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From: brando@uicsl.csl.uiuc.edu (Brandon Brown)
Newsgroups: comp.unix.sysv386
Subject: Re: root and boot floppy on ISC
Keywords: root boot floppy ISC interactive
Message-ID: <1991Apr15.130248.16343@ux1.cso.uiuc.edu>
Date: 15 Apr 91 13:02:48 GMT
References: <59@talgras.UUCP> <1991Apr3.203354.18641@eci386.uucp> <538@jahangir.UUCP> <1991Apr11.171616.14088@sci34hub.sci.com> <1991Apr12.175337.3858@crom2.uucp>
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Organization: University of Illinois at Urbana
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jim@crom2.uucp (James P. H. Fuller) writes:


>     But you *can't* hack a copy of the boot floppy itself (even though it's
>cloneable by either dd or DOS diskcopy) because it isn't mountable, because
>mount doesn't recognize it as containing any kind of valid filesystem.  It
>isn't 1K, it isn't 2K, it isn't DOS, it isn't XENIX, and that's all the types
>of filesystem that come with ISC.  fstyp(1M) can't make head or tail of the
>boot floppy.  Has anyone got any idea what it is?

I'm sure a billion people will correct me if I'm wrong, but isn't the kernel
actually on the first floppy? I think you are using the wrong device when
you are trying to mount it. You are probably using f0q15dt. The "t" on the
end tells it to look at the entire floppy. If you leave off the "t" for
f0q15d, you should be able to fsck, mount, etc. the filesystem on the root;
the one with /unix on it. Of course, for all "normal" operations like doing
dumps to floppies, you should use the "dt" device.

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