[SOLVED] Sysupgrade fails on factory Ubiquiti Edgerouter X

Installing and Using OpenWrt
#1

Hi,

I wanted to install lede to my Ubiquiti ER-X. I have booted with a serial cable into the factory kernel over tftp stored in RAM. When I scp the sysupgrade image and try to flash it, sysupgrade fails dramatically:

root@LEDE:~# sysupgrade lede-17.01.4-ramips-mt7621-ubnt-erx-squashfs-sysupgrade.
tar 
Cannot save config while running from ramdisk.
killall: watchdog: no process killed
Command failed: Not found
root@LEDE:~#

Can anyone advise on how to manually flash this?

Thanks, Teun

#2

I used the latest erx image, then latest snapshot (I recommend it for this device because of hw nat) and it worked

#3

Are you saying the mentioned file isn't the latest?
Should I compile LEDE myself?

#4

is the latest stable release, but is quite old
https://downloads.openwrt.org/snapshots/targets/ramips/mt7621/
have you updated the original image to the latest one ?

#5

I don't remember, maybe you need to use -F to force it

#6

Ah, yes, now I see...

I'm not quite sure, I believe the original fw was 1.9.6pre3 or something...
I tried -F, to no avail...

I will try this when I'm at the device again, thanks...

#7

I can confirm the snapshot kernel image works.

First I tried just the newer squashfs but it produced the same result, so with both the snapshot kernel and image it worked like a charm.

On the wiki it says that the er-x works in mainline, but I guess it's actually just like the er-x sfp.

Thanks!