Warning: Unrecognized control line

After checking my logfile, I see

"Warning: Unrecognized control line."

What does this mean? And, is it going to cause problems in the future?

An unrecognized control line means that your LPR is sending over codes which are "enhancements" to the System V printing system. The System V printing facility supposedly expands the functionality of the BSD spooling facility, however, these enhancements have not been documented.

RPM handles these "enhancements" for the most part by ignoring the option. For example, if you have told your printer to use a form, it will not be used. RPM does not know how to do forms, so this option will be ignored. You should be able to eliminate these "unrecognized control lines" by editing the printcap file on your host system.

Note: RPM attempts to implement some of the "extensions" where we can identify their purpose, and actually do a credible job for the customer.

The answer to the second question, "will it cause problems," is "no". RPM may not do what you originally intended but usually there is a way to get the results you want. Please contact our tech support or tech sales for assistance.

An unrecognized control line means that your LPR is sending over codes which are "enhancements" to the System V printing system. The System V printing facility supposedly expands the functionality of the BSD spooling facility, however, these enhancements have not been documented.

RPM handles these "enhancements" for the most part by ignoring the option. For example, if you have told your printer to use a form, it will not be used. RPM does not know how to do forms, so this option will be ignored. You should be able to eliminate these "unrecognized control lines" by editing the printcap file on your host system.

Note: RPM attempts to implement some of the "extensions" where we can identify their purpose, and actually do a credible job for the customer.

The answer to the second question, "will it cause problems," is "no". RPM may not do what you originally intended but usually there is a way to get the results you want. Please contact our tech support or tech sales for assistance.

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