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editing a bootable ISO - Printable Version

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editing a bootable ISO by Choli on 05-04-2004 at 12:44 PM

ok... I have an ISO image of a bootable CD and want to edit it (add more files) but without loosing the boot ability. I know this is possible with programs like WinISO but I also want that the program I'd use does not modify where the current files are, ie: don't modify the LBA address of the files (because sometimes when you boot from the CD, the boot code tries to access some files by its LBA address so I need them saty phisically at the same place).


It also would be great if I could change/set the LBA of the files if I want to. The best would be a program that let me have total control over the TOC of the CD and the placement of the files, folders & file systems. However, what I've said in this paragraph isn't strictly needed.


Do you know any program that can do that?
Thanks ;)


RE: editing a bootable ISO by Sunshine on 05-04-2004 at 01:49 PM

I think adding more files automaticly means that the bootingpart changes with it if needed (if not the booting would do no good cuz it can't find the files). If u boot an it can't find the files it means the bootpart hasn't been changed properly, therefor u need to burn ur ISO image to a new CD after u altered it.

A program that lets u choose the LBA urself? I 'don't know any that let's u do that (but then again i only use WinISO and haven't tried any other program to make ISO's) maybe somebody else has tested another program?


RE: editing a bootable ISO by Anubis on 05-04-2004 at 03:22 PM

I believe WinRAR can open ISO files and edit them...also you should loose the boot ability is you don't edit the AUTORUN.inf file...if there is no AUTORUN.inf file and it doesn't boot after editing simply write one...


RE: editing a bootable ISO by Menthix on 05-04-2004 at 05:48 PM

autorun.inf takes care of autorun, which is a Windows feature that allows you to automatically launch a program from the cd once you inserted the CD in a player.
I think Choli means boot as in bootable cd, which is an OS independent feature that allows you to boot up your PC itself without use of any files or OS that already is installed on the PC.

A bootable cd is unfortunally not created with a file on the CD like autorun does. But it has special data written onto the CD itself.

Maybe UltraISO or MagicISO can help you out, although i'm not sure how they handle the exact position of the original files.
UltraISO: http://www.ezbsystems.com/ultraiso/
MagicISO: http://www.magiciso.com/


RE: editing a bootable ISO by Choli on 05-04-2004 at 07:39 PM

quote:
Originally posted by Sunshine
I think adding more files automaticly means that the bootingpart changes with it if needed (if not the booting would do no good cuz it can't find the files).
some boot parts are made in suck a way that they find files by looking at a predefined LBA address, and any program can know that (and so they can't modify them) THat's why I need one that preserves the LBA addresses.
quote:
Originally posted by MenthiX
autorun.inf takes care of autorun, which is a Windows feature that allows you to automatically launch a program from the cd once you inserted the CD in a player.
I think Choli means boot as in bootable cd, which is an OS independent feature that allows you to boot up your PC itself without use of any files or OS that already is installed on the PC.
yes yes yes...
people: note that i don't mean an autorun CD, but a CD you put in your cd-drive, start the PC and it loads (like the Win installation CDs, Norton antivirus one, etc...)
quote:
Originally posted by MenthiX
Maybe UltraISO or MagicISO can help you out, although i'm not sure how they handle the exact position of the original files.
UltraISO: http://www.ezbsystems.com/ultraiso/
MagicISO: http://www.magiciso.com/
thanks MenthiX ;). I'll give a try to those programs, however I think some time ago I tested them without any luck. I'm not sure, tho.


Anyway, anyone else knows any other program?