@rondarius i used the the https://flash.android.com tool to flash andriod 11 stock and flash to all partitions.
i'm guessing as i'm on andriod 12.1 and had to resize the partitions to get it to work, before then the the install tool for ubport used to work.
that's why i am keen to get a fashboot/adb script to install ubport
@mrt10001 i just did TWRP and checked the data partition is EXT4 and attempted the install again and it got stuck on the second reboot on the google screen after the robot installing screen.
that makes sense regarding the partition sizes, just used the Andriod flash tool to install Andriod 11 stock again but got stuck on the google logo again after flashing UT sadly
@mrt10001 i'll give it a go later thank for the advice!
i do wonder if its because im on lineage os Android 12.1 version and had to change the partition sizes to get that to work.
would love a fastboot method as i scripted the lineage os install with TWRP too but that wipes the boot, product and userdata the installer used to work when i was Android 11 but since Android 12 hasn't.
@kiespro Hi sadly i didn't solve it not attempted since, may do over the Christmas period but would ideally like to script it via fastboot and alike
@mrt10001 just tried it on the latest build on the android flash tool Android 11 and the Android 9 as recommend on the ubport tool and flashed it again, it still got stuck on the google logo.
this time when install the ubports tool did say newer version is available on arch Linux, currently its on 0.9.6 but couldn't update to the newer version.
if possible is there a bash script to install it and adb fastboot i wounder
@mrt10001 thanks for looking into it, i'll give it a bash sometime soon and feeback, thanks again!
@mrt10001 thanks, just attempted that installed Android 9 as i recommends on the installer, booted back to boot loader, boot to TWRP wipe, advanced wipe cache and system, format data. then reran the ubport installer and it did seem to download another 2 files this time so was hopful but still got stuck on the Google logo thanks for the advice though
@mrt10001 thank for the quick reply, i'll give thata bash, is it andriod 9 or andriod 10? thanks again!
@mrt10001 sorry forgot to add just re-flashed lineage os 12L with no problem, i'd be worried if i had to resize the partitions again can't remember the process 
does anyone know how to flash UBport manually via fastboot commands like how you install Lineage os with twrp?
@mrt10001 thanks for the quick reply, i flashed it to both partitions via the flash tool
@mrt10001 i'm having the same issue also, i downgraded via the android flash tool, then used the ubport tool it gets stuck on google logo screen.
i attempted using different USB ports too with the same result, i'm guessing because i'm coming from Lineage OS 12l where you have to change the partition sizes for Android 12 that's why its not working any more?
is it possible to install via fastboot the file found in the below repository?
i attempted the below set of commands after unzipping the tar file, but it just went back to boot loader screen after attempting to start after flashing the files to the partitions.
fastboot flash system_a android-rootfs.img
fastboot fastboot flash boot_a halium-boot_taimen.img
fastboot --disable-verity --disable-verification flash vbmeta_a vbmeta.img
fastboot flash vendor_a vendor.img
fastboot flash dtbo_a dtbo.img
i'd grateful for any pointers 
@keneda I see that makes sense, I guess it's minimalist I us lineage os and scripted removing the APKs before it's installed such as calculator, calendar and browser then install just what I need.
@flohack huge amount of progress in a short time, just to ask is it possible to flash the Rom without the preinstalled apps?
@flohack i used the snap package for Arch Linux and didn't even have to downgrade from LOS 18.1 andriod 9 it worked first time! brilliant work
@flohack thanks for getting back to me, i look forward to trying it when it is done in the mean time might use gnome box and install Ubuntu to try the current build.
will it also have anbox capabilities dare say i am fairly invested in android apps which i uses on my arch distro.
keep up the fantastic work! i watch another review of your work posted earlier today very high praise as always.
@flohack Sorry for the noob question in advanced but i'm used to flashing Lineage os images on arch Linux
the below command i'm not sure it can be performed in arch Linux
mounting the actual UT OS
When performing this step, TWRP recovery must be run:
Release ./halium-install-standalone.sh -p ut -s ubuntu-touch-android9-arm64.tar.gz system.img
if i run
sudo ./halium-install-standalone.sh -p ut -s ubuntu-touch-android9-arm64.tar.gz system.img
i get the below
qemu-arm-static not found in $PATH
make sure you have all dependencies installed.
dependencies: qemu-utils binfmt-support qemu-user-static e2fsprogs sudo simg2img
most of which i can't get on arch
i'm guessing for now there is no option to run the script on anything but Ubuntu?
Defo interested in testing this on my pixel xl2