[K12OSN] using really old PCs as clients

"Terrell Prudé Jr." microman at cmosnetworks.com
Wed Oct 14 23:11:58 UTC 2009


Define more precisely "the PC refuses to start" for us.

--TP
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raju VK wrote:
> I was about to try this method. But I am facing a peculiar problem. 
> The oldest HDDs I currently have is of 39 pin. But the connector on 
> board is of 40 pins. When I tried to boot the PC by connecting one of 
> these HDDs, (with (DOS), the PC refuses to start.  I tried by flipping 
> the cable ( to check whether it is fitted reversley). Once the HDD is 
> disconnected, the PC starts without any problem.
> Any clue what went wrong ?
>
> Regards,
> Raju
>
> On Wed, Oct 14, 2009 at 8:59 PM, "Terrell Prudé Jr." 
> <microman at cmosnetworks.com <mailto:microman at cmosnetworks.com>> wrote:
>
>     Also remember that even though the floppy drives aren't working,
>     you can accomplish the same thing with the hard disk instead. 
>     What I do in this case is pull the old box's hard disk out of it,
>     install it in another GNU/Linux or other UNIX-style box, and then
>     "cat" the Rom-O-Matic image to the hard disk, like so.  This
>     example is for the 3Com 3C905 series, and it assumes the old box's
>     hard disk shows up as /dev/hdb.
>
>       terrell at thinclientmaker$ su - root
>       Password:  (enter root's password here)
>       root at thinclientmaker# cat eb-5.4.4-3c90x.zdsk > /dev/hdb
>       root at thinclientmaker# halt
>
>     Then, just pop this new "EtherBoot hard disk" back into the old
>     box and boot from it.  If you set up one box to do all your old
>     hard disks this way, it goes pretty quickly.  I did something
>     similar with some EIDE Sun Ultra 5 hard disks a few years back (I
>     used an x86 machine for the cat'ing), and I had ten hard disks all
>     config'd in about 20 minutes.
>
>
>     --TP
>     _______________________________
>     Do you GNU <http://www.gnu.org>?
>     Microsoft Free since 2003 <http://www.cmosnetworks.com>--the
>     ultimate antivirus protection!
>
>
>     raju VK wrote:
>>     Thanks for the clarification.  Hardware vendors and other people
>>     were not sure of this. That is why I posted it. This assumes
>>     significance as the floppy drives on al these machines  are not
>>     working. Therefore I  have decided to give a try even if  the
>>     query is not answered.
>>
>>
>>
>>     with many thanks,
>>     Raju
>>
>>     On Tue, Oct 13, 2009 at 8:54 AM, "Terrell Prudé Jr."
>>     <microman at cmosnetworks.com <mailto:microman at cmosnetworks.com>> wrote:
>>
>>         Actually, it was answered, but perhaps you're not
>>         understanding just what it is we're saying here.  Any card
>>         that supports PXE-booting is just such a card as you
>>         describe, with its own boot ROM on it.
>>
>>         Here's some additional information as well.  If you have any
>>         3Com 3C905 cards handy (either the original or the "B"
>>         variant), you'll notice a socket for a chip.  That socket is
>>         where you'd put the boot ROM for that card.  If you do put
>>         that in, then your PC will happily boot from the network. 
>>         Jim McQuillan sells these chips for several types of network
>>         card, not just 3C905's.  But what if you don't happen to have
>>         that chip, and your employer will not pop for these chips? 
>>         That's when you "substitute" the boot ROM chip for a floppy
>>         disk, hard disk, or CD-ROM with that same boot ROM image on
>>         it.  It accomplishes exactly the same thing.
>>
>>         Hopefully this helps to clear some things up.
>>
>>
>>         --TP
>>         _______________________________
>>         Do you GNU <http://www.gnu.org>?
>>         Microsoft Free since 2003 <http://www.cmosnetworks.com>--the
>>         ultimate antivirus protection!
>>
>>
>>         raju VK wrote:
>>>         Thanks for all the replies. But even now my question is not
>>>         properly answered. It is simply,  if I use a new network
>>>         card with boot ROM, 
>>>         whether I can boot in to a network even if the boot options
>>>         does not have an entry for network card as boot device.
>>>
>>>         From the replies I assume the answer is negative and the
>>>         only option is to use a boot floppy.
>>>
>>>         regards,
>>>         Raju
>>>
>>>
>>>         On Sun, Oct 11, 2009 at 9:48 PM, Klaus Ade Johnstad
>>>         <klaus at skolelinux.no <mailto:klaus at skolelinux.no>> wrote:
>>>
>>>              Søndag 11. oktober 2009 17.44.09 skrev raju VK :
>>>             > I have successfully installed the terminal server on
>>>             my fc10
>>>             >  desktop.. Now my question is now I can use some
>>>             vintage (1998/99)
>>>             >  PCs as clients. The PCs has no option to boot from
>>>             network. Other
>>>             >  wise they are still functional. If I use a network
>>>             card with boot
>>>             >  ROM can I connect these PCs to the terminal server ?.
>>>             I googling the
>>>             >  net last two days does not yield any result.
>>>             >
>>>             >
>>>             > with thanks in advance,
>>>             > Raju
>>>             >
>>>
>>>             One person that is using realy old PC as clients (like
>>>             i486 w/4MB ram)
>>>             is Alberto Castillo from Argentina. Search the
>>>             listarchives for mail
>>>             from him,  Alberto Castillo <proyecto.edulin at gmail.com
>>>             <mailto:proyecto.edulin at gmail.com>>
>>>
>>>             That would be a good startin point.
>>>
>>>             --
>>>             Klaus Ade
>>>             67E61D18B2C44F8A3DA35C6D849F9F5F 26FA477D
>>>
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