My df -h
shows that I am using 611.4MB out of 820.6MB in /opt
…
I did a du -ax /opt | sort -nr
, the biggest file is indeed system.img, and the /opt/qt5
folder has a total size of ~230MB. The biggest file under /opt/qt5
is /opt/qt5/lib/libQt5WebEngineCore.so.5.15.17
, which is around 80MB, like one-third of the whole /opt/qt5
.
I do not recall installing additional Qt5 libraries / modules by myself - I seldom do such kind of things. Still puzzled…