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by oth
Thu May 14, 2020 8:11 am
Forum: Staffroom, classroom and projects
Topic: Howto maintain and update PiServer PXE Images?
Replies: 0
Views: 72

Howto maintain and update PiServer PXE Images?

Hello,
how do you maintain und keep your Images up to date?
Is there anything that I need to consider?
Can I just use the PiServer Shell and update the OS through apt get update && apt get upgrade?
Thanks for any suggestions
:)
by oth
Mon Apr 20, 2020 10:03 am
Forum: Staffroom, classroom and projects
Topic: Solved: USB Ethernet Gadget not working on Raspian / PiServer?
Replies: 1
Views: 370

Re: USB Ethernet Gadget not working on Raspian / PiServer?

Hi, I got it working I added the following entry into /etc/network/interfaces auto usb0 allow-hotplug usb0 iface usb0 inet static address 10.0.1.10 netmask 255.255.255.0 Now I can use the open-roberta connector and the students can work with the EV3s using lab.open-roberta.org in e.g. Chromium :)
by oth
Fri Mar 20, 2020 1:26 pm
Forum: Staffroom, classroom and projects
Topic: Solved: USB Ethernet Gadget not working on Raspian / PiServer?
Replies: 1
Views: 370

Solved: USB Ethernet Gadget not working on Raspian / PiServer?

Hi, I want to use the lab.open-roberta.org in our classroom and allow our pupils the connect our EV3 bot to their RP4 via USB. The Lego EV3 acts as an USB Ethernet Gadget. Once the EV3 is connected to the Raspberry PI the the "usb0" network interface should show up in the "Wireless & Wired Network S...
by oth
Wed Mar 11, 2020 3:43 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot reliably

I upgraded the Classroom to RPi4 and it works like a charm!
thanks for all the valuable help
:)
by oth
Tue Dec 17, 2019 8:14 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot reliably

would a Pi4 with the beta netboot work?
by oth
Sun Dec 15, 2019 10:42 am
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot (UPDATE)

Can you ask your network admin, to configure DHCP server to give each Pi an unique fixed IP, and see if it still occurs then? Not sure if that helps any though. May also be a bug in the bootrom, in which it steals a DHCP offer that is actually meant for another Pi booting at the exact same time. Th...
by oth
Sat Dec 14, 2019 1:09 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot (UPDATE)

Does the problem also appear if you power them up one by one instead of simultaneously? I tested this just now. No, the problem does not appear if I power the Pis up one by one. What is the output of "cat /proc/net/arp" if you execute it 15 seconds or so after powering up the Pi's? There aren't any...
by oth
Fri Dec 13, 2019 4:42 pm
Forum: Staffroom, classroom and projects
Topic: [solved*] PiServer and Arduino
Replies: 8
Views: 1196

Re: [solved*] PiServer and Arduino

Hi, thank you so much for the help and suggestions. I will try this next week. Right now the apt-get version worked and our pupils were able to program the Arduino boards. I will test your fix on a separate image and test before applying it to the classroom image. I still need to fix my unreliable b...
by oth
Fri Dec 13, 2019 4:39 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

tail -1000 /var/log/syslog Dec 13 17:22:31 raspberryserver nslcd[795]: [44a45c] <passwd="Oemer"> (re)loading /etc/nsswitch.conf Dec 13 17:22:36 raspberryserver ntpd[675]: 217.145.98.135 local addr 172.16.1.70 -> <null> Dec 13 17:22:38 raspberryserver ntpd[675]: 88.99.216.194 local addr 172.16.1.70 ...
by oth
Fri Dec 13, 2019 4:38 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Hello, after the success of being able to boot my test Raspi, I asked the IT guy to apply the same settings for the remaining 7 Pis. Unfortunately, they do not boot up reliably. The Pis just randomly boot up. Sometimes one Raspi boots up after several power offs. I want to mention that our Pis are c...
by oth
Thu Dec 12, 2019 4:41 pm
Forum: Staffroom, classroom and projects
Topic: [solved*] PiServer and Arduino
Replies: 8
Views: 1196

Re: PiServer and Arduino

Doing the manual install through install.sh results in the Arduino IDE appearing in the Menu. But It won't startup fully. It just shows the splash screen and then terminates. I solved the issue by just installing the Arduino IDE through apt in the chroot. The version is not up to date. apt install a...
by oth
Thu Dec 12, 2019 6:45 am
Forum: Staffroom, classroom and projects
Topic: [solved*] PiServer and Arduino
Replies: 8
Views: 1196

[solved*] PiServer and Arduino

Hello, my PiServer classroom is constantly improving, thanks to the help from this forum! One piece missing is the Arduino IDE. Can anyone point me in the right direction on how to install the Arduino IDE ? I failed - and am aware that this might not be a PiServer issue. This might still interest ot...
by oth
Wed Dec 11, 2019 6:29 am
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Hello, the IT guy disabled the PXE Server OPSI for my Pis MAC. Now the Pi boots from Piserver :) I do get some error messages at first about the the tftp server not finding some files. But it works. tail -100 /var/log/syslog Dec 11 07:22:23 raspberryserver dnsmasq[2068]: compile time options: IPv6 G...
by oth
Tue Dec 10, 2019 3:42 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Yes, I will ask the IT guy to do it on Thursday.
Thanks for the help :)
by oth
Tue Dec 10, 2019 3:12 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Our IT guy setup a fixed IP for one of my Pi 3B with MAC b8:27:eb:78:8d:1d The fixed IP should be 172.16.1.158 The Pi still does not boot. Debugging the Network from the Pi side (https://github.com/raspberrypi/firmware/wiki/USB-MSD-and-network-boot-debugging) I prepared a network debug SD card with ...
by oth
Mon Dec 09, 2019 6:54 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Thank you for the help. I will update once the recommendations are implemented.
by oth
Mon Dec 09, 2019 2:32 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

My classroom server has the IP 172.16.1.70 Here is the info from: tail -10 /var/log/syslog Dec 9 15:23:30 raspberryserver dnsmasq-dhcp[2744]: 3989040218 vendor class: android-dhcp-9 Dec 9 15:23:30 raspberryserver dnsmasq-dhcp[2744]: 3989040218 client provides name: ZTE-Blade-A7-2019 Dec 9 15:23:30 r...
by oth
Sun Dec 08, 2019 9:40 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Using a SD Card to boot OS and get an IP via DHCP works.

I will look into the errors in syslog tomorrow.

Strangely, during countless reboot attempts I got one Raspi to boot into Debian via network boot. But after another reboot it didn't work.
I will update once I have more info
by oth
Sun Dec 08, 2019 12:58 pm
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Re: Piserver DHCP Proxy - Clients do not boot

Hi,
dhcpcd.conf is untouched and has not static IP settings.
The Network Preferences is set to auto config.

Any ideas I could try?
I am now in the process of getting an USB to Serial Adapter to debug the Clients via serial terminal.

networksettings.jpg
networksettings.jpg (201.41 KiB) Viewed 2909 times
dhcp.jpg
dhcp.jpg (214.86 KiB) Viewed 2906 times
by oth
Sun Dec 08, 2019 10:06 am
Forum: Staffroom, classroom and projects
Topic: Piserver DHCP Proxy - Clients do not boot reliably
Replies: 24
Views: 2949

Piserver DHCP Proxy - Clients do not boot reliably

Hi everyone, Previously I asked for help ( https://www.raspberrypi.org/forums/viewtopic.php?f=48&t=256826) on how to setup a classroom without access to the school network and internet. This setup worked - but now I want to upgrade my classroom to enable the clients to access the school network + in...
by oth
Thu Dec 05, 2019 9:22 am
Forum: Staffroom, classroom and projects
Topic: Piserver and Eclipse
Replies: 2
Views: 782

Re: Piserver and Eclipse

Thank, you. This is a good idea. I will have a separate Debian Stretch image for Eclipse Dev. I installed the image that you did recommend. It works like a charm. Eclipse on Stretch is Version 3.8. It is quite responsive and works well on our Pis. The reason for working with Eclipse is that it suppo...
by oth
Wed Dec 04, 2019 5:26 pm
Forum: Staffroom, classroom and projects
Topic: Piserver and Eclipse
Replies: 2
Views: 782

Piserver and Eclipse

Hi everyone, for a classroom project I need Eclipse because it supports a plugin to work with Lego NXT robots. Unfortunately installing eclipse on piserver does not provide a working eclipse. Does anyone know how to get it working? It seems as if Eclipse which gets installed through apt-get install ...
by oth
Fri Nov 29, 2019 2:16 pm
Forum: Staffroom, classroom and projects
Topic: PiServer and Lego NXT lejos ant compile error
Replies: 3
Views: 772

Re: PiServer and Lego NXT lejos ant compile error

Thank you so much for the replies. Yes, you were right! I did not install "Raspbian Full" as an operating system. I now deleted the old Raspian and chose Raspbian full. I also changed the build.xml to refer to the correct path as you suggested: I was then able to build with ant!! I will proceed to g...
by oth
Thu Nov 28, 2019 8:21 pm
Forum: Staffroom, classroom and projects
Topic: PiServer and Lego NXT lejos ant compile error
Replies: 3
Views: 772

PiServer and Lego NXT lejos ant compile error

Hi Everyone, I successfully setup a PiServer classroom. Now I want to install the NXT lejos for our pupils. I used the PiServer Configuration Program to get a shell on the Raspian Image and followed this tutorial: http://stefanshacks.blogspot.com/2015/03/lejos-on-raspberry-pi-including-usb-and.html ...
by oth
Thu Nov 28, 2019 8:12 pm
Forum: Staffroom, classroom and projects
Topic: PiServer setup for classroom
Replies: 3
Views: 830

Re: PiServer setup for classroom

Thanks,
everything is working now. I setup my system just as described and all but one Raspi boot!
I guess that one model is somehow broken.

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