Mkisofs -b boot.img -no-emul-boot -boot-load-seg 1984 -boot-load-size 4 -iso-level 2 -J -joliet-long -l -D -relaxed-filenames -N -V CDOut -v -x. You can then edit the files in the newcd folder or add or delete files and the changes will be on the new bootable ISO image. This installs mkisofs and the sw folder can now be trashed.Ĭreate a folder (I'm naming the new folder newcd) and then mount the original PC ISO file and copy it's files over to the newcd folder and then place the newcd folder in the Applications folder. Start up the Terminal and then in the Terminal enter Look around in the unarchived cdrtools folder and find the sw folder and then place the sw folder in the Applications folder. Maybe the PPC version of mkisofs will work on Intel macs but you might have to find an Intel Mac version (see ). These instructions are for editing a bootable PC ISO file using OSX and keeping it PC bootable with a PPC version of mkisofs. Mkisofs can make a bootable PC ISO image from a folder on OSX but it needs to be installed first. Using hdiutil to edit PC bootable ISO images leaves the image non bootable.
It can also make an image of an ISO cd and can also burn an ISO image. If you want to edit a bootable PC ISO image or CD on OSX here is how to do it.ĭisk Utility can only mount ISO images as read only.
