ftp.ntua.gr:/debian/dists/oldstable-proposed-updates/main/installer-armhf/20210731+deb11u6/images/u-boot/Firefly-RK3288/ 
Icon  Name                                                                                          Last modified      Size  
[DIR] Parent Directory                                                                                                   -   
[   ] Firefly-RK3288.sdcard.img.gz                                                                  12-Dec-2022 21:03  315K  
[   ] idbloader.img.gz                                                                              12-Dec-2022 21:03   32K  
[   ] u-boot.img.gz                                                                                 12-Dec-2022 21:03  273K
Apache/2.2 Server at debian.noc.ntua.gr Port 80