Opened 7 years ago

Closed 7 years ago

#1378 closed help (fixed)

Unable to directly login to PUMA and unable to open the umui once logged in

Reported by: CatherineHardacre Owned by: annette
Component: PUMA Keywords: ssh, X11
Cc: Platform: PUMA
UM Version: <select version>



I have a couple of problems, perhaps related.

1) I can't directly ssh to PUMA from my computer. If I try to do so I get the following message:

ssh: Could not resolve hostname puma/ Name or service not known

However, if I ssh to Archer, from there I can ssh -Y into PUMA. I am not sure why this is happening. I have previously been able to ssh directly from my computer

2) Once on PUMA (via Archer) I am unable to open the umui. I get the following error message:

Application initialization failed: no display name and no $DISPLAY environment variable
Error in startup script: invalid command name "option"

while executing

"option add *foreground $colours(enabled_fg)"

(procedure "entry_appearance" line 19)
invoked from within


(file "/home/umui/umui/ghui2.0/tcl/entry.tcl" line 52)

Again, I have been able to do this previously. Comparing my home directory with my colleagues, there seem to some files which are absent i.e. .config/
, umui (though I'm not sure if that's significant).

Thanks for your help.

Kind Regards,

Catherine Hardacre

Change History (3)

comment:1 Changed 7 years ago by annette

  • Owner changed from um_support to annette
  • Status changed from new to assigned

Hi Catherine,

It looks like you might be getting the puma path wrong. Try the following:

ssh -Y

If you haven't been using -Y that might be why you can't open any windows.

Let me know how that goes,


comment:2 Changed 7 years ago by annette

  • Keywords ssh, X11 added
  • Platform set to PUMA

Also I think that to get windows to open when you log in to puma via Archer you need to set up X11 forwarding on your local machine. Hopefully though you will be able to log in directly.


comment:3 Changed 7 years ago by annette

  • Resolution set to fixed
  • Status changed from assigned to closed

Hi Catherine,

I assume you are now able to log in to puma so I'm going to close this ticket. If you have any further queries do get in touch.


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