public GroupDescriptor(byte src[]) { data = new byte[src.length]; System.arraycopy(src, 0, data, 0, src.length);
public GroupDescriptor(int groupNr, Ext2FileSystem fs) throws IOException{  byte[] blockData = fs.getBlock( fs.getSuperblock().getFirstDataBlock() + 1); byte[] data = new byte[GROUPDESCRIPTOR_LENGTH]; System.arraycopy(blockData, 0, data, 0, GROUPDESCRIPTOR_LENGTH); this.groupNr = groupNr; this.fs = fs; setDirty(false); log.setLevel(Level.DEBUG);
	public GroupDescriptor(byte src[]) {		data = new byte[src.length];		System.arraycopy(src, 0, data, 0, src.length);	}