Installation guide

3 Drivers and Descriptors OS-9 V2.4 on EUROCOM-17

20 Software Manual

The following descriptors are available:

SCFL floppy descriptors are also available for drive1.

pc0l.scfl_360k enables double stepping on SCFL, so only a 80 track

floppy drive can be used.

Use the partdgen utility to create a descriptor for partitioned harddisks

(see chapter 1-12 in PCF documentation).

4. Now you may use /pc0l for low density and /pc0h for high density

disks.

You may create the PCF descriptors by using the rdfdesc.a file in

/dd/IO/RBF.

$ chd /dd/io/rbf

$ make pcf

Restrictions:

• The DCH disk cache can not be used on /pcxx devices.

• ELTEC’s back utility works correctly for /pcxx as destination and file

names restricted to eight characters plus three for extension.

Name Format

pc0l.scfl_360k 40 tracks, 9 sectors, 5.25"

pc0l.scfl_720k 80 tracks, 9 sectors, 3.5"

pc0h.scfl_12mb 80 tracks,15 sectors, 5.25"

pc0h.scfl_144mb 80 tracks,18 sectors, 3.5"

pc0l.teac_720k 80 tracks, 9 sectors, 3.5"

pc0h.teac_144mb 80 tracks, 18 sectors, 3.5"

pchd.scsi512 Harddisk, SCSI ID 4, 512B/sector