Making my Ubuntu 18.04 LTS work for Grid, CMSSW, CRAB, xroot

CVMFS is prerequisite for most things

xroot via anaconda

grid stuff, see also CrabOnUbuntu1204

  • install globus-proxy-utils via synaptic
  • install voms-clients via synaptic
  • install myproxy via synaptic
  • in my .bashrc
    export X509_CERT_DIR=/cvmfs/
    export X509_USER_PROXY=/tmp/x509up_u`id -u`
    export X509_VOMSES=/cvmfs/
    export VOMS_USERCONF=/cvmfs/

CRAB3 client

  • works out of the box same as on lxplus, but can't run scram (of course)


  • works via singularity as per
    • install singularity-container via synaptic
    • do not try to bind /afs nor /eos, just do
      export SINGULARITY_CACHEDIR="/tmp/$(whoami)/singularity"
      singularity shell  -B /cvmfs docker://cmssw/cc7:latest
      export SCRAM_ARCH=slc7_amd64_gcc700
      source /cvmfs/
  • Beware: inside singularity binaries from Ubuntu are not accessible, e.g. there's no myproxy, so crab commands e.g. will require dont_check_proxy=1 in crab.cfg

-- StefanoBelforte - 2019-09-08

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Topic revision: r3 - 2019-09-09 - StefanoBelforte
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