With Linux Software Moving To Desktops, Rivalry Takes Shape; Red Hat And Novell Lead Pack; Both companies benefiting as Linux operating system runs on more business PCs.(INTERNET & TECHNOLOGY)

Byline: KEN SPENCER BROWN

A new operating system war is brewing on desktop PCs, and it's not Windows vs. Mac, or even Windows vs. Linux.

This time, it's Linux vs. Linux.

Red Hat and Novell -- already foes in the market for Linux server software -- are taking their fight to the personal computer. The Linux firms hope to sell businesses a single, companywide software platform for both servers and desktops.

The stepped-up Linux rivalry is another sign that the once-renegade operating system is becoming a mainstream alternative to Microsoft Windows. It also marks a new battleground as Linux jumps from servers to PCs used by non-techies. …