kernel: added a prepost-action script to create the initramfs.

--HG--
extra : convert_revision : 50026c51a815fafbe655d39c8fa3dd31dffd5846

templates/kernel.prepost-action

@@ -0,0 +1,39 @@
+#!/bin/sh -e
+
+export PATH="/bin:/sbin:/usr/bin:/usr/sbin"
+
+# $1 = chrootdir
+# $2 = action
+# $3 = pkgname
+# $4 = version
+
+case "$2" in
+preinst)
+	;;
+postinst)
+	echo "Running $3-$4 post-installation command..."
+	if [ "$1" = "NOTSET" ]; then
+		if $(mount|grep "^/proc" 2>&1 >/dev/null); then
+			mntproc_cmd="mount -t proc proc /proc"
+			umntproc_cmd="umount /proc"
+		fi
+		initramfs_cmd="update-initramfs"
+	else
+		mntproc_cmd="chroot $1 mount -t proc proc ./proc"
+		umntproc_cmd="chroot $1 umount ./proc"
+		initramfs_cmd="chroot $1 update-initramfs"
+	fi
+
+	if [ ! -f ./var/lib/initramfs-tools/$4 ]; then
+		initramfs_cmd="$initramfs_cmd -c -k $4"
+	else
+		initramfs_cmd="$initramfs_cmd -u -k $4"
+	fi
+
+	${mntproc_cmd}
+	${initramfs_cmd}
+	${umntproc_cmd}
+	;;
+esac
+
+exit 0