diferencias entre headers

[rockobop]

hola a todos la consulta es la siguiente

cual es la diferencia entre estos dos headers

2.6.17-10-generic

2.6.17-10-i386

por q en mi grub tengo lo siguientes

......
..........
..................

## ## End Default Options ##

title Ubuntu, kernel 2.6.17-10-386
root (hd0,5)
kernel /boot/vmlinuz-2.6.17-10-386 root=/dev/hda6 ro quiet splash locale=es_ES
initrd /boot/initrd.img-2.6.17-10-386
quiet
savedefault
boot

title Ubuntu, kernel 2.6.17-10-386 (recovery mode)
root (hd0,5)
kernel /boot/vmlinuz-2.6.17-10-386 root=/dev/hda6 ro single
initrd /boot/initrd.img-2.6.17-10-386
boot

title Ubuntu, kernel 2.6.17-10-generic
root (hd0,5)
kernel /boot/vmlinuz-2.6.17-10-generic root=/dev/hda6 ro quiet splash locale=es_ES
initrd /boot/initrd.img-2.6.17-10-generic
quiet
savedefault
boot

title Ubuntu, kernel 2.6.17-10-generic (recovery mode)
root (hd0,5)
kernel /boot/vmlinuz-2.6.17-10-generic root=/dev/hda6 ro single
initrd /boot/initrd.img-2.6.17-10-generic
boot

title Ubuntu, memtest86+
root (hd0,5)
kernel /boot/memtest86+.bin
quiet
boot

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title Other operating systems:
root


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/hda1
title Microsoft Windows XP
root (hd0,0)
savedefault
makeactive
chainloader +1