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- Path: sparky!uunet!europa.asd.contel.com!emory!ogicse!uwm.edu!rutgers!spcvxb!terry
- From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
- Newsgroups: comp.unix.bsd
- Subject: Re: The SCSI Controller saga continues...
- Message-ID: <1992Nov17.224351.4470@spcvxb.spc.edu>
- Date: 18 Nov 92 03:43:51 GMT
- Article-I.D.: spcvxb.1992Nov17.224351.4470
- References: <1eb50mINNoc@hrd769.brooks.af.mil>
- Organization: St. Peter's College, US
- Lines: 24
-
- In article <1eb50mINNoc@hrd769.brooks.af.mil>, burgess@hrd769.brooks.af.mil (Dave Burgess) writes:
- > 2) If a floppy is in the disk drive, the system will boot, and identify the
- > hard disk controller as IRQ 14, 0x1f0. Isn't that the combo for the IDE drive?
- > The hard drive is then mountable, fillable, fsckable, etc01.*-able, etc. Every
- > check seems to work, all systems go. But only as wd0*. Remember, this is an
- > SCSI drive.
- >
- > Huh?
-
- It looks your hard disk controller provides emulation registers for the AT-
- type controller. That means that it can be used without special drivers for
- things like DOS, Novell Netware, etc.
-
- However, depending on what the OS does to poke the registers on a boot, the
- controller may change the drive's reported geometry. That would cause all sorts
- of odd behavior on booting.
-
- I'd try sticking the wdboot out there and see if that makes it bootable. Of
- course, you're liable to get better performance if you can run the controller
- in native (SCSI) mode, rather than relying on the emulation registers.
-
- Terry Kennedy Operations Manager, Academic Computing
- terry@spcvxa.bitnet St. Peter's College, Jersey City, NJ USA
- terry@spcvxa.spc.edu +1 201 915 9381
-