[cdrom device stays busy]
Okay, I found one solution myself: just wait ;-) 
Indeed, /dev/cd0a was back today (but I don't know why). 

And I can rerproduce the "busyness" now (with NetBSD 2.0 on my PC and on
a Laptop): it happens if I try to mount a corrupt multisession CD-R:

	# mount -t cd9660 /dev/cd0a /mnt
	mount_cd9660: /dev/cd0a on /mnt: Invalid argument


From now on /dev/cd0a stays busy again, even with proper CDs. But howto
get the device back immediately? Or is this a bug and I should fill a
PR?


Regards, Mark Weinem