PREUN
/bin/sh
if [ -x /usr/sbin/bootloader-config ]; then /usr/sbin/bootloader-config --action remove-entry --label memtest-1.60 fi
POSTIN
/bin/sh
if [ -x /usr/sbin/bootloader-config ]; then /usr/sbin/bootloader-config --action add-entry --label memtest-1.60 --image /boot/memtest-1.60.bin fi