Installation, configuration, and packaging

Drivers should adhere to the following practices for installation, configuraion, and packaging:

• Drivers for SVR5 should use installation scripts written to use pkgadd.

• Drivers written for SCO OpenServer 5 Release 5 and SCO OpenServer Release 5.0.4 should use installation scripts written to use CDMT. Drivers written for SCO OpenServer Release 5.0.5 can use CDMT or pkgadd.

• Installation scripts should print messages to the screen only on failure. Any information written to stdout or stderr halts the software installation with the Press <Return> message.

  • When installing a SVR5 or SCO OpenServer 5 driver under the IQM (Installation Query Manager), you can send all output to a shell function that checks to see if the LOGFILE environmental variable is defined. If LOGFILE is defined, all informational messages that need to be logged can sent to that file. To check whether the script is running under IQM, check the value of the IQM_FILE environmental variable; if it is set to a non-zero value, the script is running under IQM.

• Autoconfigurable DDI drivers must use the major numbers that are assigned by idinstall from the information provided in the driver's Master(DSP/4dsp) file. Drivers must not modify their major numbers, resulting device numbers, or any other portion of the resource manager database entry after they are installed.