File Content: zz-update-grub #! /bin/sh set -e which update-grub >/dev/null 2>&1 || exit 0 if type systemd-detect-virt >/dev/null 2>&1 && systemd-detect-virt --quiet --container; then exit 0 fi set -- $DEB_MAINT_PARAMS mode="${1#\'}" mode="${mode%\'}" case $0:$mode in # Only run on postinst configure and postrm remove, to avoid wasting # time by calling update-grub multiple times on upgrade and removal. # Also run if we have no DEB_MAINT_PARAMS, in order to work with old # kernel packages. */postinst.d/*:|*/postinst.d/*:configure|*/postrm.d/*:|*/postrm.d/*:remove) if [ -e /boot/grub/grub.cfg ]; then exec update-grub fi ;; esac exit 0 Submit