dnichols@ceilidh.beartrack.com (DoN Nichols) (03/05/91)
In article <37061@fmsrl7.UUCP> pms415!reso@fmsrl7.srl.ford.com (Dennis M. Reso) writes: >[AT&T Unix PC, 2MBx58MB (Micropolis), 3.51 kernel] > >While fumbling with a phone connection on the back of my >unixpc I inadvertently hit that pesky reset button (nice >ergonomics, there, eh?) Unfortunately, this stopped the Some machines have a metal tab bent up beside the button, so that it is a major effort to hit it, even intentionally. >machine dead and it didn't boot. Pressed and held it before >releasing and nothing. Power cycled it and nothing. The [ ... ] >The Diagnostic Disk says "drive not formatted" when parking >the heads; Hard Disk Boot floppy gives the same panic message. I'm afraid that the system was updating the superblock when you hit the button, and that stopped the read/write logic cold. The result is that the entire track is wiped of data. If so, the mimimum you will have to do is reformat it. (It would be nice to have a diagnostic-level command to re-format a single track, and to have alternate superblocks around the system, like the BSD ffs has.) I hope I'm wrong, and that someone else can post hints which will put you back in operation painlessly, but I fear otherwise. You might even hit the problem I had with one disk. I couldn't format it, because it failed recal. It failed recal because the heads couldn't verify they had reached track 0 after a seek till the track00 line came true. No recal -> no format. No format -> no recal. Catch-22! I may have to bring back to life one of my old 6809 systems, to force a re-format of track 00. >Any help would be greatly appreciated, even if it is >definitive bad news, I guess. Sorry I can't give more hope. I wish you luck. DoN. -- Donald Nichols (DoN.) | Voice (Days): (703) 664-1585 D&D Data | Voice (Eves): (703) 938-4564 Disclaimer: from here - None | Email: <dnichols@ceilidh.beartrack.com> --- Black Holes are where God is dividing by zero ---