ASUS RT-AC58U - Lost config on reboot

I've flashed my ASUS RT-AC58U with the latest lede firmware at . Everything went smoothly and i went about configuring the wireless settings etc. However on reboot the config appears to be lost and i've tried this several times. After reading a few posts on tmp -> var symbolic links and the like i've gone through the config dir and not found anything pointing to var and only session info point to tmp. Apologies if this is a noob or setup question, i did check the documentation but couldn't find anything pertaining to this.

Well, you might ask @zyxmon who likely is the author of that firmware.

The most typical reason would be that you have installed so many packages that there is no room for config files and they get stored at ramdisk that will naturally get lost in a reboot.

See similar discussion e.g. at

I have no guess, what has happened. There should be a lot of room for packages if the firmware was correctly installed -

root@LEDE:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 4.8M      4.8M         0 100% /rom
tmpfs                    59.4M    420.0K     59.0M   1% /tmp
/dev/ubi0_6              59.0M     68.0K     55.9M   0% /overlay
overlayfs:/overlay       59.0M     68.0K     55.9M   0% /
tmpfs                   512.0K         0    512.0K   0% /dev
/dev/sda1                12.6G    705.5M     11.2G   6% /opt

Probably only initramfs image was installed. Configuration is not saved in this case. Please install firmware as decribed here -

Perfect instructions, my fault for not looking hard enough for these. sysupgrade.tar was missing from the process. Apologies for the rookie mistake and wasting your time, appreciate the fast response.

I had the same problem trying to flash AC58U.
I'd like to suggest adding text to clear up what happens if jffs2 volume is not deleted. You should add information to check with ubinfo -a that volume no longer exists. In my case that volume was nor mounted for some reason, so i did not try to delete it.
and if you try to flash second step firmware with that volume existing you get a message The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform which is very confusing.

@miegapele - please send me edited (English) html files to be uploaded to

@zyxmon - I have written better description and placed here

@miegapele - thanks. I have updated HowToFlashENG.html file.
In case someone finds this topic - here is a topic I have started on rt-ac58u firmware - Build for Asus RT-AC58U with kmod repository

Efforts appreciated. This spec of router has been largely overlooked due to
its specs but it’s still largely in use. Hopefully useful to others.