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CHAPTER 10 Special Files

10.5 Ultrix and Digital UNIX

The physical devices are located in /dev, in a BSD style, and the MAKEDEV program is used to install the special files. For Digital UNIX there are also a few SysV.4 style sub-directories for sad and streams. SCSI disks are designated as rz and rrz for the block and character devices, respectively, with, for Digital UNIX:

0 brw------- 1 root system 8, 0 May 7 1995 rz0a
0 brw------- 1 root system 8, 1 May 7 1995 rz0b
0 brw------- 1 root system 8, 2 May 7 1995 rz0c
0 brw------- 1 root system 8, 3 May 7 1995 rz0d
0 brw------- 1 root system 8, 4 May 7 1995 rz0e
0 brw------- 1 root system 8, 5 May 7 1995 rz0f
0 brw------- 1 root system 8, 6 May 7 1995 rz0g
0 brw------- 1 root system 8, 7 May 7 1995 rz0h
0 crw------- 1 root system 8, 0 May 7 1995 rrz0a
0 crw------- 1 root system 8, 1 May 7 1995 rrz0b
0 crw------- 1 root system 8, 2 May 7 1995 rrz0c
0 crw------- 1 root system 8, 3 May 7 1995 rrz0d
0 crw------- 1 root system 8, 4 May 7 1995 rrz0e
0 crw------- 1 root system 8, 5 May 7 1995 rrz0f
0 crw------- 1 root system 8, 6 May 7 1995 rrz0g

For Ultrix the major and minor numbers are different for block and character devices.

Unix System Administration - 8 AUG 1996
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