Solaris probes the serial ports during boot, and during this process, it toggles some handshaking lines used by dumb UPSes. As a result, particularly for simple signalling "dumb" UPSes it seems to kick it into a mode that makes the UPS think it's either in a calibration run, or some self-test mode. Since at this point we are really not communicating with the UPS, it's pretty hard to tell what happened. But it's easy to prevent this, and you should. Disconnect the UPS, and boot the system. When you get to a login prompt, log in as root. Type the following command:
Easy-peasy! I'd never touched a EQ mount of any kind, and had it up and running in just a couple hours. I took my time assembling it, and looking it over, aligned the polar scope on a distant radio tower, in the daylight, and hauled it outside for a test drive. It worked amazingly well the first night, and continues to improve as my skill increases. One thing to add, that really helped me, is a piece of acetate sheet cut to fit between the mount head and tripod. I can leave the center bolt tight, and still have a nice, smooth AZ adjustment for polar alignment. (Thanks, Serge, for that one!) I am very happy I got the Pro version.