Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 296 — #322

13.1 Updating, Upgrading, and

Migrating the Print System

In the previous version, SuSE Linux Enterprise Server 8, the two print sys-

tems, LPRng and lpdﬁlter and CUPS, were supplied as equal alternatives.

In SUSE LINUX Enterprise Server 9, the focus shifts towards CUPS. Ad-

ditionally, an LPRng conﬁguration can no longer be converted to a CUPS

conﬁguration automatically. For this reason, before updating from SuSE

Linux Enterprise Server 8 to SUSE LINUX Enterprise Server 9, decide

whether a migration from LPRng and lpdﬁlter to CUPS should be per-

formed under SuSE Linux Enterprise Server 8.

CUPS is the print system of the future. Even if the lprng and lpdfilter

packages continue to be supplied, the changeover to CUPS is recom-

mended in SUSE LINUX Enterprise Server 9 because of the following ad-

vantages:

individual setting of the print parameters on user level

optimum support for PostScript printers

“browsing” in the network

web front-end (on user level and in relation to administration)

After SUSE LINUX Enterprise Server 9, the conﬁguration of LPRng and

lpdﬁlter will no longer be supported by YaST, but must be performed man-

ually. For this reason, a check should be made under SUSE LINUX Enter-

prise Server 9 to see whether CUPS meets requirements and whether a

changeover is possible.

13.1.1 Updating CUPS

When updating CUPS, a distinction should be made between the following

cases:

Updating CUPS The software packages are updated, but the existing con-

ﬁguration ﬁles are accepted without change. After the update, the

queues and cupsd continue to behave as before. This also means that

many new features in SUSE LINUX Enterprise Server 9 are not used

and must be conﬁgured later if necessary.

296 13.1. Updating, Upgrading, and Migrating the Print System