On Tue, Nov 17, 2020 at 11:04:07AM -0500, Laine Stump wrote: > On 11/17/20 7:56 AM, Daniel P. Berrangé wrote: > > The udevProcessStorage method relies on udevGetIntProperty ignoring > > errors about non-existant properties and instead setting the value to > > zero. In theory when seeing ID_CDROM=1, you might expect that devices > > which are not CDs will get ID_CDROM=0, but that's not what happens in > > practice. Instead the property simply won't get set at all. > > > Taking you at your word that, e.g. ID_CDROM will *always* be unset, and > never set to 0 when the device isn't a CD, ID_CDROM=1 is set when the '/lib/udev/cdrom_id' program determins that the device is a CDROM. There's no trace of anything evers etting ID_CDROM=0 in the standard source. I guess in theory someone could write a udev rule to force ID_CROM=0 instead of deleting the property, but that's kind of silly. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
