setDirty(false);
	public Superblock(byte src[]) throws FileSystemException {		data = new byte[src.length];		System.arraycopy(src, 0, data, 0, src.length);					//check the magic :)		if(getMagic() != 0xEF53)			throw new FileSystemException("Not ext2 superblock ("+getMagic()+": bad magic)");	}