postrmd-slash-initramfs-tools

version="$1"
bootopt=""

# passing the kernel version is required
if [ -z "${version}" ]; then
        echo >&2 "W: initramfs-tools: ${DPKG_MAINTSCRIPT_PACKAGE:-kernel package} did not pass a version number"
        exit 0
fi

# exit if custom kernel does not need an initramfs
if [ -n "${KERNEL_PACKAGE_VERSION}" ] && [ "$INITRD" = 'No' ]; then
        exit 0
fi

# absolute file name of kernel image may be passed as a second argument;
# create the initrd in the same directory
if [ -n "$2" ]; then
        bootdir=$(dirname "$2")
        bootopt="-b ${bootdir}"
fi

# avoid running multiple times
if [ -n "$DEB_MAINT_PARAMS" ]; then
        eval set -- "$DEB_MAINT_PARAMS"
        if [ -z "$1" ] || [ "$1" != "remove" ]; then
                exit 0
        fi
fi

# delete initramfs
INITRAMFS_TOOLS_KERNEL_HOOK=1 update-initramfs -d -t -k "${version}" ${bootopt} >&2