hh2@prism.gatech.EDU (HAAS) (11/04/90)
Has anyone EVER installed a SCSI adapter and a non-IBM hard disk to
a PS/2 running AIX 1.2 ?!?!
I can't get a straight answer out of IBM about this. Some folks say yes,
others no, and NO-ONE will say enough to give me any idea what I
should do.
SITUATION:
I have an IBM PS/2 Model 80, AIX 1.2 and a Maxtor XT-8760s (660 MB SCSI
hard disk). I have ordered the IBM 6451109 non-cache SCSI controller.
Can anyone say - for sure - that AIX 1.2 and the 6451109 will be able
to talk to, and fully format, tha Maxtor drive? Has anyone DONE this
or something similar?
What I know so far:
AIX 1.1 does not support SCSI. AIX 1.2 does. (I have CSDs to 1006)
AIX ONLY supports the IBM SCSI adapters. (other adapters will work under
DOS, OS/2, Novell, Xenix, etc., but **NOT** AIX: grrrr ) AIX 1.2 and the
6451109 wants to see a ANSI compatible (standard X3.131, level 2 ??) SCSI
disk. And although an IBM technical support person said that "all you need
is an ANSI compatible SCSI disk", ANOTHER IBM person has said that AIX
only supports the IBM 120 and 320 MB Hard disks.
What I need:
I need to know what I must do in order to install the hard disk. I
figure when the adapter gets here, I'll copy the ADF, install the
controller, run the reference disk to configure the adapter. THEN,
I'll try to boot AIX from floppy, and install AIX to the SCSI hard disk.
(The SCSI disk is the only hard disk in the system.) I'm having a dificult
time believing that this will work. Any help, please?
Harry Haas
---
Harry Haas GTRI/RIDL/EB "What makes it DO that!?" - Bones
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!hh2
Internet: hhaas@{gtri01|rmadsun}.gatech.edu hh2@prism.gatech.edu
--
Harry Haas GTRI/RIDL/DB "What makes it DO that!?" - Bones
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!hh2
Internet: hh2@prism.gatech.edu hhaas@{gtri01|rmadsun}.gatech.edutegge@idt.unit.no (Tor Egge) (11/05/90)
In article <16332@hydra.gatech.EDU> hh2@prism.gatech.EDU (Harry Haas) writes: > >Has anyone EVER installed a SCSI adapter and a non-IBM hard disk to >a PS/2 running AIX 1.2 ?!?! > Yes. I've installed AIX on a Seagate Wren VII, (989 MB formatted capacity). 1. Make a copy of the three first diskettes in the AIX 1.2 distribution (Boot (1), Boot (2) and Install (3)). DO NOT UNDER ANY CIRCUMSTANCES MODIFY THE ORIGINAL DISKETTES. 2. You need to add entries in /etc/fsmap on your copy of the installation diskette (Disk 3) for the formatted capacity of your disk (rounded down to closest 5 MB,(I needed an entry for 985 MB)). If the correct entries are not present, mkfs for the root partition fails. To add these entries, you need to have a running version of AIX. (or you may use a disk-editor, and modify the 320 MB entries into the desired entry) 3. Since your disk probably has more than 512 MB formatted capacity, you also need to patch some more files: Name: Diskette ----- -------- /boot Boot (1) /generic/install/generic.i386/mhdboot Install (3) /generic/install/generic.i386/mhdload Install (3) The code converting from block number (32 bits) to cylinder,head,sector (parameters to BIOS INT 13H) uses an intermediate 16 bits signed integer. By patching it to use an unsigned integer, the limit is pushed to 1 GB formatted capacity (Which was enough for me). Instead of the sequence 8BF8 897EE0 C746DE0100 99 8B5EF6 F77F02 8946DC 8BC7 99 F77F02 8BFA you need the sequence 8946E0 C746DE0100 31D2 8B5EF6 F77702 8946DC 89D7 90 90 90 90 90 90 90. i.e. before: 8BF8 MOV DI,AX 897EE0 MOV [BP-20],DI C746DE0100 MOV WORD PTR [BP-22],0001 99 CWD 8B5EF6 MOV BX,[BP-0A] F77F02 IDIV WORD PTR [BX+02] 8946DC MOV [BP-24],AX 8BC7 MOV AX,DI 99 CWD F77F02 IDIV WORD PTR [BX+02] 8BFA MOV DI,DX and after: 8946E0 MOV [BP-20],AX C746DE0100 MOV WORD PTR [BP-22],0001 31D2 XOR DX,DX 8B5EF6 MOV BX,[BP-0A] F77702 DIV WORD PTR [BX+02] 8946DC MOV [BP-24],AX 89D7 MOV DI,AX 90 NOP 90 NOP 90 NOP 90 NOP 90 NOP 90 NOP 90 NOP 4. Now install AIX with your modified diskettes. Disclaimer: I take no responsibility for any of the statements/code/data above, nor any effects/defects that they might give. Tor Egge email: tegge@idt.unit.no
rlm@jdyx.UUCP (Richard Mayson) (11/05/90)
AIX 1.2, as is, will not support your 660 drive. If you have somewhere to mount the installation diskette, you can edit the control file that tells AIX about the disk drive. The file that you are after is /etc/fsmap. It is present on an installed system but you will have to edit the one on the installation diskette. You will find stanzas for each filesystem in the form of: "I386_PRI120" root - for a 120mb drive "I386_LCL120" /local "I386_U120" /u "I386_DMP120" dump "I386_PAGE120" page "I386_TMP120" /local/tmp add: "I386_PRI655" "I386_PRI660" "I386_PRI665" etc........... I would suggest adding 3 lines each. For example, if the reference diskette shows a 658mb drive, add a line for a 655, 660, and 665, there is a small % for error. DO NOT copy the existing file from the hard drive to the diskette. Basically, just add into the fsmap file that is on the installation diskette and FOLLOW IT'S FORMAT! Richard Mayson rlm@jdyx.atlanta.ga.us hh2@prism.gatech.EDU (HAAS) writes: >Has anyone EVER installed a SCSI adapter and a non-IBM hard disk to >a PS/2 running AIX 1.2 ?!?! >I can't get a straight answer out of IBM about this. Some folks say yes, >others no, and NO-ONE will say enough to give me any idea what I >should do. >SITUATION: >I have an IBM PS/2 Model 80, AIX 1.2 and a Maxtor XT-8760s (660 MB SCSI >hard disk). I have ordered the IBM 6451109 non-cache SCSI controller. >Can anyone say - for sure - that AIX 1.2 and the 6451109 will be able >to talk to, and fully format, tha Maxtor drive? Has anyone DONE this >or something similar? >What I know so far: >AIX 1.1 does not support SCSI. AIX 1.2 does. (I have CSDs to 1006) >AIX ONLY supports the IBM SCSI adapters. (other adapters will work under >DOS, OS/2, Novell, Xenix, etc., but **NOT** AIX: grrrr ) AIX 1.2 and the >6451109 wants to see a ANSI compatible (standard X3.131, level 2 ??) SCSI >disk. And although an IBM technical support person said that "all you need >is an ANSI compatible SCSI disk", ANOTHER IBM person has said that AIX >only supports the IBM 120 and 320 MB Hard disks. >What I need: >I need to know what I must do in order to install the hard disk. I >figure when the adapter gets here, I'll copy the ADF, install the >controller, run the reference disk to configure the adapter. THEN, >I'll try to boot AIX from floppy, and install AIX to the SCSI hard disk. >(The SCSI disk is the only hard disk in the system.) I'm having a dificult >time believing that this will work. Any help, please? >Harry Haas >--- >Harry Haas GTRI/RIDL/EB "What makes it DO that!?" - Bones >Georgia Institute of Technology, Atlanta Georgia, 30332 >uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!hh2 >Internet: hhaas@{gtri01|rmadsun}.gatech.edu hh2@prism.gatech.edu >-- >Harry Haas GTRI/RIDL/DB "What makes it DO that!?" - Bones >Georgia Institute of Technology, Atlanta Georgia, 30332 >uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!hh2 >Internet: hh2@prism.gatech.edu hhaas@{gtri01|rmadsun}.gatech.edu