Hope this is the right n/g for this question...

The fault light on the front panel keeps blinking. We've found that
Sun's got a package called LOMlight, which we've installed. Which
won't run: pkgadd reported it properly installed, but when we try to
run lum (there doesn't seem to be the lumctl that is mentioned in some
manuals online), it complains that there's no /dev/lum.

Clues for the poor?

mark