Re: [Xen-users] Why using X11 on local machine

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> - if on dom1 exec startx the following error message was printed:
>
>    dom1:~# startx
>    ...
>    Fatal server error:
>    xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)

Your options are:
1) run "vncserver" in the guest
2) SSH to the guest and use X11 forwarding to get graphical access, just as 
you would for a separate machine
3) Run the FreeNX server in the guest and connect using the NoMachine NX 
client from outside

> - if on host exec svncviewer the following error message was printed:
>
>    dom0:~# strace svncviewer 192.168.1.12:1
>    ...
>    open("/proc/bus/pci/15/1f.0", O_RDONLY) = -1 ENOENT (No such file or
> direc tory)
>    read(-1, 0xbffffa00, 12)                = -1 EBADF (Bad file descriptor)
>    close(-1)                               = -1 EBADF (Bad file descriptor)
>    iopl(0)                                 = 0
>    --- SIGSEGV (Segmentation fault) @ 0 (0) ---
>    +++ killed by SIGSEGV +++

I imagine that failed due to Xen's PCI interface forbidding SVGAlib from doing 
something - has anyone actually tried SVGAlib under Xen?

> - which possibilities to use X11 on the local system?

Easiest would be to install X11 in dom0, then use one of the network-based 
solutions I mentioned in order to get access to the other domains.

HTH,
Mark

PS. Thanks for the picture!

>     system
>    ------------------------------------------------------------------
>
>    |   host/dom0                 dom1                    dom2       |
>    |----------------        ----------------        ----------------|
>    |
>    ||  xen0        |        |  XenU        |        |  XenU        ||
>    ||small-install |        |big-install   |        |big-install   ||
>    || - X11        |        | + X11        |        | + X11        ||
>    || + ntp        |        | - ntp        |        | - ntp        ||
>    |
>    |----------------        ----------------        ----------------|
>    | 192.168.1.10             192.168.1.11            192.168.1.12  |
>
>    ------------------------------------------------------------------
>
> regards tl
>
> --
> Torsten lehmann
> Launic
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

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