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System Management Concepts: Operating System and Devices

Terminals for BSD 4.3 System Managers

Traditionally, 4.3 BSD system managers enable or disable terminal ports by modifying the /etc/ttys file and sending a HUP signal to the init program.

This operating system stores terminal port information in the ODM and starts terminals when the init program reads the /etc/inittab file. In this operating system, use the Web-based System Manager Devices application or SMIT to configure terminal ports.

There is no fixed mapping between the port and the device special file name in the /dev directory. Consequently, it is confusing to system managers who are new to this operating system which port is to be configured. When using SMIT, the first planar serial port (physically labeled s1) is referred to as location 00-00-S1, adapter sa0, and port s1 in the SMIT menus. The second planar serial port (physically labeled s2) is referred to as location 00-00-S2, adapter sa1, and port s2.

Use the penable and pdisable commands to enable and disable a port.

termcap and terminfo

Like System V, this operating system uses terminfo entries in /usr/lib/terminfo/?/* files. Users with 4.3 BSD Systems might find the following commands helpful:

captoinfo (1) Converts a termcap file to a terminfo file
tic(1) Translates the terminfo files from source to compiled format.

This operating system includes source for many terminfo entries. Some of these might need to be compiled with the tic command. The termcap file is provided in /lib/libtermcap/termcap.src file.

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