Re: Tramp hangs setting up remote shell prompt.

[Michael Albinus]

David Keegan <address@hidden> writes:

> Michael,

Hi David,

> Please refer below to tramp buffer contents after hang on
> attempted connection.

--8<---------------cut here---------------start------------->8---
08:26:23.754168 tramp-accept-process-output (10) #
exec env ENV='' PROMPT_COMMAND='' PS1=\#\$\  PS2=
< exec env ENV='' PROMPT_COMMAND='' PS1=\#\$\  PS2='                         
' PS3='' /bin/sh



#$
#$
08:26:23.754489 tramp-get-connection-property (7) # check-remote-echo nil
08:26:23.754764 tramp-get-connection-property (7) # check-remote-echo nil
--8<---------------cut here---------------end--------------->8---

That looks very obscure. But Tramp should have recognized the prompt,
which is "#$ " in this situation. The trace shows "#$" (missing the
trailing space); I don't know whether it was stripped during mail
transfer, or not.

So let's try a prompt without trailing space. Could you, please, apply
the following patch:

--8<---------------cut here---------------start------------->8---
*** /home/albinus/src/tramp/lisp/tramp.el.~1~   2010-07-13 17:43:56.000000000 
+0200
--- /home/albinus/src/tramp/lisp/tramp.el       2010-07-15 15:55:25.069519000 
+0200
***************
*** 319,325 ****
  The '$' character at the end is quoted; the string cannot be
  detected as prompt when being sent on echoing hosts, therefore.")
  
! (defconst tramp-initial-end-of-output "#$ "
    "Prompt when establishing a connection.")
  
  (defvar tramp-methods
--- 319,325 ----
  The '$' character at the end is quoted; the string cannot be
  detected as prompt when being sent on echoing hosts, therefore.")
  
! (defconst tramp-initial-end-of-output "#$"
    "Prompt when establishing a connection.")
  
  (defvar tramp-methods
--8<---------------cut here---------------end--------------->8---

After that you shall close Emacs, and restart it again, because a
defconst does not change its value during evaluation when it was
declared already.

Best regards, Michael.