With some of the older Cores (probably Core 141) Borgbackup stops working with the following error: pkg_resources.DistributionNotFound: The ‘msgpack-python!=0.5.0,!=0.5.1,!=0.5.2,!=0.5.3,!=0.5.4,!=0.5.5,<=0.5.6,>=0.4.6’ distribution was not found and is required by borgbackup . Even 'python3-msgpack' has been properly installed, the problem can be possibly the 'Updates Under The Hood' (switch to Pyhton3 in the core system) from Core 141. By increasing the PAK_VER this problem can be solved. Patch is on the way. Best, Erik Bug has been triggered by the community --> https://community.ipfire.org/t/borgbackup-msgpack-dependency/1855 .
Patch has been send --> https://patchwork.ipfire.org/patch/2929/ . Best, Erik
https://git.ipfire.org/?p=ipfire-2.x.git;a=commit;h=086c09eefb72449ef39517e3586470ebef5e7276
https://blog.ipfire.org/post/ipfire-2-25-core-update-145-released