Porque a lista de SOs do GRUB no ubuntu tem esse tanto de item?
title Ubuntu, kernel 2.6.20-17-generic
root (hd1,0)
kernel /boot/vmlinuz-2.6.20-17-generic root=UUID=0b54bf4c-9033-48d2-9b3a-a6949215fb3d ro quiet splash
initrd /boot/initrd.img-2.6.20-17-generic
quiet
savedefault
title Ubuntu, kernel 2.6.20-17-generic (recovery mode)
root (hd1,0)
kernel /boot/vmlinuz-2.6.20-17-generic root=UUID=0b54bf4c-9033-48d2-9b3a-a6949215fb3d ro single
initrd /boot/initrd.img-2.6.20-17-generic
title Ubuntu, kernel 2.6.20-15-generic
root (hd1,0)
kernel /boot/vmlinuz-2.6.20-15-generic root=UUID=0b54bf4c-9033-48d2-9b3a-a6949215fb3d ro quiet splash
initrd /boot/initrd.img-2.6.20-15-generic
quiet
savedefault
title Ubuntu, kernel 2.6.20-15-generic (recovery mode)
root (hd1,0)
kernel /boot/vmlinuz-2.6.20-15-generic root=UUID=0b54bf4c-9033-48d2-9b3a-a6949215fb3d ro single
initrd /boot/initrd.img-2.6.20-15-generic
title Ubuntu, memtest86+
root (hd1,0)
kernel /boot/memtest86+.bin