Frequently Asked Questions (FAQs)

This page contains frequently asked questions. If users have any trouble, questions, concerns, or suggestions, feel free to contact ARCC.


General ARCC Troubleshooting

For general issues please see our Known Issues page to see if the problem could be caused by something that we already are aware of and recommended solutions or work arounds.


General FAQs:

My home directory is full (I’m getting a quota limit warning). Can I get more space?

  • Rarely do we increase /home directory space and ask that you please clean up any unnecessary files first.

  • To determine what is taking up space in your home directory, you can cd to our home directory, then run a du -h --max-depth=1 command to determine what’s taking up space in your home folder.

  • You may want to move files from your /home directory to your /project directory, or if your data isn’t needed long term or is backed up elsewhere, you may move it to your /gscratch directory.

  • If the problem persists, email to describe your issue.

May I have sudo access on Beartooth?

Users are not permitted to have sudo access. Email to request anything you need installed or changed on the cluster.

I can’t access my Alcova storage

This can happen for a number of reasons.

If you’re trying to access Alcova from off campus, you will need to use the UWyo VPN to get onto the UWyo network.

If this doesn’t help, please contact ARCC at so we may troubleshoot your issue.

My UWyo user account is locked/disabled, can ARCC restore it so I can use ARCC resources?

Do I need a smart phone to use two-factor for ARCC services?

  • No, there are other options:

    • You have to purchase a Yubikey and then self enroll the key or have it set up by UWIT.

    • You can enroll in any phone number or device on Duo.

      • When logging into Beartooth using the landline method, type “<your password>, phone“ and your enrolled number will get a call.


I’m having trouble logging in with the new SSH key authentication. Please help!



How do I access Beartooth when I am not on the UWyo network?

  • Beartooth's login nodes are on the Science DMZ network outside of UWyo firewalls. Meaning you can log into Beartooth from anywhere as long as you have an internet connection and a terminal or ssh client.

How do I run my code on Beartooth?

  • You must submit your code to the job scheduler. Running code on login nodes is not permitted.

    • For more information about the job scheduler please see our page on Slurm.

How do I find out which software packages are installed/available on Beartooth?

  • While logged into Beartooth, executing the command "module spider" will list all modules installed on Beartooth.

$ module spider To learn more about a package execute: $ module spider Foo where "Foo" is the name of a module. To find detailed information about a particular package you must specify the version if there is more than one version: $ module spider Foo/11.1


How do I access my Alcova allocation when I am not on the UWyo network?

Users will need to use the UWyo VPN to get onto the UWyo network.