Post #62 from drs305 fixed the fleeting message for me too, 12.04, grub 1.99, GRUB_TERMINAL[_OUTPUT]=console, with force menu to show, i.e. no submenu, with help of GRUB_TIMEOUT=2, and commenting these 4 lines near the end of /etc/grub.d/10_linux:
# if [ "$list" ] && ! $in_submenu; then
# echo "submenu \"Previous Linux versions\" {"
# in_submenu=:
# fi
Post #62 from drs305 fixed the fleeting message for me too, 12.04, grub 1.99, GRUB_TERMINAL[ _OUTPUT] =console, with force menu to show, i.e. no submenu, with help of GRUB_TIMEOUT=2, and commenting these 4 lines near the end of /etc/grub. d/10_linux:
# if [ "$list" ] && ! $in_submenu; then
# echo "submenu \"Previous Linux versions\" {"
# in_submenu=:
# fi