Yahoo Groups archive

Emax

Index last updated: 2026-04-28 23:23 UTC

Message

Re: booting emax from hd

2009-01-05 by esynthesist

Thanks for the detailed information.
But the Emax-I is quite different from the Emax-II in the field of 
SCSI behaviour. The Emax OS also doesn't have a "set SCSI ID" option 
like the Emax-II does.
And... as far as I know there's no battery in an Emax :-)

///E-Synthesist

--- In emax@...m, "thenewyorkcowboy" 
<thenewyorkcowboy@...> wrote:
>
> --- In emax@yahoogroups.com, "Ted Summers" <djtbs1@> wrote:
> >
> > Esynthesist-
> > 
> > After all you have done to help this group as you have, I think I
> speak for
> > most of us, if not all, when I say your posts are welcome, 
whatever
> they may
> > be.....
> > 
> > I noticed the inability to scan earlier posts myself recently.
> > 
> > I dunno what may be wrong. I am not sure.
> > 
> > .....termination pwr jumper missing for the drive or missing 
termination
> > resistors?
> > ....the drive is on the last connector of the cable....correct?
> > You say no external HD is hooked, do you have an external Zip 
hooked????
> > 
> > Can you clarify exactly the scsi chain-
> > 
> > for example:
> > emax board ------   scsi cable------  last connector of cable ----
-- HD
> > HD settings- which HD and what jumpers are there....
> > Confirm value of the termination resistors- they should be 
220/330ohm.
> > 
> > My Compact Flash drives are set as ID 0 on my Rack and keyboard. I
> have slim
> > floppy on both units.
> > They work as you describe  in the "bottom line" section of your 
post-
> > If floppy is present, boot from it, if no floppy, boot from 
CF/HD......
> > 
> > I am using SE Plus 1.0 OS.
> > 
> > Regards,
> > Ted
> > 
> > 
> > On Mon, Jan 5, 2009 at 8:22 AM, esynthesist <esynthesist@> wrote:
> > 
> > >   The problem below has probably been posted here before, but 
the
> > > search engine on the yahoo groups seems not to scan older 
messages
> > > anymore, so I thought I'm "allowed" give it another try:
> > >
> > > I just connected a hard disk to my Emax Plus Rack. Except for 
the
> > > floppy drive, no other hard drive is connected to the Emax. The 
SCSI
> > > ID of the HD is set to 0.
> > > The problem is: the Emax only wants to boot from the floppy. 
Once
> > > this is done, it recognizes the HD on SCSI ID O and I can 
load/unload
> > > banks from it. The HD also contains the Plus operating system: 
it has
> > > been formatted by the Emax and I performed an additional "copy
> > > software" just to be sure...
> > >
> > > Now I read about this "cheat" of the floppy connector on the
> > > motherboard (jumper between pins 25 and 26).
> > > But that's mainly used for replacing the floppy drive by an 
internal
> > > ZIP drive and making sure that the Emax still thinks a floppy 
drive
> > > is connected. That's not what I want.
> > >
> > > Bottom line: I don't understand this boot issue with the Emax. 
In the
> > > original documentation of Emu, it seemed perfectly possible to 
have
> > > an Emax with both an internal HD and a floppy drive. When 
booting,
> > > the Emax should first check the floppy drive; if no floppy disk 
is
> > > found, the Emax should boot from the HD on SCSI ID 0.
> > > It doesn't do that on mine, it doesn't even check the SCSI 
chain, it
> > > immediately asks to insert a disk.
> > >
> > > So what do you think I'm doing wrong ?
> > >
> > > Thanks
> > >
> > > ///E-Synthesist
> > >
> > > 
> > >
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
> As with all computer equipment there can be low level problems that
> ultimately can be traced back to the button battery as in a 
CMOS/BIOS.
>  Have you ever replaced the internal battery?
> 
> EASY SOLUTION:  On an Emax II make sure your SCSI boot ID is right,
> which is MASTER 9,6.  Validate beforehand with DRIVE SELECT and the
> DATA slider what SCSI ID is your HDD.
> 
> BACKGROUND:
> 
> I own an Emax II 2212 and have an external SCSI drive connected with
> an ACTIVE TERMINATOR on the 'out/chain' connector of the box, in my
> case, the top connector, the bottom has the cable.  I booted with 
the
> floppy and then followed the EMAX II manual for formatting a HD with
> the OS included.  It is a Connor 540mb so it took something like
> nearly two hours to format by the Emax.  Everything went well, etc.
> and through 'DRIVE SELECT' and the DATA slider the settings I was 
able
> to make sure what the true SCSI ID of the drive was, and through
> MASTER 9,6 to make the SCSI BOOT ID the same value.  In my case the
> first boot ID was the SCSI 1, as an EMAX II considers the floppy as
> SCSI 0.  As long as I had it plugged into power it worked fine, even
> being off for days at a time.  Once I disassembled the setup and 
moved
> it to another location, it did not want to recognize the SCSI device
> first and asked for the floppy.
> 
> I was puzzled so went back into DRIVE SELECT and the Data slider and
> verified the location of the device on the chain, it was being seen
> fine.  Then I went into MASTER 9,6 and found that it had reverted 
back
> to SCSI 0 which is the floppy. I just assumed that it got 'knocked
> out' somehow just like needing to calibrate the sliders from time to
> time, they just fall out for whatever reason.
> 
> I don't know how different the Emax Plus rack model is from an Emax
> II, but here are the steps as it pertains to my situation:
> 
> 0. Verify you have an active terminator on your SCSI device!  Mine 
has
> a LED so I know it is working as it should.
> 1.  Make sure the external HD is well powered up before turning on 
the
> Emax. I usually wait 10-15 seconds.
> 2.  Turn on the Emax and watch the display immediately.  This can 
give
> you alot of information in about one half second of time.  As you
> said, it is not searching the chain, so it is probably going 
straight
> for the floppy.
> 3.  Go ahead and insert the floppy disk when prompted, let it boot
> into the OS and then follow the instructions above, namely make sure
> you know what the Emax is seeing your external HD as through DRIVE
> SELECT and the data slider, then go into MASTER 9,6 to make sure it 
is
> choosing that number to boot from over the floppy, which usually 
takes
> up SCSI ID 0.
> 
> I don't know why mine fell out and had to be reset like that, but I 
am
> assuming it needs a new clock battery (as well as a backlight and B 
key!)
> 
> GOOD LUCK!
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.