ftp.ntua.gr:/debian/dists/bullseye/main/installer-armhf/20210731/images/u-boot/A20-OLinuXino-MICRO/?C=S&O=D 
Icon  Name                                                                Last modified      Size  
[DIR] Parent Directory                                                                         -   
[   ] A20-OLinuXino-MICRO.sdcard.img.gz                                   31-Jul-2021 07:20  280K  
[   ] u-boot-sunxi-with-spl.bin.gz                                        31-Jul-2021 07:20  279K
Apache/2.2 Server at debian.noc.ntua.gr Port 80