LHC@home

I tried to install the native theory app following the instructions here:

https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=4971

I could install CVMFS with no problems and it's running ok, but when running the last instructions:

sudo systemctl daemon-reload
sudo systemctl restart boinc-client

boinc-client fails to restart, with the message:

Job for boinc-client.service failed because the control process exited with error code.
See "systemctl status boinc-client.service" and "journalctl -xe" for details.

"systemctl status boinc-client.service" gives:

● boinc-client.service - Berkeley Open Infrastructure Network Computing Client
   Loaded: loaded (/etc/systemd/system/boinc-client.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sat 2020-12-26 16:48:59 CET; 1min 4s ago
     Docs: man:boinc(1)
  Process: 1060 ExecStartPre=/bin/sh -c /bin/chmod +x /sbin/create-boinc-cgroup && /sbin/create-boinc-cgroup (code=exited, status=210/CHROOT)

dic 26 16:48:59 frodo systemd[1]: Starting Berkeley Open Infrastructure Network Computing Client...
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Control process exited, code=exited status=210
dic 26 16:48:59 frodo systemd[1]: Failed to start Berkeley Open Infrastructure Network Computing Client.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Unit entered failed state.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Failed with result 'exit-code'.

"journalctl -xe" gives:

[...]
dic 26 16:48:40 frodo su[1045]: Successful su for root by yo
dic 26 16:48:40 frodo su[1045]: + /dev/pts/0 yo:root
dic 26 16:48:40 frodo su[1045]: pam_unix(su:session): session opened for user root by yo(uid=1000)
dic 26 16:48:40 frodo su[1045]: pam_systemd(su:session): Cannot create session: Already running in a session
dic 26 16:48:47 frodo systemd[1]: Reloading.
dic 26 16:48:48 frodo systemd[1]: apt-daily-upgrade.timer: Adding 7min 19.089474s random time.
dic 26 16:48:48 frodo systemd[1]: anacron.timer: Adding 14.782525s random time.
dic 26 16:48:48 frodo systemd[1]: apt-daily.timer: Adding 3h 28min 26.040214s random time.
dic 26 16:48:59 frodo systemd[1]: Starting Berkeley Open Infrastructure Network Computing Client...
-- Subject: Unit boinc-client.service has begun start-up
-- Defined-By: systemd
-- Support: https://www.debian.org/support
-- 
-- Unit boinc-client.service has begun starting up.
dic 26 16:48:59 frodo systemd[1060]: boinc-client.service: Failed at step CHROOT spawning /bin/sh: No such file or directory
-- Subject: Process /bin/sh could not be executed
-- Defined-By: systemd
-- Support: https://www.debian.org/support
-- 
-- The process /bin/sh could not be executed and failed.
-- 
-- The error number returned by this process is 2.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Control process exited, code=exited status=210
dic 26 16:48:59 frodo systemd[1]: Failed to start Berkeley Open Infrastructure Network Computing Client.
-- Subject: Unit boinc-client.service has failed
-- Defined-By: systemd
-- Support: https://www.debian.org/support
-- 
-- Unit boinc-client.service has failed.
-- 
-- The result is failed.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Unit entered failed state.
dic 26 16:48:59 frodo systemd[1]: boinc-client.service: Failed with result 'exit-code'.

I deleted /sbin/create-boinc-cgroup and /etc/systemd/system/boinc-client.service and this time BOINC started and I obtained a couple of Theory workunits.

Since this machine runs 24/7 there should not be much problem not having suspend/resume in the application.