alexb@cfctech.cfc.com (Alex Beylin) (01/10/91)
It showed up last Friday - finally, the 486-25 box from Tri-Star. The rest of the weekend was spend assembling the system, installing Interactive Unix ver. 2.2 and testing things. As the result, here are a few questions (with many more yet to come, I am sure), I have not been able to puzzle-out myself. Any and all help will be much apreciated. RTFM responces are greatfully accepted, provided aproximate location is indicated. 1. The system came with WD MFM controller. I bought Adaptec 1542A controller and 300 MB disk from another source and was planning to use it as the primary drive and two MFM disks as secondary storage. Alas, I discovered later that the only supported configuration has MFM as primary controller. Obviously, I would not want to do that and place my swap and root on a slower drive. Am I missing a work-around? Is there a way to use my MFM drives for DOS, if not UNIX. (The system will not even boot now if I have any MFM drives connected to the controller). 2. Another question about the Adaptec controller. The manual that came with it specifies that in order to use both internal and external SCSI devices, I need to remove two terminating resistors from the card and make sure both internal ane external chains are properly terminated. Well, the hard drive I have inside the machine has a row of 50 pin-slots above the connector for the ribbon cable that I assume are for a terminating resistor, but I have never seen anything a terminating resistor that long, nor can any local vendors suggest a source. Am I right in my guess that I need to have the HD terminated in some way before I can ass external devices and where do I get the proper terminator if I am? I have tried adding an external SCSI tape drive and removing either on or both of the resistors on the 1542 card, but could not come up under UNIX. 3. Is there a way to have console operate in 43-line mode? I have a Paradise 1024x768 card and NEC MultiSync II monitor, but do not have disk or memory to install X (yet). 4. From back when I had a 286-based Xenix system, I have an AST 4-port card. Now, the drivers that came with the card are useless on this system and AST tech support told me that they do not provide drivers for Interactive and rely on SCO for drivers in that enviroment. Is there a way I could use this card? The manual suffeed page attrition over the years, so if someone in the net can tell me what I need to do to set it up as COM3 or COM4 (already have COM1 and COM2), I would be very greatfull. 5. Is there ftp archive for 386-based unix software and patches? For example, diffs for gcc, gcc+ and GNU emacs would save time and effort if they existed. (I have not tried to compile either of those yet, but somehow I can't belive it will all go with no hitch). Thanks in advance for any help with the above, -- Alex Alex Beylin, Systems Specialist| +1 313 759-7114 alexb@cfctech.cfc.com | Chrysler Corp. sharkey!cfctech!alexb | MIS, Distributed Systems ATT Mail ID: attmail!abeylin | Southfield, MI 48034
det@hawkmoon.MN.ORG (Derek E. Terveer) (01/14/91)
larry@nstar.rn.com (Larry Snyder) writes: >on the SCSI drives that I have seen - the terminator resistors are in >pairs - and look like either a dip or a long skinny device with lots >of leads in a row. I have never seen a 50 pin terminator - what >type of drive? I have seen 50 pin resistors used on external drives on Sun equipment, or at least on equipment commonly hooked up to Sun workstations. For example 8mm tape drives and CD roms. -- Derek "Tigger" Terveer det@hawkmoon.MN.ORG - MNFHA, NCS - UMN Women's Lax, MWD I am the way and the truth and the light, I know all the answers; don't need your advice. -- "I am the way and the truth and the light" -- The Legendary Pink Dots
src@scuzzy.in-berlin.de (Heiko Blume) (01/15/91)
larry@nstar.rn.com (Larry Snyder) writes: >on the SCSI drives that I have seen - the terminator resistors are in >pairs - and look like either a dip or a long skinny device with lots >of leads in a row. I have never seen a 50 pin terminator - what >type of drive? i'd recommend using *three* of them or *none*, using two or one might give you very funny electrical characteristics :-) btw: those beast are called 'resistor arrays'. -- Heiko Blume <-+-> src@scuzzy.in-berlin.de <-+-> (+49 30) 691 88 93 public source archive [HST V.42bis]: scuzzy Any ACU,f 38400 6919520 gin:--gin: nuucp sword: nuucp uucp scuzzy!/src/README /your/home
alexb@cfctech.cfc.com (Alex Beylin) (01/17/91)
In article <1991Jan14.082427.1809@hawkmoon.MN.ORG det@hawkmoon.MN.ORG (Derek E. Terveer) writes: larry@nstar.rn.com (Larry Snyder) writes: >on the SCSI drives that I have seen - the terminator resistors are in >pairs - and look like either a dip or a long skinny device with lots >of leads in a row. I have never seen a 50 pin terminator - what >type of drive? I was wrong - 25 pins. The drive does not have a manufacturer listed. The ribbon cable connection on the drive is 2 rows of 25 pins. Above that is a row of 25 "holes" that look like they would take a "long skinny device with lots of leads in a row" you desribe. I can only assume that it is for the terminating of the SCSI chain. Where can I get such a device? Noone around here has one or can find one in catalogs. I called JDR Electronics, but they didn't know what I am talking about. -- Alex (alexb@cfctech.cfc.com)