[winswitch] How to install local unprivileged Xpra server?
Antoine Martin
antoine at nagafix.co.uk
Fri Jan 26 05:19:07 GMT 2018
On 26/01/18 12:10, Ben Mishkanian wrote:
> [bmishkania at ussd-prd-rdln01 xpra-2.2.3]$ xpra showconfig | grep -i ^xvfb
> xvfb = 'xpra_Xdummy -noreset -novtswitch
> -nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
> $XAUTHORITY -logfile ${XPRA_LOG_DIR}/Xorg.${DISPLAY}.log -configdir
> ${XDG_RUNTIME_DIR}/xpra/xorg.conf.d/$PID -config
> /home/bmishkania/bin/localPython/etc/xpra/xorg.conf'
>
> It seems like it is still trying to use Xdummy but I am not sure why. I
> tried next to install Xvfb as suggested:
> yumdownloader xorg-x11-server-Xvfb
> rpm2cpio ./xorg-x11-server-Xvfb-1.19.3-11.el7_4.1.x86_64.rpm | cpio -idmv
> cp ./usr/bin/Xvfb ~/bin/ # copy Xvfb to directory that is in $PATH
> rm -r ~/bin/xpra-2.2.3/
> ./setup.py --without-Xdummy install --home=/home/bmishkania/bin/xpra-2.2.3/
>
> The build switches show:
> build switches:
> * PIC : Y
> * Xdummy : N
> * Xdummy_wrapper : Auto
(..)
> But it doesn't seem to have helped:
>
> [bmishkania at ussd-prd-rdln01 xpra-2.2.3]$ xpra start
(..)
> OSError: [Errno 9] Bad file descriptor
>
> xpra initialization error:
> xpra_Xdummy: did not provide a display number using displayfd
> [bmishkania at ussd-prd-rdln01 xpra-2.2.3]$ xpra showconfig | grep -i ^xvfb
> xvfb = 'xpra_Xdummy -noreset -novtswitch
> -nolisten tcp +extension GLX +extension RANDR +extension RENDER -auth
> $XAUTHORITY -logfile ${XPRA_LOG_DIR}/Xorg.${DISPLAY}.log -configdir
> ${XDG_RUNTIME_DIR}/xpra/xorg.conf.d/$PID -config
> /home/bmishkania/bin/localPython/etc/xpra/xorg.conf'
Verify that the xvfb value is correct in the "55_server_x11.conf" config
file that was generated. I think the problem is that your xpra config
files aren't found because of the non-standard location, so it uses the
builtin defaults, which is Xdummy on CentOS 7.x
To workaround this problem, you have at least 3 options:
* telling it where to load config files from:
XPRA_SYSCONF_DIRS=/path/to/etc/xpra xpra start ..
* specifying the xvfb option on the command line:
xpra start --xvfb=...
* setting the xvfb option for this particular user:
echo "xvfb=..." >> ~/.xpra/xpra.conf
Cheers
Antoine
>
>
> Thanks,
> Ben
> ------------------------------------------------------------------------
> *From:* Antoine Martin <antoine at nagafix.co.uk>
> *Sent:* Wednesday, January 24, 2018 8:47 PM
> *To:* Ben Mishkanian
> *Cc:* Xpra and Winswitch ML
> *Subject:* Re: [winswitch] How to install local unprivileged Xpra server?
>
>> I tried building without Xdummy and ended up with a different error.
>> Here is what I did:
>> rm -r ~/bin/xpra-2.2.3/
>> ./setup.py --without-Xdummy install --home=/home/bmishkania/bin/xpra-2.2.3/
>> xpra start --start=~/bin/firefox/firefox --daemon=no
>>
>> It prints this:
>> 2018-01-24 20:03:58,708 cannot access python uinput module:
>> 2018-01-24 20:03:58,708 No module named uinput
>> xpra main error:
>> Traceback (most recent call last):
> (..)
>> OSError: [Errno 9] Bad file descriptor
> This error message has now been improved:
> http://xpra.org/trac/changeset/18147
> Changeset 18147 – Xpra <http://xpra.org/trac/changeset/18147>
> xpra.org
> xpra - screen for X
>
>
>
>
>> xpra initialization error:
>> xpra_Xdummy: did not provide a display number using displayfd
> Based on this message, I'm not convinced that you are actually using
> xvfb. Double-check your configuration with:
> xpra showconfig | grep -i ^xvfb
>
>> I do not think Xvfb is installed on this system, even though Xorg is.
> The xorg-x11-server-Xvfb package on CentOS / RHEL 7.x only contains one
> binary file named "Xvfb". You can just unpack the RPM by hand and put
> the binary in your $PATH. The dependencies should already be present if
> you have /usr/bin/Xorg installed.
>
>> As
>> an unprivileged user it may be hard for me to install Xvfb, so could
>> there be a different solution?
> Yes, figure out why you get those tty errors when running xpra_Xdummy.
> Regular CentOS 7.x systems can normally run it just fine.
>
> Cheers
> Antoine
>
>>
>> Thanks,
>> Ben
>>
>> ------------------------------------------------------------------------
>> *From:* Antoine Martin <antoine at nagafix.co.uk>
>> *Sent:* Wednesday, January 24, 2018 1:26 AM
>> *Cc:* Ben Mishkanian; Xpra and Winswitch ML
>> *Subject:* Re: [winswitch] How to install local unprivileged Xpra server?
>>
>> Please always CC the mailing list.
>>
>> On 24/01/18 13:39, Ben Mishkanian wrote:
>>> Thank you for the quick response!
>>>
>>>
>>> It is CentOS 7.4.1708. You're right, I used the wrong PYTHONPATH. Oops.
>>> It allows server commands now, but now there's a new error. Here is what
>>> I did:
>>>
>>>
>>> ./setup.py -v install --home=/home/bmishkania/bin/xpra-2.2.3/
>>>
>>> export PYTHONPATH=/home/bmishkania/bin/xpra-2.2.3/lib64/python:$PYTHONPATH
>>>
>>> xpra start --start=~/bin/firefox/firefox
>> This should not work unless you've also installed xpra somewhere on the
>> $PATH or modified $PATH.
>> You could also use the path to somewhere/install/bin/xpra directly.
>>
>>> It prints:
>>>
>>> Warning: cannot use the system proxy for 'start' subcommand,
>> Harmless warning, you don't have a system service, it will fallback to
>> self-daemonizing.
>>
>>> failed to connect to '/run/xpra/system':
>>> [Errno 2] No such file or directory
>> Harmless warning because you are missing the tmpfiles.d bits.
>>
>>> Entering daemon mode; any further errors will be reported to:
>>> /run/user/109999/xpra/S12370.log
>>>
>>> Here is the log file:
>>> 2018-01-23 22:12:33,912 cannot access python uinput module:ESC[0m
>>> 2018-01-23 22:12:33,912 No module named uinputESC[0m
>> Harmless, you don't have uinput installed. You wouldn't be able to use
>> it anyway without the system service without also modifying the device
>> permissions.
>>
>>> Failed to rename log file "/run/user/109999/xpra/Xorg.S12370.log" to
>>> "/run/user/109999/xpra/Xorg.S12370.log": No such file or directory
>> Harmless, that's a known Xorg bug languishing upstream.
>>
>>> X.Org X Server 1.19.3
>>> Release Date: 2017-03-15
>>> X Protocol Version 11, Revision 0
>>> Build Operating System: 3.10.0-514.16.1.el7.x86_64
>>> Current Operating System: Linux ussd-prd-rdln01
>>> 3.10.0-693.5.2.el7.x86_64 #1 SMP Fri Oct 20 20:32:50 UTC 2017 x86_64
>>> Kernel command line: BOOT_IMAGE=vmlinuz initrd=initrd
>>> rdblacklist=nouveau net.ifnames=0 biosdevname=0 user_namespace.enable=1
>>> mlx4_core.port_type_array=2,2
>>> ip=10.12.144.15:10.12.144.11:10.12.144.1:255.255.252.0
>>> BOOTIF=01-0c-c4-7a-1d-ae-de
>>> Build Date: 05 August 2017 06:19:43AM
>>> Build ID: xorg-x11-server 1.19.3-11.el7
>>> Current version of pixman: 0.34.0
>>> Before reporting problems, check http://wiki.x.org
>>> to make sure that you have the latest version.
>>> Markers: (--) probed, (**) from config file, (==) default setting,
>>> (++) from command line, (!!) notice, (II) informational,
>>> (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
>>> (++) Log file: "/run/user/109999/xpra/Xorg.S12370.log", Time: Tue Jan 23
>>> 22:12:34 2018
>>> (++) Using config file:
>>> "/home/bmishkania/bin/localPython/etc/xpra/xorg.conf"
>>> (==) Using system config directory "/usr/share/X11/xorg.conf.d"
>>> (EE)
>>> Fatal server error:
>>> (EE) parse_vt_settings: Cannot open /dev/tty0 (Permission denied)
>>> (EE)
>>> (EE)
>>> Please consult the The X.Org Foundation support
>>> at http://wiki.x.org
>>> for help.
>>> (EE) Please also check the log file at
>>> "/run/user/109999/xpra/Xorg.S12370.log" for additional information.
>>> (EE)
>>> (EE) Server terminated with error (1). Closing log file.
>>> xpra initialization error:
>>> xpra_Xdummy: did not provide a display number using displayfd
>> xpra_Xdummy failed to run, there could be a number of reasons for that.
>> The easiest fix for you might just be to switch to Xvfb:
>> ./setup.py --without-Xdummy install --home=....
>>
>> Cheers
>> Antoine
>>
>>>
>>>
>>> Any ideas how I can fix this?
>>>
>>> Thank you,
>>> Ben
>>>
>>> ------------------------------------------------------------------------
>>> *From:* shifter-users <shifter-users-bounces at lists.devloop.org.uk> on
>>> behalf of Antoine Martin via shifter-users
>>> <shifter-users at lists.devloop.org.uk>
>>> *Sent:* Tuesday, January 23, 2018 9:57 PM
>>> *To:* shifter-users at lists.devloop.org.uk
>>> *Subject:* Re: [winswitch] How to install local unprivileged Xpra server?
>>>
>>> On 24/01/18 12:47, Ben Mishkanian via shifter-users wrote:
>>>> Hi,
>>>>
>>>>
>>>> I am trying to build and install from source an Xpra 2.2.3 server as an unprivileged user on CentOS 7. I ran setup.py and it seems to complete fine, although it prints a bunch of brotli errors saying it failed to minify various files.
>>> You can ignore those errors or turn off the brotli feature, see:
>>> ./setup.py --help
>>>
>>>> In any case it produces the xpra binary, but when I run `xpra -h` it says (This xpra installation does not support starting local servers.)
>>> Please always include the exact command lines that you have used so we
>>> can help you with that.
>>> Also specify which CentOS 7 you are using, CentOS versions older than
>>> 7.2 are not supported in xpra versions 2.x and later, see:
>>> https://www.xpra.org/trac/wiki/Platforms
> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> www.xpra.org
> Platforms. Unless otherwise stated, all the operating systems listed
> here support all versions of xpra. The only architectures officially
> tested and supported are ...
>
>
>
>> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> www.xpra.org
> Platforms. Unless otherwise stated, all the operating systems listed
> here support all versions of xpra. The only architectures officially
> tested and supported are ...
>
>
>
>> www.xpra.org <http://www.xpra.org>
> xpra home page <http://www.xpra.org/>
> www.xpra.org
> About. Xpra is an open-source multi-platform persistent remote display
> server and client for forwarding applications and desktop screens. It
> gives you remote access ...
>
>
>
>> Platforms. Unless otherwise stated, all the operating systems listed
>> here support all versions of xpra. The only architectures officially
>> tested and supported are ...
>>
>>
>>
>>> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> www.xpra.org
> Platforms. Unless otherwise stated, all the operating systems listed
> here support all versions of xpra. The only architectures officially
> tested and supported are ...
>
>
>
>> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> Platforms – Xpra <https://www.xpra.org/trac/wiki/Platforms>
> www.xpra.org
> Platforms. Unless otherwise stated, all the operating systems listed
> here support all versions of xpra. The only architectures officially
> tested and supported are ...
>
>
>
>> www.xpra.org <http://www.xpra.org>
> xpra home page <http://www.xpra.org/>
> www.xpra.org
> About. Xpra is an open-source multi-platform persistent remote display
> server and client for forwarding applications and desktop screens. It
> gives you remote access ...
>
>
>
>> Platforms. Unless otherwise stated, all the operating systems listed
>> here support all versions of xpra. The only architectures officially
>> tested and supported are ...
>>
>>
>>
>>> www.xpra.org <http://www.xpra.org> <http://www.xpra.org>
> xpra home page <http://www.xpra.org/>
> www.xpra.org
> About. Xpra is an open-source multi-platform persistent remote display
> server and client for forwarding applications and desktop screens. It
> gives you remote access ...
>
>
> xpra home page <http://www.xpra.org/>
> www.xpra.org
> About. Xpra is an open-source multi-platform persistent remote display
> server and client for forwarding applications and desktop screens. It
> gives you remote access ...
>
>
>
>> xpra home page <http://www.xpra.org/>
> xpra home page <http://www.xpra.org/>
> www.xpra.org
> About. Xpra is an open-source multi-platform persistent remote display
> server and client for forwarding applications and desktop screens. It
> gives you remote access ...
>
>
>
>> www.xpra.org <http://www.xpra.org>
> xpra home page <http://www.xpra.org/>
> www.xpra.org
> About. Xpra is an open-source multi-platform persistent remote display
> server and client for forwarding applications and desktop screens. It
> gives you remote access ...
>
>
>
>> About. Xpra is an open-source multi-platform persistent remote display
>> server and client for forwarding applications and desktop screens. It
>> gives you remote access ...
>>
>>
>>
>>> Platforms. Unless otherwise stated, all the operating systems listed
>>> here support all versions of xpra. The only architectures officially
>>> tested and supported are ...
>>>
>>>
>>>
>>>
>>> Be aware that your home made build will be severely degraded and may not
>>> work as expected. (performance, features, security, etc)
>>>
>>>> How can I find out why it can't start local servers? setup.py showed that the "server" build switch is set to "Y".
>>> My guess is that you're not setting the PYTHONPATH correctly.
>>> You should be installing into a directory:
>>> ./setup.py install --home=./install
>>> Then adjusting PATH and PYTHONPATH accordingly.
>>>
>>> Cheers
>>> Antoine
>>>> Thank you,
>>>>
>>>> Ben
>>>> _______________________________________________
>>>> shifter-users mailing list
>>>> shifter-users at lists.devloop.org.uk
>>>> http://lists.devloop.org.uk/mailman/listinfo/shifter-users
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> shifter-users Info Page - devloop.org.uk
>> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> lists.devloop.org.uk
>> General discussion and help on using Window Switch. To see the
>> collection of prior postings to the list, visit the shifter-users Archives.
>>
>>
>>
>>> shifter-users Info Page - devloop.org.uk
>>> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> shifter-users Info Page - devloop.org.uk
>> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> lists.devloop.org.uk
>> General discussion and help on using Window Switch. To see the
>> collection of prior postings to the list, visit the shifter-users Archives.
>>
>>
>>
>>> lists.devloop.org.uk
>>> General discussion and help on using Window Switch. To see the
>>> collection of prior postings to the list, visit the shifter-users Archives.
>>>
>>>
>>>
>>>>
>>>
>>> _______________________________________________
>>> shifter-users mailing list
>>> shifter-users at lists.devloop.org.uk
>>> http://lists.devloop.org.uk/mailman/listinfo/shifter-users
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> shifter-users Info Page - devloop.org.uk
>> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> lists.devloop.org.uk
>> General discussion and help on using Window Switch. To see the
>> collection of prior postings to the list, visit the shifter-users Archives.
>>
>>
>>
>>> shifter-users Info Page - devloop.org.uk
>>> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> shifter-users Info Page - devloop.org.uk
>> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> shifter-users Info Page - devloop.org.uk
> <http://lists.devloop.org.uk/mailman/listinfo/shifter-users>
> lists.devloop.org.uk
> General discussion and help on using Window Switch. To see the
> collection of prior postings to the list, visit the shifter-users Archives.
>
>
>
>> lists.devloop.org.uk
>> General discussion and help on using Window Switch. To see the
>> collection of prior postings to the list, visit the shifter-users Archives.
>>
>>
>>
>>> lists.devloop.org.uk
>>> General discussion and help on using Window Switch. To see the
>>> collection of prior postings to the list, visit the shifter-users Archives.
>>>
>>>
>>>
>>
>
More information about the shifter-users
mailing list