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INDI Library v1.7.9 Released (23 Jun 2019)

INDI Library v1.7.9 is mostly a maintenance release to fix a few bugs in several drivers.

Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

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Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2 was created by jerry

So if I were to jump to an ODROID-N2 from Stellarmate on a RPi3B+ would just adding
deb http://ppa.launchpad.net/mutlaqja/indinightly/ubuntu bionic main 
deb-src http://ppa.launchpad.net/mutlaqja/indinightly/ubuntu bionic main
as described at
launchpad.net/~mutlaqja/+archive/ubuntu/...field.series_filter=
let me continue with the bleeding edge versions as I am now with Stellarmate?

I expect that it would be on me to implement VNC and the nice AP/local host fallback that Jasem has given us in Stellarmate?

Also I see that the nightly builds on that site appear to target multiple Ubuntu releases from 16.04 - 19.04. Does that mean that one could choose to upgrade Ubuntu releases in advance of what Jasem is supporting on Stellarmate or would that be inviting disaster?

Thanks
10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS v1.4 on RPI3B+ using kstars-bleeding
2 weeks 6 days ago #39872

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Replied by Spartacus on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

Hi Jerry,

I use an Odroid XU4 which is significantly faster than RPi. Just follow the instructions on the tutorial here indilib.org/support/tutorials/169-ekos-o...-complete-guide.html and load Ubuntu Mate
Create a static IP address as this makes headless access really easy. Use Team Viewer rather than Real VNC as it appears to work better with the Odroid. I cannot explain why but I tried a number of viewer programs and Team Viewer was the one that worked consistently. Real VNC is the pick for the RPi.
Update to the latest stable version of KStars. Resist the temptation of continual upgrade with nightly builds unless things are not working or if a new version adds a significant function that you need.
Mike
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2 weeks 5 days ago #39897

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Replied by fewayne on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

I'm tempted, but the AP/join-local-wifi automatic behavior is awfully hard to give up for someone who images both with and without WiFi access.

And I'd have to use two USB slots for BT (focuser) and WiFi. But perhaps the ODroid would see the GPS dongle and mount when plugged into my powered hub. The Pi does not.
2 weeks 5 days ago #39913

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Replied by jerry on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

apparently network priority is built into ubuntu-mate ubuntu-mate.community/t/network-priority-change/17710
10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS v1.4 on RPI3B+ using kstars-bleeding
2 weeks 5 days ago #39915

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Replied by Ihoujin on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

One review of the Odroid-N2 found that connecting high frequency WiFi devices to the USB3 ports can cause an instability. That includes WiFi modules and wireless keyboards and mouse.
The workaround for it for now was to connect such devices to the micro USB2 port via an OTG cable and hub.

I am currently waiting for more the bugs to be worked out in the available Linux distributions made for the Odroid-N2 before I pull the trigger on upgrading to it.
INDI/KStars on Raspberry Pi 3B+
Lubuntu 16.04
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG @280mm Guide Scope
PHD2
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.
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Last edit: 2 weeks 5 days ago by Ihoujin.
2 weeks 5 days ago #39916

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Replied by jerry on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

I use an Odroid XU4 which is significantly faster than RPi. Just follow the instructions on the tutorial here indilib.org/support/tutorials/169-ekos-o...-complete-guide.html and load Ubuntu Mate
Create a static IP address as this makes headless access really easy. Use Team Viewer rather than Real VNC as it appears to work better with the Odroid. I cannot explain why but I tried a number of viewer programs and Team Viewer was the one that worked consistently. Real VNC is the pick for the RPi.
Update to the latest stable version of KStars. Resist the temptation of continual upgrade with nightly builds unless things are not working or if a new version adds a significant function that you need.
Mike

Hi Mike,
So I have a new Odroid-N2 up and running. Kstars/Phd2 are installed and running (I haven't configured my drivers yet). I have an Amazon 5Ghz wifi USB 3 Hub. www.amazon.ca/Realtek-RTL8192AU-Wireless...ntenna/dp/B078NSSM7W which I configured from ubuntuforums.org/showthread.php?t=2394372&page=3
export ARCH=arm64
sudo apt update
sudo apt install -y git
git clone https://github.com/EntropicEffect/rtl8822bu.git
cd rtl8822bu
make
sudo make install
sudo modprobe 88x2bu

I tried installing TeamViewer from their website, but the gdeb installer issued an error: needed libc6 > 2.17 which as a ubuntu noob I couldn't resolve.
I was able to install vncserver using www.digitalocean.com/community/tutorials...-vnc-on-ubuntu-18-04 . It connects, but just gives a blank grey screen, which I can't seem to get around.

Do you have any further suggestions?

Thanks
Jerry
10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS v1.4 on RPI3B+ using kstars-bleeding
1 week 3 days ago #40181

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Replied by Spartacus on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

Hi Jerry,
So you should install Team Viewer host on the odroid and TeamViewer (viewer) on any of your machines that you want access the Odroid from.
I thought the GLIBC 2.7 was already part of the Ubuntu Mate 18.04 but you will also need to install a "QT5 package" here are detailed instructions from the Team Viewer website . Pick the ARM installation and follow the instructions from this webpage.
Y
community.teamviewer.com/t5/Knowledge-Ba...-for-Linux/ta-p/6318
Get back if you hit snags. I don't remember having any problems when I installed it but that was a while ago now.
Team Viewer drops out a few times at the start but is more stable the longer you use it for.
I tend to use it to start up and do stuff when I at the scope (polar alignment etc) then close Team Viewer down (leaving KStars/INDI/EKOS running) and go inside where I use the KStars for Windows on my desktop using the remote profile (I can still remote in using team viewer if needed). The Windows GUI is nicer and better resolution so I tend to prefer this when I am at home.
I could not get the vnc server going either.
Real VNC is easy on RPi but not supported on Odroid.
You can SSH into terminal from windows or use remote desktop in Windows (although this for some reason always defaulted to a gnome desktop and I just couldn't get it to change) but to be honest I have always found Team Viewer to give the best compromise in stability and speed and resolution.
Let me know if you are still having problems and I will go through the process step by step. Make sure your Ubuntu is updated but if you are still getting the GLIBC 2.17 error it may need to be installed separately although I don't remember it being necessary for me.

Mike
1 week 2 days ago #40195

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Replied by Spartacus on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

The GLIBC version will be higher than 2.17
I think that 2.27 is the version for Ubuntu 18.04
So update using
sudo apt-get update
then
sudo apt-get install libc-bin=2.27-3ubuntu1

This should allow TV to work. But follow the instructions on the previous post website link.

Mike
1 week 2 days ago #40196

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Replied by jerry on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

Spartacus wrote: The GLIBC version will be higher than 2.17
I think that 2.27 is the version for Ubuntu 18.04
So update using
sudo apt-get update
then
sudo apt-get install libc-bin=2.27-3ubuntu1

This should allow TV to work. But follow the instructions on the previous post website link.
Mike


an apt-get install indicates that libc-bin is already the newest version (2.2.7-3ubuntu)
when running the TV pgk TeamViewer_14.3.4730_amd64.deb I still get the same error: Dependency is not 'satisflable':libc6(>=2.17)

Is there a way to create a symlink somewhere to force the install to recognize the newer libc6?

P.S. I was able to get a tightvnc server running reasonably well (no grey screen), but my sysytemd service for it will start it, but not after a reboot.

<code>/etc/systemd/system/vncserver@.service
[Unit]
Description=Start TightVNC server at startup
#After=syslog.target network.target
After=syslog.target network.target

[Service]
Type=forking
User=odroid
Group=odroid
WorkingDirectory=/home/odroid
#RestartSec=35
#Restart=on-failure

PIDFile=/home/odroid/.vnc/%H:%i.pid
ExecStartPre=-/usr/bin/vncserver -kill :%i > /dev/null 2>&1
ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 :%i
ExecStop=/usr/bin/vncserver -kill :%i
</code>

Any help you might be able to provide would be greatly appreciated.
10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS v1.4 on RPI3B+ using kstars-bleeding
Last edit: 1 week 2 days ago by jerry.
1 week 2 days ago #40205

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Replied by Spartacus on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

Hi Jerry,


Isn't the Odroid N2 an ARM processor? :)
You should be using the ARM not AMD package of TeamViewer Host on the Odroid.
Go here
www.teamviewer.com/en/download/linux/?pi...EfHGUX8aAqY1EALw_wcB
Scroll down to the Team Viewer Host section. Download and install the ARMV7 32 bit and try again

I think that this version will work on the N2 but there is a fix for the 64bit ARMV8 but only try it if the V7 does not work
I found it on the Team Viewer forum here
community.teamviewer.com/t5/Linux/armv8-...-build/m-p/9916#M338

dpkg --add-architecture armhf
apt update
apt-get install libxtst6:armhf
dpkg -i teamviewer-host_armhf.deb
apt install -f
teamviewer --daemon enable

I am pretty sure that the armV7 32 bit version will work as it has been upgraded since this question was asked.

Get rid of the AMD version as it should not work on the Odroid
Persevere it should all work!
Mike
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1 week 1 day ago #40217

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Replied by jerry on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

Spartacus wrote: Hi Jerry,
Isn't the Odroid N2 an ARM processor? :)
You should be using the ARM not AMD package of TeamViewer Host on the Odroid.
Go here
www.teamviewer.com/en/download/linux/?pi...EfHGUX8aAqY1EALw_wcB
Scroll down to the Team Viewer Host section. Download and install the ARMV7 32 bit and try again

I think that this version will work on the N2 but there is a fix for the 64bit ARMV8 but only try it if the V7 does not work
I found it on the Team Viewer forum here
community.teamviewer.com/t5/Linux/armv8-...-build/m-p/9916#M338

dpkg --add-architecture armhf
apt update
apt-get install libxtst6:armhf
dpkg -i teamviewer-host_armhf.deb
apt install -f
teamviewer --daemon enable

I am pretty sure that the armV7 32 bit version will work as it has been upgraded since this question was asked.

Get rid of the AMD version as it should not work on the Odroid
Persevere it should all work!
Mike

Thanks MIke,
So I downloaded the arm version (duh!) teamviewer-host_14.3.4730_armhf.deb
it complained about the architecture, so as suggested I added
dpkg --add-architecture armhf
apt update
and tried the install again.

Same error about libc6 : Error: dependency is not satisfiable: libc6(>=2.17) so I must have introduced a system configuration error somewhere else.
Thanks, I'll plug away at this. I may start with a fresh odroid-n2 install.
10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS v1.4 on RPI3B+ using kstars-bleeding
1 week 1 day ago #40239

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Replied by Spartacus on topic Noob question about Kstars/EKOS on non-stellarmate systems e.g. ODROID-N2

Hi Jerry,

Sounds like a good plan. Sometimes a fresh start is the way to go. I get the install to a point where I have a basic setup with KStars then do an image of the SD so that if anything goes wrong in the future I can load everything back on including astrometry etc. It is a good insurance policy. I will continue to ponder on the problem .
I am having my own issues with a triplet apo scope with odd optics and have just bitten the bullet and re-centred the lens elements (scary stuff but the star test now looks perfect -WoHoo!!).
Stay in touch and keep posting as I am sure other people will start to use the N2 and your experience will help others.

Mike
1 week 1 day ago #40250

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