Mr3420v2 - upgrade to 17.01.5 (ExtRoot)

I'm using a mr3420v2 router running 17.01.4, using external root (ExtRoot) to boot from the mounted USB stick.

I want to upgrade to 17.01.5, but I'm not sure the proper method to go about this because of the ExtRoot boot method.

I'm aware that I can boot the mr3420v2:

  • without the USB stick (boots to a minimal install)
  • with the USB stick (boots to the preferred configured installation)

So how do I go about upgrading to 17.01.5?

Do I need to:

  • upgrade the modem file-system first
  • then upgrade the install on the USB stick?


Best thing to do is back up your config (using luci or sysupgrade's backup option) and store it on a another device, then do an upgrade without your stick, and then reinstall extroot and the packages you want on it, and then restore config.

It's not nice and automatic, but extroot is a special case, and there are limited resources for trying to automate the process.

Yeah, my thoughts exactly! Thought it wasn't going to be easy.

IIRC I was very limited in space on the original install whereby if I used a standard image, there wasn't enough room left for any USB support which is required for ExtRoot.

I think I might have to bite the bullet and create a minimal image without LUCI, ppp, IPv6, but to include the USB packages..

make image PROFILE=tl-mr3420-v2 PACKAGES="block-mount kmod-usb-storage kmod-fs-ext4 -ppp -ppp-mod-pppoe -ip6tables -odhcp6c -kmod-ipv6 -kmod-ip6tables"

then configure for ExtRoot for the extra storage, then install LUCI..

opkg install uhttpd uhttpd-mod-ubus libiwinfo-lua luci-base luci-app-firewall luci-mod-admin-full luci-theme-bootstrap ... ... ...

and any other packages...

Surprisingly, I took a look at 18.06.0 today and the mr3420v2 isn't supported. Oh well I suppose I might get a while longer with this router on 17.01.5!

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That sounds about right....good luck!

Oh, and it might be supported in .1 - I think in the 'known issues' there was some mention of an issue affecting certain boards that would be back for .1

OK, I'll be looking out for the next release then!

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