I'm reviving a necro-thread because this needs coverage again - specifically because we are now in a situation where the DS1287 modules have been modified for an external battery or replaced with a third-party equivalent:
I have exactly the same problem with a 55SX. Only in my case
I was trying to install OS/2 on it. The install progressed tto the
first reboot and then couldn't boot off the drive. What's weird
is that it manages to copy all the files to the drive during the installation, so it does see the drive, it just won't boot from it.
Aron suggested the following, but I haven't had a chance to try
it yet. I have to look for a DOS floppy to boot from. If you try
this and it works please post it here.
"I did some searching on the 55sx problem after replacing the
Dallas RTC chip, and found one suggestion that says you need
to clear the CMOS before the configuration will take.
The method is to boot from a floopy, run DEBUG, and type
o 70 13
o 71 00
q
Then run the reference diskette and autoconfigure again."
This "solution" seemed to propagate after someone said they swapped in a still-sealed Dallas module from a clone to get their 55SX working again (so, of course, the CMOS contents are wrong for the system) - it's also replicated on the 55SX page. I would
like to work towards modernizing how this is stated - just pull the battery to clear the CMOS on the system.
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