I have a ISO that I’ve modified and slipstream’d with XP SP1a, and I want to burn this down to a CD that’s bootable. All of the El Torito files are there (comes that way from MS) yet the CD will not boot. I get the standard “Press any key to boot from CD…” message on a few boxes, but they all either lock up or refuse to boot off the CD. Here’s the process I followed :
- Download XP ISO from MSDN.
- Use WinISO to extract the i386 directory and slipstream it.
- Put in the SIF file for unattended install.
- Place the i386 directory back in the ISO with WinISO.
- Go to Nero; File -> Burn Image; Pick the new ISO.
- File burns down in a few minutes.
- Try to boot from that CD – no dice.
If it matters, I’m burning at 40x with 48x media.
Is there a step I’m missing to tag the CD as bootable? Maybe I need to add some files to the image. I didn’t think that would be necessary since MS includes the El Torito files automatically.