ftp.ntua.gr:/debian/dists/sid/main/installer-armhf/20190410/images/u-boot/Firefly-RK3288/ 
Icon  Name                                                           Last modified      Size  
[DIR] Parent Directory                                                                    -   
[   ] Firefly-RK3288.sdcard.img.gz                                   10-Apr-2019 21:55  265K  
[   ] u-boot.rksd.gz                                                 10-Apr-2019 21:55  265K
Apache/2.2 Server at debian.noc.ntua.gr Port 80