Install other distro without booting CD
I am walking thin ice here: I have this ancient PC, that has so old BIOS who doesn't know how to boot from CD (but it has a CD drive). It has also floppy drive, but I don't have any floppies what to feed there, so for time being let's assume the floppy drive doesn't exist. It's got network PCMCIA card.
I have managed to install on it linux (there was Win98 before), it was quite a journey - I first installed boot manager (Smart Boot Manager) that would let to boot from CD (what a wonderful thing it is). That, in turn, let me install Damn Small Linux on the box.
But the story gets a bit sad here. Since I had to delete and reformat partitions, the MBR where there was Smart Boot Manager, was replaced by GRUB. As far as I know, GRUB, once it's loaded, does not give option to boot from CD. And I experience some strange problems when trying to install the Smart Boot Manager again (this time from linux) - even superuser gets "Permission denied" error message.
So basically now I have no way to install other Linux distro (Damn Small Linux is smart but with ugly looks. I want to try Xcfe-d DSL, wich comes under name Luitlinux.
So, my question is - is there any way how to boot from CD drive, or ISO image, without rebooting PC? If not, then the only alternative is to find a floppy and burn the Smart Boot Manager on it, boot from that floppy, and then boot from whatever CD.