[Fedora-livecd-list] boot livecd iso?

[Alan Pevec]

On Mon, May 11, 2009 at 12:09 AM, don fong <dfong at dfong.com> wrote:
> question: how can i boot the livecd distro from a
> hard disk partition, hopefully with the persistent
> option?  i have found a lot of pages
> describing how to do this with a USB stick, but
> i have not been able to find clear instructions on
> how to do the equivalent thing with a regular
> disk partition.
>
> i have the fedora livecd iso image file on my disk.
> i can mount it under linux.  is there a way to
> boot the iso file directly, without wasting a CD?
>
> or to make another disk partition boot the livecd distro?

You need a separate partition if your rootfs is on LVM since livecd
initrd doesn't start LVM.
Loop mount the ISO and copy isolinux/vmlinuz0 and isolinux/initrd0.img
to /boot and LiveOS folder to / (or top-folder of the separate
partition)
Then add grub entry for livecd (assuming separate /boot partition and
sda2 partition with /LiveOS)
    kernel /vmlinuz0 ro root=/dev/sda2
    initrd /initrd0.img