Re: guixSD - problem with X11 forwarding

[myglc2]

address@hidden (Ludovic Courtès) writes:

> myglc2 <address@hidden> skribis:
>
>> On guixSD, with no packages installed in the login user profile, I get
>> 'X11 forwarding request failed on channel 0'
>
> [...]
>
>> debug1: channel 0: new [client-session]
>> debug1: Entering interactive session.
>> debug1: Requesting X11 forwarding with authentication spoofing.
>> debug1: Sending environment.
>> debug1: Sending env LANG = en_US.UTF-8
>> X11 forwarding request failed on channel 0
>
> Right, I see that as well.
>
> lshd gives some clues in /var/log/messages:
>
> Feb 23 18:14:09 localhost lshd[430]: lshd: Updating utmp for login failed 
> (errno = 2): No such file or directory 
> Feb 23 18:14:09 localhost lshd[430]: lshd: xauth invocation failed: exit 
> code: 127 
> Feb 23 18:14:33 localhost lshd[430]: lshd: Updating utmpx for logout failed 
> (errno = 2): No such file or directory 
> Feb 23 18:14:33 localhost lshd[430]: lshd: write_buffer: Attempt to write 
> data to closed buffer. 
> Feb 23 18:14:33 localhost lshd[430]: lshd: Disconnect for reason 11: 
> disconnected by user 
>
> Indeed, server_x11.c in lsh reads:
>
> #ifndef XAUTH_PROGRAM
> # define XAUTH_PROGRAM "/usr/X11R6/bin/xauth"
> #endif
>
> I believe this is fixed by commit da35acf.
>
> To give it a try, you can run (as root):
>
>   # guix pull
>   # herd stop ssh-daemon
>   # guix system reconfigure your-config.scm

I tried the above. 'ssh -v ...' still produces results quoted above and
I see in /var/log/messages:

Feb 29 20:43:54 localhost lshd[6959]: lshd: Failed to cd to `/tmp/.X11-unix' 
(errno = 2): No such file or directory 
Feb 29 20:43:54 localhost lshd[6959]: lshd: Updating utmp for login failed 
(errno = 2): No such file or directory 
Feb 29 20:45:35 localhost lshd[6959]: lshd: Updating utmpx for logout failed 
(errno = 2): No such file or directory 
Feb 29 20:45:35 localhost lshd[6959]: lshd: write_buffer: Attempt to write data 
to closed buffer. 
Feb 29 20:45:35 localhost lshd[6959]: lshd: Disconnect for reason 11: 
disconnected by user 
Feb 29 20:45:47 localhost lshd[6959]: lshd: Failed to cd to `/tmp/.X11-unix' 
(errno = 2): No such file or directory 
Feb 29 20:45:47 localhost lshd[6959]: lshd: Updating utmp for login failed 
(errno = 2): No such file or directory 

I tried 'sudo mkdir /tmp/.X11-unix' which changed /var/log/messages to:

Feb 29 20:54:04 localhost lshd[6959]: lshd: Updating utmp for login failed 
(errno = 2): No such file or directory 
Feb 29 20:54:09 localhost lshd[6959]: lshd: Updating utmpx for logout failed 
(errno = 2): No such file or directory 
Feb 29 20:54:09 localhost lshd[6959]: lshd: write_buffer: Attempt to write data 
to closed buffer. 
Feb 29 20:54:09 localhost lshd[6959]: lshd: Disconnect for reason 11: 
disconnected by user 

and 'ssh -v ...' still produces the results quoted above.