A/UX 2.0.1 questions

Matthias Urlichs urlichs at smurf.sub.org
Wed Mar 13 22:07:26 AEST 1991


In comp.unix.aux, article <50137 at apple.Apple.COM>,
  ksand at Apple.COM (Kent Sandvik) writes:
< 
< In article <1991Mar10.182907.9845 at panix.uucp> alexis at panix.uucp (Alexis Rosen) writes:
< >>Well, the trick with patching _HFSDispatch in order to fake multiple
< >>HFS volumes on one single volume has always been a hack, and thus
< >>is not suppored by neither A/UX or MacOS.
< >
< >Please. It works. Thousands of people use it, and you should support it.
< >No debate is permissible on this subject. :-)
< 
< Well, MacOS emulation specs are based on the Inside Macintosh documentation,
< and there's never been a official policy of supporting patches that are 
< not defined by Apple documentation. This is also true of System 7, which
< may or may not break INITs that patch _HFSDispatch.
< 
Would you please all shut up about patching _HFSDispatch. Its nonsense.
If SilverLining or anyone else does so, it's for reasons that probably have
nothing to do with multiple volumes.

Also, Inside Mac does _not_ state that there may be only one HFS partition on
any SCSI device. That's a (stupid, IMHO) restriction which is enforced by the
Apple Installer and by A/UX 2.0.
< 
< >This is the real problem. It is disgraceful that HD Setup won't partition
< >3rd party drives. I wouldn't mind if it could put drivers on them too, but
< >that's not so critical. [...]
< 
< A couple of days ago I understood why we won't support TPV drives
< with HD Setup. I had this problem with a LaCie drive, where using [...]

PLEASE! Listen to one another!

Changing modes on a device is a function of the driver.
Alexis wasn't asking to change the driver or any other characteristic of the
hard disk, only to change the partition layout which should be an entirely
different problem. Partition layouts are standardized in IM V, right?

< Anyway, if a customer reads that HD Setup can partition *any* 
< TPV hard disk, and tries with HD Setup, which can't possibly know
< all the possible firmware programming setups and firmware control
< codes for every TPV hard disk drive, then....
< 
See above.

-- 
Matthias Urlichs -- urlichs at smurf.sub.org -- urlichs at smurf.ira.uka.de     /(o\
Humboldtstrasse 7 - 7500 Karlsruhe 1 - FRG -- +49-721-621127(0700-2330)   \o)/



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