bootable 360K for AT&T6300+

[Alex Batyi]

Forgive the verbosity of this post, I couldn't figure out what else to
delete.  -alex
>From: uunet!marque.mu.edu!introl!booth!roger
>To: lgnp1!wells!alba2l!bud
>Subject: Re: bootable 360K for AT&T6300+
>
>In article <300 at alba2l.UUCP> you write:
>>
>> I have hooked a 360K floppy drive up to my AT&T6300plus as /dev/dsk/f1
>>and am wondering if anyone has heard of a 360K Unix boot track for this
>>machine.  I have surmised from reading netnews that the unixpc (3B1/7300?)
>>has a 360K floppy and uses a two disk version of Unix foundation set 1.
>> Those I have asked so far have thought it couldn't be done but the
>>unixpc situation has me convinced otherwise.  Thanx in advance for info!
>>                                                        -alex  
>
>	I am not sure what you are trying to DO, but the Unix-PC (3B1/PC7300)
>is a 68010 processor and as such is TOTALLY incompatable with the pc6300+.
>Furthermore, the Unix-PC can be booted of a single 360K floppy, albiet with
>a seriously reduced system.  All the code for the Unix-PC is incompatable
>with you 6300+.  You need Xenix, Microport or AT&T Unix for that machine.
>(Yes I know Microport is belly-up).  Then you should also have the required
>boot tracks, usually for a hard disk (Why would you want a floppy unix, except
>to repair the hard disk?).
>	Since I am not sure what you are trying to do, I am sure there must
>be other who are also confused by you posting, I suggest re-posting with a
>more general idea of what you want.  The net CAN be quite helpful...
>
>						- Roger

I really appreciate your reply Roger.  I have difficulty communicating
with you unixpc guys in spite of the plus' supposedly being a relative.
I'm not sure why, but let me venture a guess.  Does the unixpc come with
the operating system ON the HD?  The plus doesn't come with Unix, it
comes with dos, and this is on floppy.  The foundation set for Unix for
the plus is on _1_._2 _m_e_g _f_l_o_p_p_i_e_s,
disk one being bootable and the rest are cpios.
        BTW I am using AT&T Unix purchased from the AT&T Sourcebook.
As for what I am trying to DO, you mentioned that a limited system can be
booted into the unixpc via 360K floppy.  I don't have this option.  I have
also read that once booted the floppy can be changed to do say a fsck or
fsdb on the HD.
   With the addition of my 360K drive (initially for the purpose of
being able to format a 360K dos floppy reliably under simultask) I wanted
the option of fixing things in an almost worst case scenario. (HD and 1.2meg
drives FUBAR)  That is why I specified a 360K boot track for the
_P_L_U_S.
I do realize that the plus and the unixpc have different cpu chips.  The
only reason I mentioned the 3b1/7300 was that my earlier inquiries via
email received responses indicating skepticisms as to the ability to put
unix on a floppy so small as 360K.  I figured if they can do it on the
unixpc, why not the plus.  I have put a file system on the 360 and even
copied /unix to it.  The only thing missing is a boot track!  Oops!
almost forgot to mention that I am aware that I still haven't found out
how to switch the floppy once unix is booted, and may have to build a
unix that is anemic.
    I seriously doubt anybody else is interested in doing what I am
attempting, although I know of one person who tried and failed, so
please reply via email.  I am almost certain that the wheel hasn't been
invented and will stop bothering the net now.  Thanks for the lack of
flames!                                             -alex
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      AJB                    +1 215 788 5957          [...!bpa!]alba2l!bud
      Quote:"If you lose your memory, forget it!"           bud at alba2l.UUCP
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