[Qgis-user] Installation of QGIS on Ubuntu 22.4 LTS (Jammy) seems to use old library versions from 20.04 LTS (Focal)

[Schoemans Maxime]

Hi,


This is my first email on the qgis-user mailing list, I hope this is the 
correct place to send my questions.

I have recently upgraded Ubuntu twice (first 18.04 -> 20.04, then 20.4 
-> 22.04).
I am now trying to install QGIS 3.34.3 in Ubuntu 22.4 LTS (Jammy), but I 
seem to have many issues of the form:

/usr/lib/qgis/crssync: error while loading shared libraries: 
libqhull_r.so.7: cannot open shared object file: No such file or directory

This specific error was related to libqhull 7, which is the version for 
'Focal' (20.04), while 'Jammy' (22.04) uses libqull 8 (see 
https://pkgs.org/search/?q=libqhull).
After manually downloading and installing libqhull 7 from pkgs.org, I am 
now hitting a similar error for another library:

/usr/lib/qgis/crssync: error while loading shared libraries: 
libwebp.so.6: cannot open shared object file: No such file or directory

Again, the libwebp library is using the 'Focal' version (libwebp 6), 
instead of the 'Jammy' version (libwebp 7).
I suspect I will hit more similar errors if I keep manually installing 
the requested 'older' library versions.

My question is thus: Am I doing something wrong, or is this normal and I 
should continue manually downloading previous library versions as needed?


Best regards,

Maxime Schoemans