HOWMANY for Grub 2

One of the things lost in moving to Grub2 is the lack of the #HOWMANY option to limit the number of Kernels presented in the Grub Menu.  This was a great option especially if you dual boot otherwise every time a new Kernel is installed the Grub menu gets longer, and your default system does not load (as the default number is not updated).

Ages ago I found this item which fixes the problem.  It is a bit complex for a new user and that is a shame.  It also breaks when GRUB is updated (although I leave Grub alone when it asks).

To simplify things, you need to replace this line;

while [ "x$list" != "x" ] ; do

with these lines…..

if [ "x${GRUB_HOWMANY}" = "x" ] || ! [ "x`echo ${GRUB_HOWMANY} | sed 's/^[0-9]\+\(\.[0-9]\+\)\?$//'`" = "x" ] ;then
while ( [ "x$list" != "x" ] && ( [ "${GRUB_HOWMANY}" -eq "0" ] || [ "$found" -lt "${GRUB_HOWMANY}" ] )); do
  found=$((found + 1));

Grub really need to reimplement the #HOWMANY option and provide a simple GUI to set it. Still this solution works for me and if you have the same issues it may work for you too.

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