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Botspot / vdesktop

Run a second instance of Raspbian inside Raspbian.
GNU General Public License v3.0
125 stars 21 forks source link

Issues #2

Closed oksanaNeil closed 4 years ago

oksanaNeil commented 4 years ago

This is a very good idea. I got it working with a Raspberry pi Buster .img file from one of my working Raspberry pi computers. I used my normal Raspberry pi 4 with a buster image as the 'host'. I noted the following:

  1. http pages browse ok. https seem to have a TLS 'unable to get local issuer certificate' problem and don't open.

  2. Complains of SSH duplicate port 22. Changed this to 12148 in /etc/ssh/sshd_config and it stopped complaining! https still don't work.

  3. It seemed to pick up the same IP as the host?

  4. I compiled freeCAD on the guest machine (my first compile) because it is a problem to get to work on RasPi4, Buster. It errors on trying to run : 'Program received signal SIGSEGV, Segmentation fault.

    0 /lib/arm-linux-gnueabihf/libc.so.6(__default_sa_restorer+0) [0xb0c8c120]'

  5. Running a 3d printer slicing program called Cura which is an '.AppImage' file it failed to run.

When I closed the guest and flashed the .img file to a SD card and ran the image in my Raspberry pi 4 the image worked fine, new dhcp IP, https ok, FreeCAD and Cura programs worked fine.

I am new to Linux etc but the idea of running experiments in a guest window is really good.

Botspot commented 4 years ago

In response to your comments:

  1. Before Buster, the guest had a strong internet connection. But once Buster rolled out, the guest usually doesn't detect any internet devices such as Ethernet or WiFi. This is a known bug, but I am unaware of any solutions.
  2. That's normal. The guest is configured to "share" the Ethernet connection with the host. So since both OS'es are on the same device, both will appear to have the same IP address.
  3. You say FreeCAD doesn't compile on Buster. And you tried to compile it within the guest but it didn't work. Didn't you say that the guest is also Buster so what's the difference?
  4. Does that 3d printer program run correctly outside of the guest? It could be due to a lack of OpenGL support in the Xephyr window.

By the way, thank you for reaching out. I spent months developing and perfecting Vdesktop, and was sorely disappointed when only 2 people seemed interested on the forums.

Botspot commented 4 years ago

Looks like FreeCAD isn't working for others either. So I see no reason why Vdesktop is at fault here.

oksanaNeil commented 4 years ago

Hello Botspot,

Thanks for quick reply /comments. Don't be disappointed I like the idea. I started doing things for pure self satisfaction years ago stick with it !

  1. Internet connection. I tried giving it a fixed IP by using it's MAC address if I remember right but it did not seem to work. I thought the same IP as the host might have been something to do with why I couldn't seem to get certificates right for https. Maybe I will fiddle with NAT or something. Still thinking on this.

  2. On the FreeCAD forum a bit later than what you found they got FreeCAD to compile and work but a slightly older version and with old python that's not being used in the future. This less than ideal solution is good enough for me.
    I'm looking how to 'capture' this compile and all it' s dependencies into a 'package' so I can easily put it back onto my other raspi4 machines. Something like 'virtual machine snapshot' or a 'saved sandbox image' or an .AppImage file. Here is the forum: https://forum.freecadweb.org/viewtopic.php?f=42&t=37458&start=90

4.The 3D printer slicer program is in .AppImage format and works ok on a raspi4. Your idea about OpenGL maybe something to do with why it does not work in your 'guest'.

I don't want to compile it on my raspi4 main machine because I will probable 'trash' it while messing about ! I am not very good with Linux, I spent 20 years on Windows doing software packaging and distribution, .msi & AppV packages, for large clients for my sins...

Remember self satisfaction is why you do a job, earning a 'crust' comes second.