Meraki MR32 u-boot downgrade?

[Error2k]

Hey,

Im wondering if there ist a possibility to root the MR32.
My u-Boot version is incompatible. Is 2012.10. But I’m able to access the shell.
Is it possible to downgrade the U-Boot?

Or is there jo possibility to get my MR32 working?

Also I found openWRT file for the mr32. It’s called openwurt-bcm53xox-generic-meraki_mr32-squashfs.trx.
How to use this one?

[frollic]

did you read https://openwrt.org/toh/meraki/mr32#installation ?
doesn't mention a downgrade, but how to install openwrt.

[Error2k]

Yes
I did all. I was so close. I got the MR32 download the bin via ftp but it wound install.

I talked in a different topic about my problems.

And I think there is no possibility to get an OpenWRT firmware for the MR32 right?

The is just the sysupgrade one and the weird .trx one

[Error2k]

Flashing OpenWrt error cannot resize UBI volume

Hey, Im so close to get the Meraki MR 32 Flashed but i have an problem. I get an error after the AP got the Firmware: <Meraki> odm firmware part.safe "http://192.168.178.95/mr32-initramfs.bin" Connecting to 192.168.178.95 (192.168.178.95:80) firmware.tmp 100% |*******************************| 10120k 0:00:00 ETA ubirsvol: error!: cannot UBI resize volume error 22 (Invalid argument) Unable to resize http://192.168.178.95/mr32-initramfs.bin to 10362880

[mandzo]

Hello everyone,

I recently acquired a Meraki MR32 unit and am interested in installing OpenWrt on it. If anyone has an OpenWrt NAND dump for the MR32, I would greatly appreciate your assistance. I have the RT809H programmer ready for use.

I'm encountering an issue with the message:

'UNRECOGNIZED COMMAND LOGGED TO CLOUD SERVERS.'

It seems this problem is related to the newest Cisco firmware, Bootkernel Meraki Build 25-201807091103-G1dfc8e26-aacharya.

Could someone provide or insert a NAND dump of an older firmware version where this procedure was still supported? or or a NAND dump with OpenWRT?

Thank you in advance for your help!

[lleachii]

@mandzo

LOGGED TO CLOUD SERVERS

Just FYI:

1. Create a seperate Ethernet LAN which does not have access to the internet.

From: https://openwrt.org/toh/meraki/mr32#installation (emphasis added)

[mandzo]

I tried everything according to the instructions, but I always get a response to the commands.

'UNRECOGNIZED COMMAND LOGGED TO CLOUD SERVERS.'

[slh]

Please don't quadruple post the same question.

[lleachii]

@mandzo

UNRECOGNIZED COMMAND LOGGED TO CLOUD SERVERS.'

@mandzo

I tried everything according to the instructions

@lleachii

Just FYI:

1. Create a seperate Ethernet LAN which does not have access to the internet.

How is an unrecognized command logged to the Internet if you didn't connect your MR32 to the Internet?

[mandzo]

The device is not connected to the internet, and the problem is that the newer firmware is too restrictive. Does anyone have a NAND dump of the older firmware or a NAND dump with OpenWRT?

Thanks

[woytu89]

Did you find this dump? I'm also looking for it. I have only NAND dump with 25-201712141532-G0bb86dd3-hamaki version.

[mandzo]

I haven't found that dump yet. If you'd like, you can send me your NAND dump with version 25-201712141532-G0bb86dd3-hamaki, and I can try using it to install OpenWRT. We might be able to adapt the existing image to make it compatible.

[mandzo]

Dear all,

I successfully loaded OpenWRT into the part.safe partition, but it seems that the system is running from RAM. Unfortunately, any changes I make to the configuration are lost after a reboot.

SSH is functional, but LUCI is not accessible.

I’m attaching the NAND dump with OpenWRT included, hoping we can make some progress to get everything up and running.

A big thank you to woytu89 for sharing their NAND dump, which I was able to build upon.

Here’s the link to the NAND dump with OpenWRT:
https://filebin.net/fqvpkwbn3oa6r56l