Is it possible to boot from rescue CD via the network?

For example - I have a machine that can PXE boot, but does not have a CDROM in it. Would it be possible to boot from the rescue "cd" over the network instead?

I've tried setting up a kickstart style boot for the rescue CD using YAM (using the vmlinuz, etc from the cd), but I get a kernel panic after it detects the hard disks.

Did you get any responses?

No - but I figured it out after looking at this:

http://www.vmware.com/vmtn/appliances/directory/371

so put this in your /tftpboot/pxelinux.cfg/default file:
label rescue
kernel vmlinuz
append initrd=initrd.img ksdevice=eth0 rescue devfs=nomount ramdisk_size=20480 ks=http://<server>/ks/rescue.cfg

and then have this in the ks/rescue.cfg file:

lang en_US
langsupport en_US
keyboard us

firewall --disabled
selinux --disabled

text
rescue

network --bootproto dhcp
url --url http://<server>/<iso location>

w/ FC6 (maybe FC5) i think you can use ksdevice=link which will boot off of the nic w/ a link (so you don't have to worry about the device name)

<iso location> is where ever the Fedora install is mounted/available - you could do this w/ the other methods too i think.