root device for linux when booting from eltorito-cd

[Armin Herbert]

Hi,

I created a bootable CD with grub 0.95 according to 
http://www.gnu.org/software/grub/manual/grub.html#Making%20a%20GRUB%20bootable%20CD-ROM
 , 
which works fine so far (can boot the kernel).

In menu.lst, I need to specify a root device to the linux kernel, but 
the CD should be bootable from any device.

Can't grub give the kernel a hint? Why isn't it possible to make this:

root (cd)                       # works of course
kernel /vmlinuz root=(cd)       # (cd) is substituted with the device name

It would be very _very_ nice if this worked, because if it did, I 
wouldn't need to build an initrd. :-)

Thanks for hints in advance,


Yours


Armin Herbert