Hello
i have just set up ubunut 8.04 with two kernels 2.6.24.16 and 2.6.24.19.
For my project i have to implement MPLS_linux module ,so i got kernel source release 2.6.15.1 then i patch it with the module above then i followed the steps of configuration ,compilation and install with the commands bellow :
make menuconfig
make && make mudules && make modules_install && make instal
so the following files were created in /boot:
config-2.6.15.1
System.map-2.6.15.1
vmlinux-2.6.15.1
for the initrd file i created it manually with the commande :
mkinitramfs -o /boot/initrd-2.6.15.1 2.6.15.1
so the file initrd-2.6.15.1 was addes in the /boot .
when i dispaly /boot/grub/menu.list it gives:
title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=3808efc2-598f-4b4e-80f6-dcf98d168ad8 ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-19-generic root=UUID=3808efc2-598f-4b4e-80f6-dcf98d168ad8 ro single
initrd /boot/initrd.img-2.6.24-19-generic

title Ubuntu 8.04.1, kernel 2.6.24-16-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=3808efc2-598f-4b4e-80f6-dcf98d168ad8 ro quiet splash
initrd /boot/initrd.img-2.6.24-16-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-16-generic (recovery mode)
root (hd0,0)
kernel /boot/vmlinuz-2.6.24-16-generic root=UUID=3808efc2-598f-4b4e-80f6-dcf98d168ad8 ro single
initrd /boot/initrd.img-2.6.24-16-generic

title Ubuntu 8.04.1, kernel 2.6.15.1
root (hd0,0)
kernel /boot/vmlinuz-2.6.15.1 root=UUID=3808efc2-598f-4b4e-80f6-dcf98d168ad8 ro quiet splash
initrd /boot/initrd-2.6.15.1
quiet

title Ubuntu 8.04.1, kernel 2.6.15.1 (recovery mode)
root (hd0,0)
kernel /boot/vmlinuz-2.6.15.1 root=UUID=3808efc2-598f-4b4e-80f6-dcf98d168ad8 ro single
initrd /boot/initrd-2.6.15.1

title Ubuntu 8.04.1, memtest86+
root (hd0,0)
kernel /boot/memtest86+.bin
quiet

Now ,for 1 week of research i was really obligated to write u this msg for help ,because i have just 2 weeks to get back a report while i m blocking in the first steps .
i will be very gratuful if u can help me it s really urgent
exuse me for my bad english
thank you