Alex Varakin replied to the topic 'Re:Ubuntu MATE now works on Raspberry Pi4' in the forum. 1 week ago

andefeldt wrote: Ok, I just tried using VNC through the ethernet connection instead. That's faster, but still lagging a little bit (but it's nothing alarming). Is there a way to get the Ubuntu server to do the following concerning network connections:

1) If ethernet is connected, WiFi signal is disabled
2) If no ethernet, then enable WiFi and look for a known WiFi (eg. my own WiFi at home) and connect to it
3) If no known WiFi is found, then use the RP as an access point.

I can't even seem to figure out how to connect the Ubuntu server to my home WiFi....


Connecting to your home Wifi should be easy as long as you disable the Access Point.
Regarding the rest of your questions - Access Point of my build is based on create_ap project which is pretty popular.
I suggest reading their documentation or ask a question on their forums.
Keep in mind that it is just a shell script, so I am sure it can be easily modified for your needs.

Alex

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Alex Varakin replied to the topic 'Ubuntu MATE now works on Raspberry Pi4' in the forum. 1 week ago

gilesco wrote:

avarakin wrote:

avarakin wrote: Pi4 is now officially supported by Ubuntu, although it does not come with UI.
I developed a script which installs all imaging software I use plus KDE by default or mate as on option.
The script and instructions are available here:
github.com/avarakin/AstroPiMaker4


I had to rebuild my imaging Pi4 about a month ago and I used the latest Ubuntu Server 19.10 images.
I updated my scripts on
github.com/avarakin/AstroPiMaker4
as part of this rebuild.
The issues I observed in the past are solved now and after several imaging sessions, I can conclude that the system is very fast, stable and reliable.
Feel free to use and/or fork and let me know if you see any issues.

Looks like the good old Ubuntu Mate distribution is still lacking support for RPi4. I don't think I will ever go there again - much safer and faster getting the images directly from Ubuntu, given that all groundwork of building the system from Ubuntu Server image is now completed.

BTW, Mate is getting really long in the tooth and I am switching to Gnome 3 on my computers.
It is running surprisingly well on RPi4.
"Dash to Panel" and "System Monitor" Gnome extensions are making Gnome work very similar to Mate.
They are included as part of my script.

Alex


Interesting, is the AstroPiMaker4 script only for the Pi4 or also for other Pi's?

I have a Pi4 running Astroberry, but also a number of Pi3B+ which I might be able to test this stuff on (if it works).

Have you thought about xrdp instead of VNC? For me RDP appears to be more responsive graphically than VNC.


I do not see a reason why it would not work - it is based on the standard Ubuntu image which supports Pi3 too.
I tried xrdp in the past but I did not like it. I also tried NoMachine long time ago, also had some issues.
I feel that given that VNC is available out of the box and always works for me , I did not try anything else recently.

Alex

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Alex Varakin replied to the topic 'Re:Ubuntu MATE now works on Raspberry Pi4' in the forum. 1 week ago

andefeldt wrote: Ok, I installed everything on 32bit Ubuntu using the AstroPiMaker4 file. I rebooted after creating the AP and loaded up the VNC viewer from my Mac. That did NOT look good! It looks like something from the late 80's or start 90's when it comes to color and graphic and text - like something from the good old Commodore 64 days. Text not clear and everything running very slow. I didn't experience this with my old setup (using Raspbian and the AstroPi3 script). Am I missing something here?

Anders


Did you configure VNC viewer to use 24 bit color and best quality? Can you share screenshot?

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Alex Varakin replied to the topic 'Re:Ubuntu MATE now works on Raspberry Pi4' in the forum. 1 week ago

AtM wrote: Alex,

Are you still getting the Ubuntu hack from the James Chambers source?
I saw on the Ubuntu site ( ubuntu.com/download/raspberry-pi ) that regular 32bit and 64bit server builds (18.04.04) for Pi4 are up for download.

Cheers,
Arjan


I used to use the hack but is no longer needed.
My latest script under github.com/avarakin/AstroPiMaker4 is using official 32 bit Ubunty 19.10 server installer.

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Alex Varakin replied to the topic 'Re:Ubuntu MATE now works on Raspberry Pi4' in the forum. 1 week ago

andefeldt wrote: I decided to cancel as I had a problem with the AP creation (not sure what happened). Creating the AP just froze - are you supposed to interact somehow?

I’ve started all over with the 32bit Ubuntu.

Anders


No, it should not freeze. I think you made the right decision - there is not much benefit from 64 bit here.

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Alex Varakin replied to the topic 'Re:Ubuntu MATE now works on Raspberry Pi4' in the forum. 1 week ago

Anders,
Issues with ASTAP are expected given that it is not installed from repositories.
How about kstars and indi - are they installing and running?

Alex

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Alex Varakin replied to the topic 'Ubuntu MATE now works on Raspberry Pi4' in the forum. 2 weeks ago

andefeldt wrote: Hi,
I've just got a RP4 4GB that I want to use instead of my current 1GB (or is it 2GB?) RP4. I decided to give the AstroPiMaker4 script a spin. Is there a particular reason that it uses the 32bit Ubuntu version and not the 64bit?

Anders


Good question. In the past, 64 bit was challenging. Keep in mind that the script does not care if it is 32 bit or 64 bit, so feel free to try and report back.
Before doing this, please check if PPAs have 64 builds of kstars and other software.

Alex

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Alex Varakin replied to the topic 'Ubuntu MATE now works on Raspberry Pi4' in the forum. 2 weeks ago

El Corazon wrote: I am not sure whether there is really anything substantially different between the official Ubuntu MATE support now and the prior install from the server and sequential updates. I suspect the outcome is pretty much the same.
I did it the old fashioned way, starting from the server and sequentially building up the system and my system is also quite stable now. No reason for me to switch that I can see.
But I am looking forward to hearing the experience others might have.

Of course, by now the official Ubuntu system is 20.04.....


Agreed, using official Ubuntu Server as a starting point is the way to go.
Using Ubuntu 20.04 might be a little adventurous - it is a daily build and I doubt that PPA builds of Kstars and INDI are fully functional at this point.
Just a few months ago PPA builds for 19.10 of INDI were partially broken, i.e. some drivers were not available and thus indi-full was not installing.

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Alex Varakin replied to the topic 'Ubuntu MATE now works on Raspberry Pi4' in the forum. 2 weeks ago

avarakin wrote: Pi4 is now officially supported by Ubuntu, although it does not come with UI.
I developed a script which installs all imaging software I use plus KDE by default or mate as on option.
The script and instructions are available here:
github.com/avarakin/AstroPiMaker4


I had to rebuild my imaging Pi4 about a month ago and I used the latest Ubuntu Server 19.10 images.
I updated my scripts on
github.com/avarakin/AstroPiMaker4
as part of this rebuild.
The issues I observed in the past are solved now and after several imaging sessions, I can conclude that the system is very fast, stable and reliable.
Feel free to use and/or fork and let me know if you see any issues.

Looks like the good old Ubuntu Mate distribution is still lacking support for RPi4. I don't think I will ever go there again - much safer and faster getting the images directly from Ubuntu, given that all groundwork of building the system from Ubuntu Server image is now completed.

BTW, Mate is getting really long in the tooth and I am switching to Gnome 3 on my computers.
It is running surprisingly well on RPi4.
"Dash to Panel" and "System Monitor" Gnome extensions are making Gnome work very similar to Mate.
They are included as part of my script.

Alex

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Alex Varakin replied to the topic 'Current Selection Wisdom on INDI Focuser Software?' in the forum. 2 months ago

MyFocuserPro has an INDI driver so it should be possible to control the whole thing with Ekos or CCDciel.
The simplest hardware option for myfocuserpro is Uno with motor shield. No soldering, just plug in.

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Alex Varakin replied to the topic 'Raspberry real time' in the forum. 2 months ago

Here is another approach which does not require additional hardware: setup laptop as ntp server and get RPi to sync time from laptop.

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Alex Varakin created a new topic ' Nightly Kstars crashing while doing ASTAP plate solving' in the forum. 2 months ago

Hi,
I installed the latest nightly build using PPA and noticed that Kstars crashes while doing ASTAP plate solving.
I did not try astrometry solver, it may have the same issue too.
The problem went away once I switched back to the stable version.
My system is RPi4, Ubuntu 18.04.

Alex

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Alex Varakin replied to the topic 'ASTAP astrometry integration' in the forum. 4 months ago

Just to report results of my testing - I used ASTAP couple of nights and so far no issues, except if I try to go to an image, taken from previous session which has long exposure of 1200s. Looks like ASTAP is finding too many stars and gets lost.
My work around is - if I plan to shoot same object multiple nights (which I normally do), I save a "go to" Lum image with bin 2 and 5s exposure and then use it for targeting during subsequent sessions.

Many thanks to Han and Jasem for integrating ASTAP! So far it seems more reliable and much faster at solving, as long as you dont ask it to do blind solving.

Alex

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Alex Varakin replied to the topic 'Ubuntu MATE now works on Raspberry Pi4' in the forum. 5 months ago

calberts wrote: Hi

This all above is als about ubuntu 18.04 but what about ubuntu.com/download/raspberry-pi 19.10 its fully supported RP4 . Did some already try Kstars/Indi on this version?
and what desktop do you advise?.


Chris,
The script, which I shared above github.com/avarakin/AstroPiMaker4 is based on the distro you are referring to.
My script installs both Mate and Plasma Desktop. I switch between them once in a while, they both work fine, it is just a matter of preference.

Alex

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