I wanted to run some BOINC project on my mostly idle router Turris Omnia (CPU: Marvell Armada 385, dual-core 1.6 GHz; open source Turris OS, based on OpenWrt - for more see https://doc.turris.cz/doc/_media/omnia/omnia_datasheet_1gb_rgb.pdf).

I installed Ubuntu Xenial in container and BOINC there. SFSG.

Because I encountered repeated errors "Authorization failure: -155" issuing many boinccmd commands, I removed BOINC installation from the container and reinstalled it. But this error persisted even after purging and reinstalling BOINC!

In next attempt first boinccmd was OK, but next commands ended again with the same error - even though this command was OK,

boinccmd --lookup_account https://lhcathome.cern.ch/lhcathome/ `mail` `password`

following commands were not:

boinccmd --project_attach https://lhcathome.cern.ch/lhcathome/ `account`
Authorization failure: -155
boinccmd --get_state
Authorization failure: -155

Moreover, in latest attempt - purging BOINC from container, and even removing /var/lib/boinc-client directory - boinccmd --lookup_account command eneded with the same error "Authorization failure: -155" :-(

Could anybody please advice?

At first I tried to run all as non-root user and use sudo ;-) Later I reverted to root user, which is more convenient and easy (even though less secure ;-) Error(s) "Authorization failure: -155" were encountered in root mode :-( unfortunately.

I dont know why, but for me I need to cd to /etc/boinc-client/ then it works.
Good luck