info -C /dev/xvdi cd-info version 2.0.0 x86_64-pc-linux-gnu Copyright (c) 2003-2005, 2007-2008, 2011-2015, 2017 R. Bernstein This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. CD location : /dev/xvdi CD driver name: GNU/Linux access mode: IOCTL Error in getting drive hardware properties Error in getting drive reading properties Error in getting drive writing properties __________________________________ Disc mode is listed as: Error in getting information ++ WARN: error in ioctl CDROMREADTOCHDR: Invalid argument -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/707446f665bd912823c2bdf29254087c019c40e0.camel%40aatal-apotheke.de.
