ard
Member
I got the system some time ago (i think in 2005) from the US and replaced the original Maxtor XT-1140 harddisk with a Micropolis HH1050 at that point in time.
I have done this with a lot of try and error using the diagnostics for writing / restoring partitions in combination with regular backups and some magic i do not remember to transfer the config record to the “new” disk. This time i want to do it in a cleaner way. My goal is to recreate an install tape based on what i have installed. I found a tape for a 3000 (ftp://computermuseum.informatik.uni-stuttgart.de/mai/) that is incompatible but i can at least analyze the structure.
The machine came with a diagnostics tape but without an os tape. I bought an installation tape some 10 years ago from BCP Systems but was only able to read the first 10 files from that tape (belt). Hope this is enough to recreate a bootable install tape.
Now the Micropolis has new errors and no longer boots at all.
Bought a new old stock Kalok 330 from a seller in Germany, had a shorted tantal on the 12V rail but works now without any errors.
Basic Four was paranoid someone would use products not bought from them so they introduced the config record (i remember when i worked with that machine the os was not renamed from CRDS UNOS to BOSS/IX and had no such record).
The config record is somehow encrypted and will only work in a machine with the correct serial number. The serial number and some checksums are stored in the nvram and can only be written after changing a pal.
The config record contains the allowed operating system version, maximum disks/disksize, floppy yes/no, maximum memory and so on. This the one i have:
Code:
User SSN......................2000-97894
Creator SSN...................W10-30969
System name...................TN0396/S.D.SCOTT PRINTING
System type...................2000
Release level.................7.5B
Main memory size..............1280 KB
Number of hard disk drives....2
Hard disk configuration.......120MB <2>
Number of floppy drives.......0
Number of 4-way controllers...2
Number of 8-way controllers...0
Number of parallel ports......1
Number of comm ports..........1
LAN controller................NO
MCS controller................YES
MTS controller................NO
This record is stored somewhere on the disk but not within the filesystem. Without a config record the machine can boot from the boot partition but the root can not not be mounted.
So the first step would be to rescue the config record. There is an option to copy the config record from one disk to another but that does not work.
Booted diagnostics and loaded dutil:
Code:
exec>load dutil
Loading: dutil....
D U T I L Disk UTILity, Rev C3.1 10:05:33 03/24/88
DISK CONTROLLER CONFIGURATION
Cont. Address Type Logical Units Status
0 00CC0000 Single board 0, 1 Present: OK
1 -------- Unknown 2, 3 Not present
LOGICAL UNIT CONFIGURATION
UNIT STATUS TYPE
0 Ready Micropol 1050
<dutil>conf
ELAPSED TIME: 00:00:00
Config record utility menu
1 Copy unit 0 to 1
2 Copy unit 1 to 0
3 Destroy the config record
4 Display the config record
Enter selection,
(r=last menu, c/r=item 1, ?=help) >> 4
ELAPSED TIME: 00:00:00
Unit selection menu
1 Unit 0, primary unit
2 Unit 1, second unit
Enter selection,
(r=last menu, c/r=item 1, ?=help) >> 1
ADDR 00 02 04 06 08 0A 0C 0E
0030000 1340 7EAA 8012 853E C073 AA66 9994 AE62 .@~*...>@s*f...b
0030010 1B89 AB84 5AEB E8AF 20AC AEBC A295 B396 ..+.Zkh/ ,.<".3.
0030020 C6A8 0F32 A0D6 56BD D43E 1588 707A 7EF8 F(.2 VV=T>..pz~x
0030030 FA41 5BB7 E9A8 B436 BABC 0F94 4E51 12DF zA[7i(46:<..NQ._
0030040 D6A3 781E 080C 94C1 BB63 9DE9 8C1A F505 V#x....A;c.i..u.
0030050 125E 856E 9909 1487 3CF1 7350 988B 0C21 .^.n....<qsP...!
0030060 67AC 6D73 A159 B222 B0C2 3C22 1AA2 D1C2 g,ms!Y2"0B<"."QB
0030070 A3E2 26C2 3602 CA62 D682 1BC2 A502 E742 #b&B6.JbV..B%.gB
0030080 5162 81A2 3902 7CE2 05E2 A6C2 48E2 5AE2 Qb."9.|b.b&BHbZb
0030090 19E2 6562 8DE2 D982 7362 1622 9422 BA22 .beb.bY.sb.".":"
00300A0 6302 EFE2 14C2 DE22 B262 B282 87A2 3A42 c.ob.B^"2b2..":B
00300B0 8022 BA22 21A2 F382 9702 B9E2 3EE2 4542 .":"!"s...9b>bEB
00300C0 FB02 9D42 BCE2 8DA2 1922 2442 8A62 0A02 {..B<b."."$B.b..
00300D0 EB22 D562 A8E2 E522 BE02 A5A2 30E2 4322 k"Ub(be">.%"0bC"
00300E0 FB02 DEA2 B942 0B62 3D62 81A2 E182 96A2 {.^"9B.b=b."a.."
00300F0 8822 8282 D562 EDA2 A362 C862 CAA2 96E2 ."..Ubm"#bHbJ".b
>> C/R TO CONTINUE, SPACE-RET. TO STOP >>
ADDR 00 02 04 06 08 0A 0C 0E
0030100 3030 3039 3738 3934 0000 0100 1078 0000 00097894.....x..
0030110 0000 0000 0000 0000 0000 0000 0000 0500 ................
0030120 0000 0000 0280 0000 0000 0000 0200 0100 ................
0030130 07D0 0502 0001 0100 5731 3033 3039 3639 .P......W1030969
0030140 0000 0000 0000 0000 0000 0000 0000 0000 ................
0030150 544E 3033 3936 2F53 2E44 2E53 434F 5454 TN0396/S.D.SCOTT
0030160 2050 5249 4E54 494E 4700 0000 0000 0000 PRINTING.......
0030170 0000 0000 0000 0000 0000 0000 0000 0000 ................
0030180 A6E2 97E2 52E2 EDC2 5622 1BE2 1662 5482 &b.bRbmBV".b.bT.
0030190 0942 04E2 7A02 E3C2 81E2 F962 E222 A7C2 .B.bz.cB.bybb"'B
00301A0 30E2 01C2 FEA2 60E2 9502 AE02 D022 0B22 0b.B~"`b....P"."
00301B0 5AA2 D362 5BA2 7A02 0622 E102 F382 74A2 Z"Sb["z.."a.s.t"
00301C0 5AC2 44C2 B2C2 4802 8962 2202 4442 F0A2 ZBDB2BH..b".DBp"
00301D0 9742 DE02 E982 5F02 3BE2 92C2 E1C2 FC22 .B^.i._.;b.BaB|"
00301E0 2F22 1A02 3A82 4082 1F62 C382 7DA2 6602 /"..:.@..bC.}"f.
00301F0 5DA2 85E2 74E2 1B22 93E2 3E82 564C 75D0 ]".btb.".b>.VLuP
Copied that to my linux machine and convert it to a 512 byte binary file. Then i took the config tape from the MAI 3000 (first i had to write a small program to convert the .tap file to single files). There are 3 files on that tape, a header, a saveset (list of files) and the config record. Patched the saveset to rename the file to what seems to be expected by the installer (/sys/config.2000-97894) and wrote a new config record tape on linux. Hope this can be used later when doing a new install.
Formatting the new disk
Disk formatting can be done from the diags after loading dutil. The command dutil shows options to format the disk. However, only disk types sold by Basic Four can be used. When i replaced the disk the first time, i already had analyzed the structure of the diagnostic programs (s-record files with an additional header) and wrote a simple program that allows editing the table of disk types. So i added the Kalok, wrote a new diag tape on linux and was able to format the disk:
Code:
ad@e5 dutil]$ ./dutilpatch
Reading dutil.2000
Dutil Date: "10:05:33 03/24/88"
Dutil Version: " C3.1 "
-------------------------------------------------------------------------------
0: Micropolis 50 Cyl: 830 rwc: 400 wpc: 400 ?1:0xBA ?2:0xAC hds: 6 ?3:0x10
1: Maxtor 140 Meg. Cyl: 918 rwc: 919 wpc: 919 ?1:0xBA ?2:0xB0 hds:15 ?3:0x21
2: Kalok 330 20M Cyl: 615 rwc: 616 wpc: 616 ?1:0xBA ?2:0xB4 hds: 4 ?3:0x00
3: Drem 115MB Cyl: 1550 rwc: 1551 wpc: 1551 ?1:0xBA ?2:0xB8 hds: 9 ?3:0x01
4: Rodime 53 Meg. Cyl: 640 rwc: 641 wpc: 641 ?1:0xBA ?2:0xBC hds: 8 ?3:0x02
5: Seagate st1100 Cyl: 1070 rwc: 1071 wpc: 1071 ?1:0xBA ?2:0xC0 hds: 9 ?3:0x20
6: Maxtor 85 Meg. Cyl: 1024 rwc: 1025 wpc: 1025 ?1:0xBA ?2:0xC4 hds: 8 ?3:0x22
7: Maxtor 190 Meg. Cyl: 1224 rwc: 1225 wpc: 1225 ?1:0xBA ?2:0xC8 hds:15 ?3:0x23
8: Unknown Cyl: 0 rwc: 0 wpc: 0 ?1:0xBA ?2:0xCC hds: 0 ?3:0xF0
Enter Number to change or (S)ave, (Q)uit:
Btw, the machine was originally equipped with a QIC-24 drive (Tandberg with s separate formatter board to provide QIC-02). I replaced that drive with an archive 150 MB to be able to write tapes on a linux machine that can be read by the 2000.