Unwanted OSS sound card driver --solved?

A posting of a similar problem to debian-user list cited a utilitiy "discover" 
and its .conf file. I have this file--does the normal knoppix 2.78 on bootup 
do this? I would like to skip sound because I do not have a correctly 
supported audio card at present. The following entries are in the file:

# Scan for the following types of hardware at boot time:
#boot bridge cdrom disk ethernet ide scsi sound usb video
boot all

If I do not do "boot all", are the entries above it inclusive so I am safe in 
simply deleting "sound"?

(I have the OSS usb-midi blocked in the  /etc/hotplug/blacklist file entry so 
alsa's driver can service this. Another MIDI sound-generator card has no 
footprint and I explicitely assigned the alsa mpu401 to its port address to 
service it.)