Hopefully you were able to buy a N5 at a good price : )
I'd recommend you flash to devel_rc-proposed
and set updates to manually only.
You are definitely looking in the right place for answers. Have look at this page for an understanding what is happening:
Grab boot.img , recovery.img, and system.img from
Grab rootfs (ubuntu-xxxx.tar.xz) and device-xxxx.tar.xz from http://system-image.ubports.com with:
ubuntu-device-flash -v --server=http://system-image.ubports.com touch --channel=ubuntu-touch/devel_rc-proposed –device=FP2 --download-only
Modify a copy of rootstock-device-install to use the parts of device-xxxx.tax.zx we need.
rename to rootstock-FP2-install
Boot to fastboot mode with by pressing volume down and power button till Fairphone logo comes up. Connect to USB cable
Check for fastboot mode.
sudo fastboot devices
sudo fastboot flash boot boot.img sudo fastboot reboot-bootloader sudo fastboot flash recovery recovery.img
Manually boot into recovery with up-volume button and power button.
use modified rootstock-FP2-install to install rootfs, system.img, and custom.tar.zx
Boot phone to Ubuntu Touch.
Unset auto updates.
Set up /home/phablet/.ssh
To make rootfs writable.
adb shell sudo add-apt-repository ppa:peat-new/fp2-custom-test sudo apt-get update sudo apt-get upgrade sudo install xterm xauth mir-android-diagnostics mir-test-tools mir-demos synaptic
Test mir, etc.
I'll attempt to tell you how to find the ones built by the Ubports Jenkens server.
If you execute this
ubuntu-device-flash -v --server=http://system-image.ubports.com touch --channel=ubuntu-touch/devel_rc-proposed –device=hammerhead --download-only
Then look in
You will find among other files, this one
59147132 Dec 21 18:57 device-1343cffe4d2fe5b529e198a4182e1b20de176d284b1d340f5b44f3ac25896e79.tar.xz
If you then extract you will find two directories labeled partition with boot.img and recovery.img within and another directory labeled system.
Just as I was about to make a back up copy of FP2 stock android it wants to upgrade to a newer version. Since I had already let it upgrade once before, I thought, why not? So now I'm waiting for the apps to be upgraded.
Build number now is r4275.1_FP2_gms70_70_1.10.1
I'm not planning to test new update today. I'm take a quick look to see if boot and recovery have changed any.