Batch Computing Basics for DUNE - 2026 transition edition: Common Error Messages

/usr/bin/xauth: unable to write authority file

disk quota exceeded error with metacat auth login

These likely means your kerberos ticket was not forwarded and you can’t access your home are without it. do a kinit in your terminal session. Or possibly you really have filled your home area.

bash: setup: command not found

setup is a UPS command. You need to be running in the Apptainer and setup the DUNE ups system - check out the instructions in [SL7 setup] (https://dune.github.io/computing-basics/sl7_setup)

SyntaxError: future feature annotations is not defined

This looks like a bad python version, try doing which python if it isn’t > 3.9 you don’t have a modern python version.

• On SL7 we suggest setting up the dunesw as shown in the example setup. alternatively you can

    setup root -v v6_28_12 -q e26:p3915:prof
  

• On AL9 we suggest loading ROOT which brings in a modern version of python and allows xrootd access to data.

    spack load root@6.28.12
  

Spack ==> `Error: somecode matches multiple packages

Matching packages:
  jhpj2js somecode@6.28.06%gcc@12.2.0 arch=linux-almalinux9-x86_64_v2
  sfwfmqo somecode@6.28.12%gcc@12.2.0 arch=linux-almalinux9-x86_64_v2
Use a more specific spec (e.g., prepend '/' to the hash).

Choose a version and then

spack load somecode@6.28.12

We do not suggest using the hash as then how do you know what you did?