add scripts for build

gendisk.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/bash
+
+if [ $# != 3 ]
+then
+	echo "usage: $0 size sysrootdir diskname"
+	exit 1
+fi
+
+if [ -z $2 ]
+then
+	echo "please pass a non empty sysroot"
+	exit 1
+fi
+
+if [ -z $3 ]
+then
+	echo "please pass a non empty disk name"
+	exit 1
+fi
+
+if [ -z "$(which fakeroot)" ]
+then
+	echo "script requires fakeroot to run, please install it."
+	exit 1
+fi
+
+
+PATH="/usr/sbin/:$PATH" fakeroot << EOF
+# create image
+truncate $3 -s $1
+
+# chown to proper uids, keeping setuid bits
+find $2/ ! -type l -perm -04000 -exec chown -h 0:0 {} + \
+                                      -exec chmod u+s {} +
+find $2/ ! -type l ! -perm -04000 -exec chown 0:0 -h {} +
+
+find $2/home/astral ! -type l -perm -04000 -exec chown -h 1000:1000 {} + \
+                                      -exec chmod u+s {} +
+find $2/home/astral ! -type l ! -perm -04000 -exec chown -h 1000:1000 {} +
+
+# create filesystem and copy files into image
+mkfs.ext2 -O ^dir_index $3 -d $2
+EOF