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Re: Boot process description (Was: Re: Netboot not detected by system with PCI SCSI host adapter)



At 11:08 PM 3/12/99 GMT, you wrote:
>Hello,
>
>Mike Hammer <mike-hammer@usa.net> wrote:
>> PS. In regards to my past postings on testing of Netboot 0.9.0d version,
>>     i could send you two SBC's (Single Board Computer) where one has
>>     Realtek 8029AS right on the main board and the other having Realtek
>>     8139A embedded.  If you think this would help in your development and
>>     work toward future releases, just let me know and i'll FedEx it
>>     right to you.  I would need your address though.
>
>I have a couple of 8029 cards myself (as they are the cheapest to get ;-)).
>Trying to use the 8139 would be interesting, but I still have a 10Base2
Ethernet,
>no twisted-pair installation (I don't know which is actually supported by
your
>boards). Besides, sending the board over the Atlantic just for testing
might get
>a little expensive. However, thank you very much for your offer - I would
>really like to test the 8139 board (and buy it for my own use from you) if
>it doesn't get too expensive. Please send me a private email with the board
>specs to gero@gkminix.han.de if your offer is still valid.
>
I'll be e-mailing to your private e-mail regarding the board specs.  Just
wanted to let you know that i'm having very difficult time getting an add-on
PCI network adapter board that's using Realtek's 8139A chip.  The system board
that i was mentioning and offered to send it to you uses 10BaseT connector
which it has right on the system board.  I can offer to send you a hub that
has both 10BaseT and 10Base2.  I would really like to start using your
0.9.0 version since i'm *very* ancious to start developing using the new
PXE support.  I'm in need of adding a minimal UDP/IP support to my application
with support for TFTP client and your 0.9.0 version seem to provide such
environment.  Just say the word and the hub and system board will be sent
to you.  However i'll also try to look further into getting add-on PCI LAN
card using Realtek 8139A.

I need to start doing more testing using 0.9.0d with 8019 and 8029 since last
time i left the testing of 0.9.0d, i was heaving problem with *even* 8019
and 8029.  I'll have more information here soon.

Does your network adapter board in Linux box only has 10Base2 connector?
Looks
like you can only interconnect the client(s) to your Linux PC using only
10Base2.

>> PSS. Previously i have posted the block0 froma typical Windows 95 (MSDOS7)
>>      boot floppy.  Is this helpful in adapting mknbi-dos to support
>>      generating ramdisk from a file as opposed to from floppy?
>
>Sorry, but I haven't had the time yet to check on your boot sector. And as
>I haven't anything to do at all, the power supply of my test system broke
>today, so I'm now left with no chance of testing the new netboot release
>which I'm just preparing (the other systems I own are not suitable for
>testing, some are Alpha systems, or network servers). I will have to wait
>until I either fixed the power supply myself or bought a new one.
>
That's okay.  I'm currently having some problem generating ramdisk image from
Windows 95 boot floppy using my version of mknbi-dos that i have ported from
Linux to DOS (mknbi-dos4msdos).  The version is from 0.7.3.  It seems the
mknbi-dos4msdos generated ramdisk image from same Windows 95 boot floppy
will not work however if i generate the ramdisk image using mknbi-dos from
Linux environment (i have used "-f" option for both mknbi-dos4msdos and
mknbi-dos),
the generated ramdisk image works.  Anyways, i'm currently trying to analyze
the mknbi-dos code to see what the difference would be between running it
under Linux and DJGPP ported version.  Upto know i've only used
mknbi-dos4msdos
to generate RAM disk image for DOS boot floppy and DOS boot directory.  If you
could maybe offer some suggestion as to what i should look for in mknbi-dos
that may cause difference in generating ramdisk image from Windows 95 boot
floppy, i would really appreciate it.

At least i can successfully generate ramdisk image for Windows 95 boot floppy
under Linux.  There must be some compatibility difference between that part of
code running under Linux and DOS using DJGPP recompiled.

PS. Once again, i'm trying to port the 0.8.1 version of mknbi-dos to DOS
platform
    using the same successful method i used to 0.7.2 and 0.7.3.  However
    there seem to be a call to function called "nbmalloc()" which is not
    provided in DJGPP platform.  Previous to 0.8.1, "nbmalloc()" has not been
    used.  Is there somewhere i can find the implementation of "nbmalloc()" or
    can i replace the "nbmalloc()" with "mymalloc()" of 0.7.3 version?

Regards,

-mh

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