ftp.ntua.gr:/debian/dists/unstable/main/installer-arm64/20190410/images/u-boot/?C=S&O=A 
Icon  Name                                                         Last modified      Size  
[DIR] Parent Directory                                                                  -   
[   ] pine64_plus.img.gz                                           10-Apr-2019 21:55  298K  
[   ] pinebook.img.gz                                              10-Apr-2019 21:55  301K
Apache/2.2 Server at ftp.grnet.gr Port 80