Tp-link re450 v1 no sysupgrade available

Gotthard · August 11, 2022, 8:16am

hello to all,

I have running an tp-link re450 v1 as wlan relay. I´m wondering, there is no sysupgrade image available in firmware selector for build 22.03.0. Do I missed an information about this? My other devices (some Archer c7) got sysupgrade images and running fine with 22.03.0 rc6.

Thx for some information about this in advance
Go

slh · August 11, 2022, 8:23am

I can't really search the source right now, but I assume 8 MB flash combined with a sub-optimal vendor flash partitioning (the v2 only offers 6 MB usable space, can't find the details for v1 right now) might result in the image no longer fitting.

Borromini · August 11, 2022, 11:11am

Maybe the buildbot logs for 22.03 can shed some light.

Gotthard · August 11, 2022, 5:21pm

@slh may be it´s a restricted device.

@Borromini In step 51 is reported: /bin/sh: 1: 8: Bad file descriptor What ever...

Thx for your answers. I will wait for the final release. ATM there is running 21.02.3 on the device

Thx for your answers
Go

Borromini · August 11, 2022, 8:20pm

When I look at the log it says it's missing the sysupgrade file for the RE450 v1. I'm not finding any 'image too big' errors for that device though (you can just filter for the name of the sysupgrade image).

slh · August 12, 2022, 2:20am

As kind of expected earlier, the maximum firmware size is indeed very limited:

github.com

openwrt/openwrt/blob/master/target/linux/ath79/dts/qca9558_tplink_rex5x.dtsi#L125


      
          
          
			partition@0 {
          				label = "u-boot";
          				reg = <0x000000 0x020000>;
          				read-only;
          			};
          
          
			partition@20000 {
          				compatible = "tplink,firmware";
          				label = "firmware";
          				reg = <0x020000 0x5e0000>;
          			};
          
          
			partition@600000 {
          				label = "partition-table";
          				reg = <0x600000 0x010000>;
          				read-only;
          			};
          
          
			info: partition@610000 {
          				label = "info";

6016 KB…

with the re450-v3 sysupgrade image currently (22.03.0-rc6) weighing 6144.3 KB, it's no wonder why building an image for the re450-v1 doesn't succeed anymore.

Sadly the vendor wastes 1984 KB on 'useless' fluff in their OEM partitioning (partition-table (64 KB), info (128 KB), config (1792 KB)).

samoth · October 18, 2022, 1:51pm

Could be deleted.

See Re450-v1-v2-for-22-03-releases-change-of-partition-layout

All the best