Pardon me for posting this to the x2go-dev list but I think this is important because of what x2go could do for tablet computers..
I wanted to share this as I think I'm getting close to success.
I recently was persuaded by a variety of reviews to buy the $249 (US $) Barnes and Noble Nook Color tablet.
short list of features:
Not to bore you with the details but I rooted the Nook tablet and then updated it to the latest version of Android 2.3.3 (version name = Gingerbread)
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI but later switched it to Gnome (just because I'm more at home with Gnome)
I added the Ubuntu x2go repository
then sudo apt-get update
*Now... the interesting part...*
Because this is an OMAP3 ARM processor any "sudo apt-get install xxxxxx" where = xxxxxx package name Gets automatically redirected (by Launchpad I guess) to Canonical's ARMEL (ARM repository) to complete the download/install request.
Therefore whatever you are requesting needs to have been built/added to that ARM repository.
The 'sudo apt-get install x2goclient" did successfully run but so far it only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
I took some pictures with my cell phone of the Nook Color terminal display above the above & I'll attach them to this but they may be a bit hard to see in any detail.
So... from my limited technical knowledge I "think" that its only a matter of time until the rest of the x2go and/or pyhoca-gui x2go clients are supported in the Canonical the ARMEL repository.
From what I understand from the following 2 articles:
A Canonical engineer at Canonical is/has built a custom 42 core ARM Cluster to in order to do have a a proper build environment and hardware that will allow contributors to submit and build the 20,000+ packages that make up the Linux distribution and to expedite Ubuntu development/porting to ARM architecture(s)... a guess at total build cost was about $4,854.
The engineer ordered a custom rack in which to house 21 ARM PandaBoards. 20 of them would be used for package building, with the 21st used as a master board for monitoring and controlling access for each user. Each board is also connected to a 300GB SATAII USB hard drive, giving a total of 6TB of storage in the server<http://www.geek.com/articles/chips/canonical-builds-a-42-core-arm-cluster-server-box-for-ubuntu-20110613/#> .
The system works by allocating time on the server when a request is received from a user.
The master board checks for a free PandaBoard, reboots that free board, and presents the user with a clean build environment in which to work.
Once a build has been completed the board is flagged as free and the process is repeated.
This project looks to be ongoing and you can follow its progress over at the dmtechtalk website <http://dmtechtalk.wordpress.com/> where Mandella is regularly posting information and images. The Canonical engineer's got a blog that is posted here with his progress:
Hi Brian,
On Fr 01 Jul 2011 03:18:47 CEST brian mullan wrote:
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI but later switched it to Gnome (just because I'm more at home with Gnome)
I probably have no influence on armel-builds on Launchpad, but I have
an influence on the X2go package build process for Debian. I have
already thought to build the main area in the packages.x2go.org repos
for armel, as well. I use qemubuilder for build the packages, so I
could basically build for any available architecture. It will take
time (qemu software emulation), but it will work (and my build machine
is quite smart).
I added the Ubuntu x2go repository
The 'sudo apt-get install x2goclient" did successfully run but so far it
Really? x2goclient should not be in the armel repositories. Where did
you actually install from. Maybe the old location on
obviously-nice.de???
only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
pyhoca-gui is arch-independent and should also be available. As there
is an old version of nxproxy in Ubuntu you should actually be able to
run pyhoca-gui on armel. Could you please try that (apt-get install
pyhoca-gui).
[...]
I didn't really get the last part. Concrete question, maybe also to
Reinhard: is there a possibility to build armel packages on Ubuntu
launchpad?
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de
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On Fri, Jul 01, 2011 at 06:20:07 (CEST), Mike Gabriel wrote:
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
There are armel PPA builders, but as there is no XEN for arm, they run on native hardware and are thus restricted.
-- Gruesse/greetings, Reinhard Tartler, KeyID 945348A4
Hi Reinhard,
On Fr 01 Jul 2011 07:56:15 CEST Reinhard Tartler wrote:
On Fri, Jul 01, 2011 at 06:20:07 (CEST), Mike Gabriel wrote:
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
There are armel PPA builders, but as there is no XEN for arm, they run on native hardware and are thus restricted.
Would it then make sense that I feed my qemubuilder with Ubuntu
chroots for Armel? Building armel packages in qemubuiler is
ridicilously slow, but it works. We surely cannot do that very often,
but we can.
I suppose we could upload our self-built packages to the X2go PPA on
Launchpad?
Cheers, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de
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On Fri, Jul 01, 2011 at 11:17:25 (CEST), Mike Gabriel wrote:
Hi Reinhard,
On Fr 01 Jul 2011 07:56:15 CEST Reinhard Tartler wrote:
On Fri, Jul 01, 2011 at 06:20:07 (CEST), Mike Gabriel wrote:
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
There are armel PPA builders, but as there is no XEN for arm, they run on native hardware and are thus restricted.
Would it then make sense that I feed my qemubuilder with Ubuntu chroots for Armel? Building armel packages in qemubuiler is ridicilously slow, but it works. We surely cannot do that very often, but we can.
I suppose we could upload our self-built packages to the X2go PPA on Launchpad?
Launchpad, just as Ubuntu, allow source-only uploads only.
-- Gruesse/greetings, Reinhard Tartler, KeyID 945348A4
Mike et al
If you were referring to:
"the custom 42 core ARM Cluster to in order to do have a a proper build environment and hardware that will allow contributors to submit and build the 20,000+"
My reading of the information available is that the cluster would be available and used by *both* canonical and 3rd party app developers as a build system to create the ARM packages of their software.
Brian
On Fri, Jul 1, 2011 at 12:20 AM, Mike Gabriel < mike.gabriel@das-netzwerkteam.de> wrote:
Hi Brian,
On Fr 01 Jul 2011 03:18:47 CEST brian mullan wrote:
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI
but later switched it to Gnome (just because I'm more at home with Gnome)
I probably have no influence on armel-builds on Launchpad, but I have an influence on the X2go package build process for Debian. I have already thought to build the main area in the packages.x2go.org repos for armel, as well. I use qemubuilder for build the packages, so I could basically build for any available architecture. It will take time (qemu software emulation), but it will work (and my build machine is quite smart).
I added the Ubuntu x2go repository
The 'sudo apt-get install x2goclient" did successfully run but so far it
Really? x2goclient should not be in the armel repositories. Where did you actually install from. Maybe the old location on obviously-nice.de???
only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
pyhoca-gui is arch-independent and should also be available. As there is an old version of nxproxy in Ubuntu you should actually be able to run pyhoca-gui on armel. Could you please try that (apt-get install pyhoca-gui).
[...]
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.**de<mike.gabriel@das-netzwerkteam.de>, http://das-netzwerkteam.de
freeBusy: https://mail.das-netzwerkteam.**de/freebusy/m.gabriel%40das-** netzwerkteam.de.xfb<https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb>
I didn't mention it but if you read the Canonical engineer's blog... the goal of that cluster from Canonical's point of view was to have both Ubuntu and as much 3rd party software built and ready for the release of Ubuntu 11.10 in October.
My view is the combination of Unity (which seems to work really well so far on my 11.04 systems) will be a really good UI for tablets and finger oriented multi-touch screens. So Ubuntu 11.10 could become very interesting on Tablets.
Brian
On Fri, Jul 1, 2011 at 6:10 AM, brian mullan <bmullan.mail@gmail.com> wrote:
Mike et al
If you were referring to:
"the custom 42 core ARM Cluster to in order to do have a a proper build environment and hardware that will allow contributors to submit and build the 20,000+"
My reading of the information available is that the cluster would be available and used by *both* canonical and 3rd party app developers as a build system to create the ARM packages of their software.
Brian
On Fri, Jul 1, 2011 at 12:20 AM, Mike Gabriel < mike.gabriel@das-netzwerkteam.de> wrote:
Hi Brian,
On Fr 01 Jul 2011 03:18:47 CEST brian mullan wrote:
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI
but later switched it to Gnome (just because I'm more at home with Gnome)
I probably have no influence on armel-builds on Launchpad, but I have an influence on the X2go package build process for Debian. I have already thought to build the main area in the packages.x2go.org repos for armel, as well. I use qemubuilder for build the packages, so I could basically build for any available architecture. It will take time (qemu software emulation), but it will work (and my build machine is quite smart).
I added the Ubuntu x2go repository
The 'sudo apt-get install x2goclient" did successfully run but so far it
Really? x2goclient should not be in the armel repositories. Where did you actually install from. Maybe the old location on obviously-nice.de???
only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
pyhoca-gui is arch-independent and should also be available. As there is an old version of nxproxy in Ubuntu you should actually be able to run pyhoca-gui on armel. Could you please try that (apt-get install pyhoca-gui).
[...]
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.**de<mike.gabriel@das-netzwerkteam.de>, http://das-netzwerkteam.de
freeBusy: https://mail.das-netzwerkteam.**de/freebusy/m.gabriel%40das-** netzwerkteam.de.xfb<https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb>
one last thing I forgot to mention is that I used the Ubuntu PPA listed on the x2go wiki
http://wiki.x2go.org/adding_the_x2go_repository_ubuntu
When doing the apt-get install ... I can see the package manager initiate the download and then a message about accessing the ARMEL library so my Android ARM system's request is somehow recognized as needing ARM repository packages... I'm not smart enough in that area to know how that occurs <g>
On Fri, Jul 1, 2011 at 6:24 AM, brian mullan <bmullan.mail@gmail.com> wrote:
I didn't mention it but if you read the Canonical engineer's blog... the goal of that cluster from Canonical's point of view was to have both Ubuntu and as much 3rd party software built and ready for the release of Ubuntu 11.10 in October.
My view is the combination of Unity (which seems to work really well so far on my 11.04 systems) will be a really good UI for tablets and finger oriented multi-touch screens. So Ubuntu 11.10 could become very interesting on Tablets.
Brian
On Fri, Jul 1, 2011 at 6:10 AM, brian mullan <bmullan.mail@gmail.com>wrote:
Mike et al
If you were referring to:
"the custom 42 core ARM Cluster to in order to do have a a proper build environment and hardware that will allow contributors to submit and build the 20,000+"
My reading of the information available is that the cluster would be available and used by *both* canonical and 3rd party app developers as a build system to create the ARM packages of their software.
Brian
On Fri, Jul 1, 2011 at 12:20 AM, Mike Gabriel < mike.gabriel@das-netzwerkteam.de> wrote:
Hi Brian,
On Fr 01 Jul 2011 03:18:47 CEST brian mullan wrote:
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI
but later switched it to Gnome (just because I'm more at home with Gnome)
I probably have no influence on armel-builds on Launchpad, but I have an influence on the X2go package build process for Debian. I have already thought to build the main area in the packages.x2go.org repos for armel, as well. I use qemubuilder for build the packages, so I could basically build for any available architecture. It will take time (qemu software emulation), but it will work (and my build machine is quite smart).
I added the Ubuntu x2go repository
The 'sudo apt-get install x2goclient" did successfully run but so far it
Really? x2goclient should not be in the armel repositories. Where did you actually install from. Maybe the old location on obviously-nice.de???
only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
pyhoca-gui is arch-independent and should also be available. As there is an old version of nxproxy in Ubuntu you should actually be able to run pyhoca-gui on armel. Could you please try that (apt-get install pyhoca-gui).
[...]
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.**de<mike.gabriel@das-netzwerkteam.de>, http://das-netzwerkteam.de
freeBusy: https://mail.das-netzwerkteam.**de/freebusy/m.gabriel%40das-** netzwerkteam.de.xfb<https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb>
Ohhh... a big thing I also forgot to mention this IMPORTANT future use.
The $250 ($=US dollars) Nook Color tablet's* GPU is the PowerVR SGX530, which is OpenGL ES 1.1/2.0. *
The Barnes & Noble android did not go all out with the "stock" drivers since it's sold as "just" an ebook reader after all... ), and did not provide support for OpenGL 2.0.
BUT... a kernel can be compiled with the correct drivers for OpenGL 2.0 and actually has already been done and is available.
My Nook Tablet is running a ROM that already has OpenGL 2.0.
So although I've not tried Ubuntu 11.04 yet (I will soon) .. its my understanding of Ubuntu Unity that the OpenGL 2.0 support should enable the full Unity capabilities without having to drop back to what Canonical is calling Unity-2D (or the classical desktop --- re gnome 2).
Brian
On Fri, Jul 1, 2011 at 6:24 AM, brian mullan <bmullan.mail@gmail.com> wrote:
I didn't mention it but if you read the Canonical engineer's blog... the goal of that cluster from Canonical's point of view was to have both Ubuntu and as much 3rd party software built and ready for the release of Ubuntu 11.10 in October.
My view is the combination of Unity (which seems to work really well so far on my 11.04 systems) will be a really good UI for tablets and finger oriented multi-touch screens. So Ubuntu 11.10 could become very interesting on Tablets.
Brian
On Fri, Jul 1, 2011 at 6:10 AM, brian mullan <bmullan.mail@gmail.com>wrote:
Mike et al
If you were referring to:
"the custom 42 core ARM Cluster to in order to do have a a proper build environment and hardware that will allow contributors to submit and build the 20,000+"
My reading of the information available is that the cluster would be available and used by *both* canonical and 3rd party app developers as a build system to create the ARM packages of their software.
Brian
On Fri, Jul 1, 2011 at 12:20 AM, Mike Gabriel < mike.gabriel@das-netzwerkteam.de> wrote:
Hi Brian,
On Fr 01 Jul 2011 03:18:47 CEST brian mullan wrote:
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI
but later switched it to Gnome (just because I'm more at home with Gnome)
I probably have no influence on armel-builds on Launchpad, but I have an influence on the X2go package build process for Debian. I have already thought to build the main area in the packages.x2go.org repos for armel, as well. I use qemubuilder for build the packages, so I could basically build for any available architecture. It will take time (qemu software emulation), but it will work (and my build machine is quite smart).
I added the Ubuntu x2go repository
The 'sudo apt-get install x2goclient" did successfully run but so far it
Really? x2goclient should not be in the armel repositories. Where did you actually install from. Maybe the old location on obviously-nice.de???
only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
pyhoca-gui is arch-independent and should also be available. As there is an old version of nxproxy in Ubuntu you should actually be able to run pyhoca-gui on armel. Could you please try that (apt-get install pyhoca-gui).
[...]
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.**de<mike.gabriel@das-netzwerkteam.de>, http://das-netzwerkteam.de
freeBusy: https://mail.das-netzwerkteam.**de/freebusy/m.gabriel%40das-** netzwerkteam.de.xfb<https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb>
On Fri, 2011-07-01 at 07:10 -0400, brian mullan wrote:
Ohhh... a big thing I also forgot to mention this IMPORTANT future use.
The $250 ($=US dollars) Nook Color tablet's GPU is the PowerVR SGX530, which is OpenGL ES 1.1/2.0.
The Barnes & Noble android did not go all out with the "stock" drivers since it's sold as "just" an ebook reader after all... ), and did not provide support for OpenGL 2.0.
BUT... a kernel can be compiled with the correct drivers for OpenGL 2.0 and actually has already been done and is available.
My Nook Tablet is running a ROM that already has OpenGL 2.0.
So although I've not tried Ubuntu 11.04 yet (I will soon) .. its my understanding of Ubuntu Unity that the OpenGL 2.0 support should enable the full Unity capabilities without having to drop back to what Canonical is calling Unity-2D (or the classical desktop --- re gnome 2).
Brian <snip> Is it correct to assume that Unity is still using X and thus will work with X2Go? Thanks - John
On Fri, Jul 01, 2011 at 13:19:08 (CEST), John A. Sullivan III wrote:
Is it correct to assume that Unity is still using X and thus will work with X2Go? Thanks - John
Unity (just like gnome-shell) uses OpenGL and therefore will not work with nxagent at all.
Unity2d however should work just fine.
-- Gruesse/greetings, Reinhard Tartler, KeyID 945348A4
Hi,
On Fr 01 Jul 2011 14:03:20 CEST Reinhard Tartler wrote:
Unity2d however should work just fine.
last time I tried this (pyhoca-gui has Unity2d support) it seemed that
the desktop shell cannot be resized (I resize my X2go desktops several
times within one session) without display problems.
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de
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On Fri, 2011-07-01 at 14:03 +0200, Reinhard Tartler wrote:
On Fri, Jul 01, 2011 at 13:19:08 (CEST), John A. Sullivan III wrote:
Is it correct to assume that Unity is still using X and thus will work with X2Go? Thanks - John
Unity (just like gnome-shell) uses OpenGL and therefore will not work with nxagent at all.
Unity2d however should work just fine.
Interesting. Brian, if you really want to push the envelope, I wonder if you can get your nook to run SPICE and thus use Unity. This is not to take away from X2Go but quite to the contrary. To enable the use of such technologies and potentially open the door to streaming video, we are thinking about trying to blend the two so that SPICE is an option in X2Go along with NX. Still working through some SPICE issues, though. Thanks - John
On Fri, 2011-07-01 at 08:18 -0400, John A. Sullivan III wrote:
On Fri, 2011-07-01 at 14:03 +0200, Reinhard Tartler wrote:
On Fri, Jul 01, 2011 at 13:19:08 (CEST), John A. Sullivan III wrote:
Is it correct to assume that Unity is still using X and thus will work with X2Go? Thanks - John
Unity (just like gnome-shell) uses OpenGL and therefore will not work with nxagent at all.
Unity2d however should work just fine.
Interesting. Brian, if you really want to push the envelope, I wonder if you can get your nook to run SPICE and thus use Unity. This is not to take away from X2Go but quite to the contrary. To enable the use of such technologies and potentially open the door to streaming video, we are thinking about trying to blend the two so that SPICE is an option in X2Go along with NX. Still working through some SPICE issues, though. Thanks - John <snip> I'm quite ignorant of tablets as I've yet to take the plunge. If one replaces Android with Ubuntu, does one still have access to important features like the screen keyboard and auto-rotating the orientation? If not, how does one type on it? Requiring a wireless keyboard would somewhat diminish the purpose of a tablet - John
thanks Mike...
Getting Ubuntu was very cool to see on an Android tablet.
If x2go can be made to work then it won't matter the power of the tablet as the server will do all the heavy lifting and the tablet will just become a very portable terminal & keyboard to the applications on any x2go server.
pyhoca-client didn't show up when I installed the Ubuntu Repository (using the ppa on the x2go wiki).
So I was assuming it wasn't yet available --- not sure how the 2 packages that did appear got built for ARM or by who.
But Python is already installed on the Ubuntu I've got on the tablet so my assumption is that pyhoca should be relatively easy to get working also.
If you have anything you want me to try let me know. I might need some guidance though if I get any errors that I don't understand<g>
Brian
On Fri, Jul 1, 2011 at 12:20 AM, Mike Gabriel < mike.gabriel@das-netzwerkteam.de> wrote:
Hi Brian,
On Fr 01 Jul 2011 03:18:47 CEST brian mullan wrote:
Then I installed Ubuntu 10.10 successfully on it. First with the LXDI
but later switched it to Gnome (just because I'm more at home with Gnome)
I probably have no influence on armel-builds on Launchpad, but I have an influence on the X2go package build process for Debian. I have already thought to build the main area in the packages.x2go.org repos for armel, as well. I use qemubuilder for build the packages, so I could basically build for any available architecture. It will take time (qemu software emulation), but it will work (and my build machine is quite smart).
I added the Ubuntu x2go repository
The 'sudo apt-get install x2goclient" did successfully run but so far it
Really? x2goclient should not be in the armel repositories. Where did you actually install from. Maybe the old location on obviously-nice.de???
only finds the following in the ARMEL repository for x2go:
*p python-x2go - python module for X2go client support* *p x2goserver - x2go server daemon scripts*
pyhoca-gui is arch-independent and should also be available. As there is an old version of nxproxy in Ubuntu you should actually be able to run pyhoca-gui on armel. Could you please try that (apt-get install pyhoca-gui).
[...]
I didn't really get the last part. Concrete question, maybe also to Reinhard: is there a possibility to build armel packages on Ubuntu launchpad?
Greets, Mike
--
DAS-NETZWERKTEAM mike gabriel, dorfstr. 27, 24245 barmissen fon: +49 (4302) 281418, fax: +49 (4302) 281419
GnuPG Key ID 0xB588399B mail: mike.gabriel@das-netzwerkteam.**de<mike.gabriel@das-netzwerkteam.de>, http://das-netzwerkteam.de
freeBusy: https://mail.das-netzwerkteam.**de/freebusy/m.gabriel%40das-** netzwerkteam.de.xfb<https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb>