My modem has a lot of strange problems RB941-2nd

hey guys I bought a Mikrotik (rb941-2nd) modem that I want to install using the OpenWrt (ver18.06.3) method, but it is very complicated

1- The first error is when installing the sysupgrade that gives this error : The uploaded file does not contain a supported format ( I am sure the file is correct )

The way I found in this forum was to do it through SSH, but it gives such an error in SSH : wget: SSL support not available, please install one of the libustream-.*[ssl|tls ] packages as well as the ca-bundle and ca-certificates packages.

And when I want to install the prerequisites, it gives an error that the internet is not connected

I'm a newbie and I really don't know much, please explain in a way that I can do


according to wiki
is the first file which you need to transfer in netboot mode

then, you need to access from pc, and transfer
to device

how you will transfer this file, depend if there is Luci in initramfs then use WEB or, if there is no Luci, you need to SCP from your PC to device

here is wiki:

thanks for anwser

I installed this version, but when I install the file sysupgrade, it freezes in verify mode

And then it goes back to its own version of the router

did you try to SCP sysupgrade file from your PC to router /tmp/sysupgrade.bin and from there, from CLI execute

sysupgrade -n /tmp/sysupgrade.bin

How can I transfer this file?

Currently, only Openwrt is installed and that is incomplete

no, OpenWRT is booted :slight_smile: in RAM, not installed
according to linked WIKI:

scp openwrt-*mikrotik*-squashfs-sysupgrade.bin root@

this command need to be executed from PC to transfer file to router /tmp
or if you are on Windows, then use winscp or similar

goal is to transfer sysupgrade file in /tmp folder
and there try sysupgrade from CLI

I downloaded the software you mentioned, but I don't know how to work with it and connect the router to it. I'm using putty to run command line

i can move file to router . Now should I run it with this command?

sysupgrade -n /tmp/sysupgrade.bin

It gives a killed error

Then i am out of ideas

looks like device is run out of memory or ... idk

sorry, could not help you further

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what is the output of the following:

ubus call system board

Instead of screenshots, please copy/paste the output and use the "Preformatted text </>" button for logs, scripts, configs and general console output.
Thank you! :slight_smile:

oh sorry men . this is my first time coming here

What should I do with this router? I really did not find any solution, I searched everywhere

Let's see the output of the command I asked for earlier.

root@OpenWrt:~# ubus call system board
        "kernel": "4.14.275",
        "hostname": "OpenWrt",
        "system": "Qualcomm Atheros QCA9533 ver 2 rev 0",
        "model": "MikroTik RouterBOARD RB941-2nD",
        "board_name": "rb-941-2nd",
        "release": {
                "distribution": "OpenWrt",
                "version": "19.07.10",
                "revision": "r11427-9ce6aa9d8d",
                "target": "ar71xx/mikrotik",
                "description": "OpenWrt 19.07.10 r11427-9ce6aa9d8d"

it looks like you've successfully upgraded to 19.07.10.

Now you can upgrade to 21.02. This will involve a transition from ar71xx > ath79 target, so you'll have to force this upgrade.

How should I do this? Does my modem support it?

Ah... actually, looking at the device info page, 19.07.10 is the last supported release for that device.

Since 19.07 is EOL and unsupported, you should consider new hardware.

I bought this router today

hi @psherman

hi is still in netboot / initramfs
and when hi try to issue sysupgrade, command is failing, both from CLI and LuCI

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