"problem with the El Torito configuration"

[cdmaker]

I am building a bootable image.

 

I create the ISO image, then tried to write it to the CD.

 

I get this error message:

 

There is a problem with the El Torito configuration.

 

Boot image: C:\bootcd.iso

size 1,228,800 bytes

Expected size: 1,474,560 bytes

 

The boot image is the wrong size for the media type.

 

I made a boot floppy for this laptop. I can boot from this floppy.

Then I copied the files into a directory on the laptop.

 

Then I used these files to build an ISO image.

 

I appreciate all your knowledge and help.

 

Thanks

[LIGHTNING UK!]

You need a RAW image of the bootable floppy disc.

 

Copying files + sticking them in a folder + making an image is not enough.

 

Put the disc in the floppy drive and use the 'Create Boot Image' option to do a raw read. This will only be available in NT based OS's though.

 

If it works, you'll end up with a file 1,474,560 bytes in size.

[cdmaker]

Since I do not have Win NT (I have Win ME) can I make a raw image on my hard drive from

my floppy using one of the utilities I see on the internet?

 

Can I use the Raw image to create the ISO file?

[LIGHTNING UK!]

Ah Win Me....that's a shame

 

Yes, you'll have to search the net for a tool that can create a raw image of a floppy disc. It'll end up being a file of 1.44mb in size.

'WinImage' is one tool I know of that can do it.

 

Once you have that bootable image, yes you can use that as the 'bootable image' in ImgBurn.

 

You will need to add at least 1 file/folder to the compilation before you can burn the disc though. Simply specifying the bootable image part is not sufficient.

[cdmaker]

Even I wonder why I still use Win ME.

Do you think my DELL Dimension XPST500 with 256MB can run XP?

 

 

BOOT SUCCESS.

 

I found rawread.exe and rawrite.exe on the net.

 

I used rawread.exe to create RAWBOOT.IMG from my floppy

 

I then used imgburn to create the boot image.

 

Reboot and success. I have my DOS CD and access to C:

 

You mentioned another file is needed. Can you explain in more detail. Thanks.

 

 

Also, what inspired all of this was an article by Fred Langa about booting a DOS system

on a CD.

 

He said that I could have floppy emulation as A: plus files on the CD as device D:

 

That is, write the CD with the floppy image RAWBOOT.IMG

and add another directory say TEST. Additional programs go in this directory. Such as

disktest, memory test, etc.

 

Here is the reference to the article>>>

http://www.informationweek.com/story/showA...icleID=10818064

 

Have you seen this done? Do you have any suggestions?

[LIGHTNING UK!]

The program won't let you build an image or burn the disc (on-the-fly) if

you don't add a file/folder to the 'Source' box.

 

That doesn't sound like it'll be a problem here because the 'plus file on the CD as device D:' would cover that. Those files are what you'd add to the cd compilation (i.e. the 'Source' box).

 

Oh and yes I've seen it done before and it's quite usefull once you've got your floppy boot image just right. Just be sure to have a bootable floppy that actually loads your cdrom drivers! If you don't, that 'D:' drive will never exist