[CentOS-devel] Net Install ISO
james-p at moving-picture.com
Wed Oct 10 12:33:45 UTC 2012
Chandana De Silva wrote:
> Hello All,
> I need to create a slightly modified Centos 6.3 Net Install ISO. The
> modification is trivial, (a default kickstart in isolinux.cfg). I have
> created a new ISO by loopback mounting the original, copying to a new
> directory, editing and using mkisofs, and it works as expected.
> This is how I made the new ISO:
> cd my_install_directory
> sudo mkisofs -o ~/centos63-ks.iso -b isolinux/isolinux.bin -c
> isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J
> -v -T .
> However, I an unable to copy this new ISO into a USB disk using dd, in
> the same manner as the original net install iso. I believe this is
> because the new ISO does not include an MBR. How do I include an MBR in
> the new ISO, so that it can be transferred to a USB disk via DD, in the
> same way as the original ?
I believe you need to run 'isohybrid' on the new ISO - e.g. in your case:
isohybrid is part of the syslinux package
Also, you might want to run "hardlink" on your 'my_install_directory'
before running mkisofs - this will make the resulting ISO image a bit
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