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Add new drivers to NW6.5SP8 overlay DVD?

Hi,

I tried hard the last days to add some newer drivers to the existing NW6.5SP8 overlay DVD. Adding the drivers to the DVD is not the problem, but after burnning the DVD it will not boot.
I created the remasterd overlay DVD with different software (MagicISO, UltraISO and CDBurnerXP) using the bootsector of the official NW6.5SP8 DVD.

The problem is always seen as a red error message starting installation with the new DVD or a server without any messages (black screen) after start booting from the DVD.

Any idea how the overlay DVD have to be created for proper work?

Thanx
Joe
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airport-nue,

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I have never been able to figure out how exactly NetWare 6.5 boots from the installation CD or DVD. However what works is if you extract the boot diskette image from a NW51SP8 or NW60SP5 overlay CD, that boot image can also be used for a NetWare 6.5 installation.
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Update:

I have done some digging and while I haven't yet fully tested everything,
I think I have found the solution:

The procedure of the following TID should work for NetWare 6.5 boot CDs:
http://www.novell.com/support/viewContent.do?externalId=3857141

Explanation:

NetWare 6.5 uses a system similar to Linux to boot from CD. There is a
generic boot loader that loads the OS image into memory and then this
image is executed. In the case of NetWare, this "OS image" is NWLOADER.SYS
and the boot code on the CD has a pointer to the place on the disk where
it can file this file.
Now when you burn a new CD using the same image, it no longer works
because the location of nwloader.sys may change and so that boot loader
can no longer load the correct code into memory. That's why you need a
Linux based burning tool which along with the boot code generates the
table telling the boot code where to find the OS image to load into memory.

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Marcel Cox
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Hi.

>The procedure of the following TID should work for NetWare 6.5 boot CDs:
>http://www.novell.com/support/viewContent.do?externalId=3857141



Thanks!

Is there a tool to do the same using a Win PC as well?


<cite>
Need to Linux desktop ....


Obtain a reasonably recent ISO image.
Mount it on the loopback interface. (mount -o loopdirectory_filename_)
copy all files recursively into another directory. (cp -rdirectory_/* _newdir)
change all files rw ( chmod --recursive a+rw _newdir_/* )
execute the following command in newdir ( find | grep"TRANS.TBL" | xargs rm )
Then replace files needed on CD, either in the corresponding directory on the CD, or
files which go into SYS: by copying them into \NWUPDATE\SYS\correspondingdir, for
example \NWUPDATE\SYS\SYSTEM\PROXY.NLM goes into SYS:\SYSTEM\PROXY.NLM These files
are laid down directly after the SYS image is restored, before ANY OTHER NLM is
executed.
then use k3B, make a Data CD. Name = ACC_GW_3, allow long names in the options.
As boot loader, select NO EMULATION, file is STARTUP/NWLOADER.SYS
<cite>




Regards, Rudi.
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Rudolf Thilo wrote:

>Is there a tool to do the same using a Win PC as well?


There are a number of tools that can be used to extract the files form an
ISO file. However I'm not aware of a Windows based burning tool that can
create a Linux like boot CD.

--
Marcel Cox
http://support.novell.com/forums
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Hi Marcel.

>However I'm not aware of a Windows based burning tool that can create a
>Linux like boot CD.


That's what I wanted to ask about, thought so.

BTW: No clue, what should be "linux like" in simply pointing to the right sector for
the boot code. (Windooze...)




Thanks, Rudi.
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Rudolf Thilo wrote:

>BTW: No clue, what should be "linux like" in simply pointing to the right
>sector for
> the boot code. (Windooze...)


In Windows environments, you will typically find the following 3 boot
methods for CD;

- floppy disk emulation. The CD contains an image of a bootable floppy
disk and the BIOS emulates a floppy drive based on that image

- hard disk emulation. Similar to the floppy disk method except that the
CD contains a hard disk image

- no emulation
The CD contains a boot block of a certain size (the specifications allow
the size to vary). The BIOS loads this boot block into memory and then
executes it. This method is for example used by Windows installation CDs.
The boot block in this case is I think something liek 2 kb and has the
necessary logic to find the required files on the CD to boot Windows. So
with just preserving this boot block, you can modify the remainer of the
Windows CD and it remains bootable

I might be wrong, but it is my understand that for Linux, the typical boot
process is as follows:
It also uses the "no emulation" mode, but the boot block consists of some
elementary code plus a table containing the necessary pointers to locate
the kernel image to load into memory. This means that for each different
CD image, the boot block is poentially different because the location of
the kernel file varies. So the burning program does not just have to write
the boot block, but it also needs to know how to modify it. The NetWare
boot works similarly. The only difference that there is no Linux kernel
file to load into memory, but rather the file nwloader.sys.

--
Marcel Cox
http://support.novell.com/forums
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