POSTIN

/bin/sh

if [ -z "$DURING_INSTALL" -a "$1" = 1 ] ; then
    /usr/sbin/bootloader-config --action rebuild-initrds

    # remove nokmsboot if ok
    /sbin/display_driver_helper --setup-boot-kms &>/dev/null || :
fi

POSTUN

/bin/sh

if [ "$1" = 0 ] ; then
    # add nokmsboot if needed
    /sbin/display_driver_helper --setup-boot-kms &>/dev/null || :
fi