goer@sophist.uucp (Richard Goerwitz) (07/22/89)
This sort of posting strikes me as insipid; yet here I am
making one again.
I have a machine on order I intend to run Xenix on. It
will be coming with a 150 meg Miniscribe drive with a WD
1007 ESDI controller. No problem with the controller.
However, will that drive have too many cylinders to run
properly and effectively under Xenix along with MS-DOS?
I just don't have the info on hand, and I've seen a few
postings recently on such matters. If someone can offer
a quick bit of advice, it might save me a few headaches.
In a word: Should I call quickly and change the order?
-Richard L. Goerwitz
goer@sophist.uchicago.edu
rutgers!oddjob!gide!sophist!goerbote@csense.UUCP (John Boteler) (07/25/89)
From article <4564@tank.uchicago.edu>, by goer@sophist.uucp (Richard Goerwitz): > I have a machine on order I intend to run Xenix on. It > will be coming with a 150 meg Miniscribe drive with a WD > 1007 ESDI controller. No problem with the controller. > However, will that drive have too many cylinders to run > properly and effectively under Xenix along with MS-DOS? Actually there may be a problem with the controller, indirectly. I have found that the only Western Digital controller that hasn't given me some amount of grief is the WD1006VSR2 track buffered, etc. ST-506 interface RLL controller. For all other needs I have found the DTC line of controllers to be exemplary. The DTC firmware does not flinch when you tell it your hard disk has more than 1024 cylinders and has provisions for attaching removable devices 3 and 4 on the rear apron of the card. I am posting this article using a 386 system with a 1166 cylinder Priam hard disk drive, partitioned into 33MB DOS and the rest for Xenix. I guess it is working. Note: this is an ST-506 interface, but the DTC6280 utilizes ESDI. If this helps, here is the output of my fdisk 'Display partition' option: +-------------+----------+---------+----------+--------+---------+ | Partition | Status | Type | Start | End | Size | +-------------+----------+---------+----------+--------+---------+ | 1 | Inactive | DOS | 1 | 2519 | 2519 | | 2 | Active | XENIX | 2527 | 8154 | 5628 | +-------------+----------+---------+----------+--------+---------+ Hope this helps, you and others. -- Bote uunet!cyclops!csense!bote {mimsy,sundc}!{prometheus,hqda-ai}!media!cyclops!csense!bote
davidsen@sungod.crd.ge.com (William Davidsen) (07/26/89)
In article <317@csense.UUCP> bote@csense.UUCP (John Boteler) writes: | I am posting this article using a 386 system with a 1166 cylinder | Priam hard disk drive, partitioned into 33MB DOS and the rest | for Xenix. I guess it is working. Note: this is an ST-506 interface, | but the DTC6280 utilizes ESDI. Is this a special version of Xenix? My impression was that Xenix only went to 1024 cylinders. Or have you set your controller to do some mapping so that the disk looks like more {heads,sectors} and fewer cylinders? bill davidsen (davidsen@crdos1.crd.GE.COM) {uunet | philabs}!crdgw1!crdos1!davidsen "Stupidity, like virtue, is its own reward" -me
clyde@hitech.ht.oz (Clyde Smith-Stubbs) (07/27/89)
From article <4564@tank.uchicago.edu>, by goer@sophist.uucp (Richard Goerwitz): > I have a machine on order I intend to run Xenix on. It > will be coming with a 150 meg Miniscribe drive with a WD > 1007 ESDI controller. No problem with the controller. > However, will that drive have too many cylinders to run > properly and effectively under Xenix along with MS-DOS? No problem - just make sure that you put your DOS partition FIRST. DOS (V3.X and earlier at least) doesn't address a disk bigger than 32MB, but Xenix will quite happily start anywhere on the drive. So; 1) Install DOS first 2) Install Xenix, using the rest of the drive for the Xenix partition and Bob's your uncle! ------------------------ Clyde Smith-Stubbs HI-TECH Software, P.O. Box 103, ALDERLEY, QLD, 4051, AUSTRALIA. ACSnet: clyde@hitech.ht.oz INTERNET: clyde@hitech.ht.oz.au PHONE: +61 7 300 5011 UUCP: uunet!hitech.ht.oz.au!clyde FAX: +61 7 300 5246
macy@fmsystm.UUCP (Macy Hallock) (07/27/89)
In article <4564@tank.uchicago.edu> goer@sophist.UUCP (Richard Goerwitz) writes: > >I have a machine on order I intend to run Xenix on. It >will be coming with a 150 meg Miniscribe drive with a WD >1007 ESDI controller. No problem with the controller. >However, will that drive have too many cylinders to run >properly and effectively under Xenix along with MS-DOS? We find that using a disk with over 1024 cylinders is a problem with DOS 3.3 (Xenix 2.3.X doesn't care) in both ESDI and ST-506 installations. We have not been able to get DOS and Xenix to live together on the same disk when the disk is over 1024 cyl. It appears to be a problem in fdisk partioning (10 bit addressing?) with DOS. Xenix 2.2.X and would only work with drives of less than 1024 cyl. Macy Hallock fmsystm!macy@NCoast.ORG F M Systems, Inc. hal!ncoast!fmsystm!macy 150 Highland Dr. uunet!aablue!fmsystm!macy Medina, OH 44256 Voice: 216-723-3000 X251 Disclaimer: My advice is worth what you paid for it. Your milage may vary.
karl@ddsw1.MCS.COM (Karl Denninger) (07/27/89)
In article <1345@crdgw1.crd.ge.com> davidsen@crdos1.UUCP (bill davidsen) writes: >In article <317@csense.UUCP> bote@csense.UUCP (John Boteler) writes: > >| I am posting this article using a 386 system with a 1166 cylinder >| Priam hard disk drive, partitioned into 33MB DOS and the rest >| for Xenix. I guess it is working. Note: this is an ST-506 interface, >| but the DTC6280 utilizes ESDI. > > Is this a special version of Xenix? My impression was that Xenix only >went to 1024 cylinders. No special mapping necessary. We have installed (~ 4 weeks ago) a Xenix system with a 170MB ESDI drive, which had 1224 cyls. Just set it up in the dkinit for 1224 X 7, and it works fine. I have _disabled_ the BIOS ROMS on the controller, so I know that it is not doing any remapping or other "funny stuff". Works like a champ. -- Karl Denninger (karl@ddsw1.MCS.COM, <well-connected>!ddsw1!karl) Public Access Data Line: [+1 312 566-8911], Voice: [+1 312 566-8910] Macro Computer Solutions, Inc. "Quality Solutions at a Fair Price"