- ok(!(system("mknod chr c 2 3")>>8),"create chrdev");
- ok(!(system("mknod blk b 2 3")>>8),"create blkdev");
+ ok(!mknod($_point.'/chr', 0600|S_IFCHR, makedev(2,3)),"create chrdev");
+ ok(!mknod($_point.'/blk', 0600|S_IFBLK, makedev(2,3)),"create blkdev");