ftp.ntua.gr:/debian/dists/buster/main/installer-armhf/current/images/u-boot/Firefly-RK3288/?C=S&O=D 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] Firefly-RK3288.sdcard.img.gz                                     07-Sep-2022 01:57  265K  
[   ] u-boot.rksd.gz                                                   07-Sep-2022 01:57  265K
Apache/2.2 Server at debian.noc.ntua.gr Port 80