grub menu entry is not updated to 17.3 after upgrade from 17.2

1. I am now running Linux Mint 17.3 Rosa Cinnamon Edition 64-bit.

2. I had upgraded from Linux Mint 17.2 Rafaela Cinnamon Edition 64-bit to Linux Mint 17.3 Rosa Cinnamon Edition 64-bit using the upgrade available from the Update Manager. However, the Grub menu entry still shows Linux Mint 17.2. This still is the case even after running the command: "sudo update-grub". It is also not fixed by running: "sudo grub-install /dev/sda" or "sudo grub-install --recheck /dev/sda". I installed the new kernel 3.19.0-32-generic, and the menu still says 17.2.

3. Grub shows "Linux Mint 17.2 Cinnamon 64-bit" as a menu entry and boots to 17.3. There do not appear to be any other problems.

4. Grub should show "Linux Mint 17.3 Cinnamon 64-bit".

5. Grub always shows 17.2. Others have had this issue. See the comments section of "http://blog.linuxmint.com/?p=2955"

Additional Information

1. /etc/linuxmint/info contains the following
RELEASE=17.3
CODENAME=rosa
EDITION="Cinnamon 64-bit"
DESCRIPTION="Linux Mint 17.3 Rosa"
DESKTOP=Gnome
TOOLKIT=GTK
NEW_FEATURES_URL=http://www.linuxmint.com/rel_rosa_cinnamon_whatsnew.php
RELEASE_NOTES_URL=http://www.linuxmint.com/rel_rosa_cinnamon.php
USER_GUIDE_URL=help:linuxmint
GRUB_TITLE=Linux Mint 17.3 Cinnamon 64-bit

2. /etc/issue contains the following
Linux Mint 17.3 Rosa \n \l

3. /etc/lsb-release contains the following
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=17.3
DISTRIB_CODENAME=rosa
DISTRIB_DESCRIPTION="Linux Mint 17.3 Rosa"

4. /etc/os-release contains the following
NAME="Ubuntu"
VERSION="14.04.2 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.2 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"

5. /boot/grub/grub.cfg contains the following
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${saved_entry}"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 2b08c156-6222-44b5-ae14-f09c0ad7a747
else
  search --no-floppy --fs-uuid --set=root 2b08c156-6222-44b5-ae14-f09c0ad7a747
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=-1
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=3
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=3
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/06_mint_theme ###
set menu_color_normal=white/black
set menu_color_highlight=white/light-gray
### END /etc/grub.d/06_mint_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
 set gfxpayload="${1}"
 if [ "${1}" = "keep" ]; then
  set vt_handoff=vt.handoff=7
 else
  set vt_handoff=
 fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Linux Mint 17.2 Cinnamon 64-bit' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-2b08c156-6222-44b5-ae14-f09c0ad7a747' {
 recordfail
 savedefault
 load_video
 gfxmode $linux_gfx_mode
 insmod gzio
 insmod part_msdos
 insmod ext2
 set root='hd0,msdos6'
 if [ x$feature_platform_search_hint = xy ]; then
   search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 2b08c156-6222-44b5-ae14-f09c0ad7a747
 else
   search --no-floppy --fs-uuid --set=root 2b08c156-6222-44b5-ae14-f09c0ad7a747
 fi
 linux /boot/vmlinuz-3.19.0-32-generic root=UUID=2b08c156-6222-44b5-ae14-f09c0ad7a747 ro quiet splash $vt_handoff
 initrd /boot/initrd.img-3.19.0-32-generic
}
submenu 'Advanced options for Linux Mint 17.2 Cinnamon 64-bit' $menuentry_id_option 'gnulinux-advanced-2b08c156-6222-44b5-ae14-f09c0ad7a747' {
 menuentry 'Linux Mint 17.2 Cinnamon 64-bit, with Linux 3.19.0-32-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.19.0-32-generic-advanced-2b08c156-6222-44b5-ae14-f09c0ad7a747' {
  recordfail
 savedefault
  load_video
  gfxmode $linux_gfx_mode
  insmod gzio
  insmod part_msdos
  insmod ext2
  set root='hd0,msdos6'
  if [ x$feature_platform_search_hint = xy ]; then
    search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 2b08c156-6222-44b5-ae14-f09c0ad7a747
  else
    search --no-floppy --fs-uuid --set=root 2b08c156-6222-44b5-ae14-f09c0ad7a747
  fi
  echo 'Loading Linux 3.19.0-32-generic ...'
  linux /boot/vmlinuz-3.19.0-32-generic root=UUID=2b08c156-6222-44b5-ae14-f09c0ad7a747 ro quiet splash $vt_handoff
  echo 'Loading initial ramdisk ...'
  initrd /boot/initrd.img-3.19.0-32-generic
 }
 menuentry 'Linux Mint 17.2 Cinnamon 64-bit, with Linux 3.19.0-32-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.19.0-32-generic-recovery-2b08c156-6222-44b5-ae14-f09c0ad7a747' {
  recordfail
  load_video
  insmod gzio
  insmod part_msdos
  insmod ext2
  set root='hd0,msdos6'
  if [ x$feature_platform_search_hint = xy ]; then
    search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 2b08c156-6222-44b5-ae14-f09c0ad7a747
  else
    search --no-floppy --fs-uuid --set=root 2b08c156-6222-44b5-ae14-f09c0ad7a747
  fi
  echo 'Loading Linux 3.19.0-32-generic ...'
  linux /boot/vmlinuz-3.19.0-32-generic root=UUID=2b08c156-6222-44b5-ae14-f09c0ad7a747 ro recovery nomodeset
  echo 'Loading initial ramdisk ...'
  initrd /boot/initrd.img-3.19.0-32-generic
 }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_lupin ###
### END /etc/grub.d/10_lupin ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'Memory test (memtest86+)' {
 insmod part_msdos
 insmod ext2
 set root='hd0,msdos6'
 if [ x$feature_platform_search_hint = xy ]; then
   search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 2b08c156-6222-44b5-ae14-f09c0ad7a747
 else
   search --no-floppy --fs-uuid --set=root 2b08c156-6222-44b5-ae14-f09c0ad7a747
 fi
 knetbsd /boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
 insmod part_msdos
 insmod ext2
 set root='hd0,msdos6'
 if [ x$feature_platform_search_hint = xy ]; then
   search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 2b08c156-6222-44b5-ae14-f09c0ad7a747
 else
   search --no-floppy --fs-uuid --set=root 2b08c156-6222-44b5-ae14-f09c0ad7a747
 fi
 linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Vista (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-F004449604446228' {
 savedefault
 insmod part_msdos
 insmod ntfs
 set root='hd0,msdos1'
 if [ x$feature_platform_search_hint = xy ]; then
   search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 F004449604446228
 else
   search --no-floppy --fs-uuid --set=root F004449604446228
 fi
 parttool ${root} hidden-
 chainloader +1
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###