x-warrior@xwarrior-Inspiron-N5010:~$ sudo blkid
[sudo] password for x-warrior:
/dev/sda1: UUID="5CD834A2D8347C78" TYPE="ntfs"
/dev/sda2: UUID="54d8007c-00d9-4a80-8796-4220660d5605" TYPE="ext4"
/dev/sdb1: LABEL="System Reserved" UUID="DA44E11E44E0FE5F" TYPE="ntfs"
/dev/sdb2: UUID="0C4EEF254EEF0674" TYPE="ntfs"
/dev/sdb5: UUID="b0f4b341-a281-4bb5-9e2a-e11650bd388d" TYPE="swap"
/dev/sdb6: UUID="4CEA33EB01757069" TYPE="ntfs"
/dev/sdb7: UUID="33274bf6-4d26-4456-a6e8-c29ef24702fb" TYPE="ext4"

x-warrior@xwarrior-Inspiron-N5010:~$ sudo update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.8.0-19-generic
Found initrd image: /boot/initrd.img-3.8.0-19-generic
Found memtest86+ image: /boot/memtest86+.bin
Found Windows 7 (loader) on /dev/sda1
Found Windows 7 (loader) on /dev/sdb1
Found Ubuntu 12.10 (12.10) on /dev/sdb7


grub.cfg

menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-54d8007c-00d9-4a80-8796-4220660d5605' {
recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd0,msdos2'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  54d8007c-00d9-4a80-8796-4220660d5605
	else
	  search --no-floppy --fs-uuid --set=root 54d8007c-00d9-4a80-8796-4220660d5605
	fi
	linux	/boot/vmlinuz-3.8.0-19-generic root=UUID=54d8007c-00d9-4a80-8796-4220660d5605 ro   quiet splash $vt_handoff
	initrd	/boot/initrd.img-3.8.0-19-generic
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-54d8007c-00d9-4a80-8796-4220660d5605' {
	menuentry 'Ubuntu, with Linux 3.8.0-19-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.8.0-19-generic-advanced-54d8007c-00d9-4a80-8796-4220660d5605' {
	recordfail
		load_video
		gfxmode $linux_gfx_mode
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  54d8007c-00d9-4a80-8796-4220660d5605
		else
		  search --no-floppy --fs-uuid --set=root 54d8007c-00d9-4a80-8796-4220660d5605
		fi
		echo	'Loading Linux 3.8.0-19-generic ...'
		linux	/boot/vmlinuz-3.8.0-19-generic root=UUID=54d8007c-00d9-4a80-8796-4220660d5605 ro   quiet splash $vt_handoff
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-3.8.0-19-generic
	}
	menuentry 'Ubuntu, with Linux 3.8.0-19-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.8.0-19-generic-recovery-54d8007c-00d9-4a80-8796-4220660d5605' {
	recordfail
		load_video
		insmod gzio
		insmod part_msdos
		insmod ext2
		set root='hd0,msdos2'
		if [ x$feature_platform_search_hint = xy ]; then
		  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 --hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2  54d8007c-00d9-4a80-8796-4220660d5605
		else
		  search --no-floppy --fs-uuid --set=root 54d8007c-00d9-4a80-8796-4220660d5605
		fi
		echo	'Loading Linux 3.8.0-19-generic ...'
		linux	/boot/vmlinuz-3.8.0-19-generic root=UUID=54d8007c-00d9-4a80-8796-4220660d5605 ro recovery nomodeset
		echo	'Loading initial ramdisk ...'
		initrd	/boot/initrd.img-3.8.0-19-generic
	}
}