ftp.ntua.gr:/debian/dists/testing/main/installer-armhf/current/images/u-boot/Firefly-RK3288/?C=M&O=A 
Icon  Name                                                              Last modified      Size  
[DIR] Parent Directory                                                                       -   
[   ] Firefly-RK3288.sdcard.img.gz                                      07-Jun-2023 04:01  339K  
[   ] idbloader.img.gz                                                  07-Jun-2023 04:01   33K  
[   ] u-boot.img.gz                                                     07-Jun-2023 04:01  297K
Apache/2.2 Server at debian.noc.ntua.gr Port 80