djwujek wrote

I know I wrote in the wrong section, I'm very sorry. I read the requirements but I need to adopt one router and a 5-port switch so I don't think the controller needs 4GB of RAM. Can someone help me why the controller doesn't start with this amount of RAM?

  @djwujek 

Rpi4b with 1GB ram will not work, you must have at least 2GB to be able to start Omada version 5.15.xx, I would recommend Raspberry Pi5 with at least 4GB on the latest controller which is quite heavy compared to previous versions.

Unfortunately, in my country, the price of the OC200 controller itself is the cost of a router + switch, so it is a completely unprofitable purchase, which is why I put the controllers on Raspberry pi4B. I think it would be possible to run it because, for example, the OC200 has a dual-core processor and 512 RAM and the controller can be run on it, but on four cores and 1 GB of RAM it is not, it is nonsense. For me, Tp-Link specifically limits the possibility of using lower-performance Linux-based controllers just to make money on their devices. 

Besides, older versions of the controller worked on 1GB of RAM and the new ones don't - very strange.

I will probably get banned for expressing my opinion ;p

  @djwujek 

It's not strange at all.
You can run Omada on almost any hardware but you need to have 2gb I recommend 4gb as a minimum, the number of cores on the processor doesn't matter so much in small home solutions. If you have an old PC then use it, it can be installed with ubuntu or windows, with windows you will need 6-8Gb, there are more and more functions so the memory requirement is getting bigger, that's how it is with everything. my first PC had 640Kb of ram, now a PC must have at least 8gb to function.

  @djwujek 

I did a test here on a 2GB Raspberry Pi4 with Raspberry Pi OS, once everything is installed it uses 1.2GB (but it will probably increase). If you create a larger swap file then you might be able to do it on yours, but it will be very slow.

Clean install only OS

And with Omada controller 5.15.20.12 installed.

Try and create a 512 MB Swapp file. or install this OS, then a 511 Mb Swapfile is created.

It will be slow, but if you have an external SSD disk that you can boot from, it will probably be faster.

I have installed os lite x64 on my pi according to this tutorial: https://community.tp-link.com/en/business/forum/topic/528450 The installation is going smoothly but the controller won't start. I don't want to return the raspberry with 1gb ram because they won't accept it for return to the store. I want to use it for the er605 and a small poe switch.

  @djwujek 

I don't know why it won't start, there could be a lot of things causing problems but as you can see, Omada needs 1.2 GB of RAM to start and it increases gradually so until you solve the RAM problem there's no point in troubleshooting it any further. But try creating a swap file of 1 GB and see if you can start the controller then.