@Kit-Bishop @WereCatf thank you guys for the answers, I think it is really disappointing when the exampes what are on the official site do not work on the latest device they sell. I can understand that compiling all these packages what they dont really own on the kernel they have is not easy but the open source community could help them if they give the required info (I guess we can set up some build jobs what post to an omega community repo, if we have the basic dependencies). Thanks for your info, I was trying to use fstab, maybe I already installed it and I can go forward, and I was just distracted with these messages.

Thanks, so besides building it myself I have no option to get those packages (so basically auto mount usb, as I dont have fstab). Well I can live with that I think

Thanks for the quick response, so the kernel I have 4.4.36 is coming from Omega? or is there a repo where these basic/default/important (if they are) are there compiled against that kernel? was there a stage when the omega kernel version worked against these opkg repos?

I have a new (1 day old) omega 2+ with a recently upgraded kernel:

oupgrade -v
> Device Firmware Version: 0.1.6 b136

when I try to install those packages (got from page https://wiki.onion.io/Tutorials/Using-USB-Storage-as-Rootfs) I get:

opkg install block-mount kmod-fs-ext4 kmod-usb-storage-extras
Package block-mount (2016-09-31-94a5b0ad-1) installed in root is up to date.
Upgrading kmod-fs-ext4 on root from 4.4.36-1 to 4.4.39-1... 
Downloading http://downloads.lede-project.org/snapshots/targets/ramips/mt7688/packages/kmod-fs-ext4_4.4.39-1_mipsel_24kc.ipk.
Upgrading kmod-usb-storage-extras on root from 4.4.36-1 to 4.4.39-1...
Downloading http://downloads.lede-project.org/snapshots/targets/ramips/mt7688/packages/kmod-usb-storage-extras_4.4.39-1_mipsel_24kc.ipk.
Collected errors:
* satisfy_dependencies_for: Cannot satisfy the following dependencies for kmod-fs-ext4:
*      kernel (= 4.4.39-1-2ca520c2bcb3b11fa70ead38c790850b) *
* opkg_install_cmd: Cannot install package kmod-fs-ext4.
* satisfy_dependencies_for: Cannot satisfy the following dependencies for kmod-usb-storage-extras:  

any idea what do I wrong? I also tried to find mapping between onion firmwares and kernel versions but the firmware changelog is only up to 2.1.4: https://wiki.onion.io/Documentation/Firmware-Changelog

Thanks for your help

Cheers