[rescue] Need help with PortMaster PM2 recovery
jonathansturges at yahoo.com
Sat Sep 6 09:47:41 CDT 2008
> > > It does BOOTP fine, and I have it netbooted now. It's had several weeks
> > > of uptime with the netboot image. I just would rather get ComOS loaded
> > > so I could do a flash boot as well. It is indeed a PM2 and normally
> > > boots from flash (except for in my case!).
> > Is there a way to blank out the flash?
> > Does it program it all the way, then say there is an error? Perhaps the
> > flash has errors and it's failing a checksum?
> > When in doubt, I'm sure you could find another pm2
> There is a way to clear the flash, per the CLI manual, but I guess it's not
> working. With the system messages lost, it's really hard to know when something
> like that succeeds or fails.
> The upgrades never seem to really get very far, so I doubt they're programming
> the flash. I'll probably just wait for another PM2 or something equivalent;
> this one was only US$10. It did work when I got it, I just made the mistake of
> trying to bring it up to date.
I recovered my PM2!
I'm replying to my own thread in order to get this into the archives and possibly help someone else.
The problem was, essentially, that I was using too old of a ComOS netboot image. I had initially grabbed version 3.3.2 and missed version 3.5 because it didn't have a version number in the filename. Once I netbooted the PM2 with ComOS 3.5, the recovery I was attempting works fine: 1) completely erase the flash memory, then 2) use TFTP to load a good ComOS image into flash. This process is documented in the Chapter 2 of the PM2 Troubleshooting guide on portmasters.com. I was able to load version 3.7.2c4 into flash this way with no trouble. Whenever I next dig up four 1MB 30-pin SIMMs, I can upgrade the PM2's RAM and subsequently upgrade ComOS to 3.9.
ComOS 3.3.2 seems to be useless. It was not able to properly TFTP a ComOS image from any TFTP server, including Livingston's own netboot package.
More information about the rescue