add scripts for build

geninitrd.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/bash
+
+if [ $# != 2 ]
+then
+	echo "usage: $0 sysrootdir initrdfullpath"
+	exit 1
+fi
+
+if [ -z $1 ]
+then
+	echo "please pass a non empty sysroot"
+	exit 1
+fi
+
+if [ -z $2 ]
+then
+	echo "please pass a non empty initrd full path"
+	exit 1
+fi
+
+if [ -z "$(which fakeroot)" ]
+then
+	echo "script requires fakeroot to run, please install it."
+	exit 1
+fi
+
+fakeroot << EOF
+# chown to proper uids, keeping setuid bits
+find $1/ ! -type l -perm -04000 -exec chown -h 0:0 {} + \
+                                      -exec chmod u+s {} +
+find $1/ ! -type l ! -perm -04000 -exec chown 0:0 -h {} +
+
+find $1/home/astral ! -type l -perm -04000 -exec chown -h 1000:1000 {} + \
+                                      -exec chmod u+s {} +
+find $1/home/astral ! -type l ! -perm -04000 -exec chown -h 1000:1000 {} +
+
+# create initrd
+cd $1
+tar --format=ustar -cf $2 *
+EOF