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From: urlichs@smurf.sub.org (Matthias Urlichs)
Newsgroups: comp.unix.aux
Subject: Re: 3rd party disk drives
Message-ID: <1990Mar11.130248.12980@smurf.sub.org>
Date: 11 Mar 90 13:02:48 GMT
References: <4506@helios.TAMU.EDU> <12315@thorin.cs.unc.edu> <1759@sequent.cs.qmw.ac.uk> <9023@shlump.nac.dec.com> <235@inpnms.UUCP> <1990Mar9.063910.2536@servalan.uucp>
Organization: University of Karlsruhe, FRG
Lines: 40

In comp.unix.aux, article <1990Mar9.063910.2536@servalan.uucp>,
  rmtodd@servalan.uucp (Richard Todd) writes:
< In article <235@inpnms.UUCP> logan@inpnms.UUCP (Jim Logan) writes:
< 
< >  Can I boot from this
< >external 300MB drive?  Can I leave the Finder on my 40MB internal
< >drive so I can use it sometimes?
<   Not only can you leave a MacOS (Finder) partition on your 40M internal,
< you *have* to have a MacOS partition on at least one of your drives.

You can always boot from floppy disk.

Some people _have_ to do hat anyway -- on my system, sash won't run. Too many
INITs I suppose.

< [...] Sash has options for specifying a Unix boot device different
< than the one for MacOS.  I haven't tried that sort of a setup, but I'd be
< real surprised if it didn't work.  

No problem.

Things get hairier if you want to put the swap partition onto another disk.
# pname -a -c X -d 0 -s 2 "Swap" # swap partition on SCSI disk w/ ID X
  (The name "Swap" may be different for your system, do
  # dp /dev/dsk/cXd0s31
  ? P
  ? q
  to find out...)
# man kconfig            # :-)
# kconfig -n /unix <<END
  SWAPDEV=0x1C02         # that's /dev/dsk/c4d0s2
  SWAPCNT=xxxx           # whatever
  END
# kconfig /newunix the same way, _or_ do a
# kconfig -a -n /unix >/my.config
  and run
  # kconfig -n /unix </my.config
  after every autoconfig.
-- 
Matthias Urlichs