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Re: [Trinux-talk] iso bootable cd image
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From: <tb...@ti...> - 2001-11-10 17:45:02
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Sometimes it is better to take what someone else has done, and just modify it. Look at the iso image for Trinux. There are some important components in the root of the CD, including the boot.img file and catalog file. Also, you can search for the keyword, El Torito or ElTorito, which is the moniker delegated to the "trick" of making a CD bootable. In a nutshell, the trick is to create an image of a boot floppy, and fool the OS into thinking it is booting the floppy. Crude, but it works. I think there is also a readme file in most Linux distributions. Try /usr/doc/HOWTO/Bootable-CDROM or something like that. If you just need the steps to re-create the iso file, then do this... cd /tmp mkdir myiso mount /dev/cdrom /mnt cd /mnt find . -depth -print | cpio -pmduv /tmp/myiso cd /tmp/myiso ## Make any changes in this branch you want to. mkisofs -v -J -o ../myiso.iso -b boot.img . then burn the iso image to your CD and test. Unfortunately, much of the boot process is controlled in the boot.img file, which is an image of a floppy disk, which is another task. But wait, there is more... The real germ of the boot process is contained in the initrd.gz file, which is contained in the boot.img disk image. initrd.gz is a compressed filesystem with some executables, libraries and startup scripts. On Sat, 10 Nov 2001, windham lance wrote: > How does one go about making a bootable cd image... sorry for my > ignorance but i've looked on the site and trinux talk for some sort of > help and am at the end of my rope... any help is appreciated. > thank you , > MstrHelix > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp > > > _______________________________________________ > Trinux-talk mailing list > Tri...@li... > https://lists.sourceforge.net/lists/listinfo/trinux-talk > -- -------------------- Timothy Burt Internet Specialist |
