Při startu PC (Ubuntu je nainstalováno na externím disku) si mohu zvolit operační systém v menu pro tuto volbu a občas se stane, že mi přibudou po dalším startu nové řádky v menu viz výpis z adresáře boot/grub ze souboru menu.lst:
## ## End Default Options ##
title Ubuntu 9.10, kernel 2.6.31-21-generic
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-21-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro quiet splash
initrd /boot/initrd.img-2.6.31-21-generic
quiet
title Ubuntu 9.10, kernel 2.6.31-21-generic (recovery mode)
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-21-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro single
initrd /boot/initrd.img-2.6.31-21-generic
title Ubuntu 9.10, kernel 2.6.31-20-generic
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-20-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro quiet splash
initrd /boot/initrd.img-2.6.31-20-generic
quiet
title Ubuntu 9.10, kernel 2.6.31-20-generic (recovery mode)
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-20-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro single
initrd /boot/initrd.img-2.6.31-20-generic
title Ubuntu 9.10, kernel 2.6.31-19-generic
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-19-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro quiet splash
initrd /boot/initrd.img-2.6.31-19-generic
quiet
title Ubuntu 9.10, kernel 2.6.31-19-generic (recovery mode)
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-19-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro single
initrd /boot/initrd.img-2.6.31-19-generic
title Ubuntu 9.10, kernel 2.6.31-17-generic
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-17-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro quiet splash
initrd /boot/initrd.img-2.6.31-17-generic
quiet
title Ubuntu 9.10, kernel 2.6.31-17-generic (recovery mode)
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-17-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro single
initrd /boot/initrd.img-2.6.31-17-generic
title Ubuntu 9.10, kernel 2.6.31-16-generic
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-16-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro quiet splash
initrd /boot/initrd.img-2.6.31-16-generic
quiet
title Ubuntu 9.10, kernel 2.6.31-16-generic (recovery mode)
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/vmlinuz-2.6.31-16-generic root=UUID=980571df-f4b5-4061-a14b-c68bd0f0d97c ro single
initrd /boot/initrd.img-2.6.31-16-generic
title Ubuntu 9.10, memtest86+
uuid 980571df-f4b5-4061-a14b-c68bd0f0d97c
kernel /boot/memtest86+.bin
quiet
### 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
Moje otázky jsou proč se tomu tak děje a zda mohu zbytečné řádky vymazat neboť se už menu nevejde na obrazovku.