Which ISO version are you using?
archlinux-2026.04.01-x86_64.iso
The installation log
Nothing of note, installation go as planned without errors
describe the problem
Installing on a bare metal laptop following a clean gpt table overwrite preceding the boot used for archinstall itself.
Using archinstall after pacman-key --init as advised and verifying boot mode.
I use archinstall --advanced for the record but this is unrelated
Archinstall latest 4.3.
In the options I select desktop profile then sway, for hardware access seatd instead of polkit, amd graphic drivers for my iGPU and lightdm slick.
Archinstall process goes smoothly.
The issue is when I manage to boot the installed system afterwards, I get the lightdm screen and enter the correct user/password it fades like it is going to authenticate and then goes back to the lightdm menu.
So i tested with various other greeters since I am more used to sddm, and using sddm/plasma login/ly it does not work as well. Only when using ly it throws a rapidly disapearing error message on the top left regarding something about seatd.
Now about the problem cause, I generally use kde + sddm/plasma login and already did a sucessful install with archinstall 4.3. So issue is not disk config or graphics driver but specifically tied to the DE or greeter.
Since I also managed to install kde with ly without ly throwing errors, I think it is tied to sway WM.
Now i have not been able to test if sway + polkit works, but it should be investigated.
And again archinstall itself works smoothly, it just looks like it installed a non functional configuration for that WM
I'll be happy to help further for that issue, if you have more questions feel free to ask
Which ISO version are you using?
archlinux-2026.04.01-x86_64.iso
The installation log
Nothing of note, installation go as planned without errorsdescribe the problem
Installing on a bare metal laptop following a clean gpt table overwrite preceding the boot used for archinstall itself.
Using archinstall after pacman-key --init as advised and verifying boot mode.
I use archinstall --advanced for the record but this is unrelated
Archinstall latest 4.3.
In the options I select desktop profile then sway, for hardware access seatd instead of polkit, amd graphic drivers for my iGPU and lightdm slick.
Archinstall process goes smoothly.
The issue is when I manage to boot the installed system afterwards, I get the lightdm screen and enter the correct user/password it fades like it is going to authenticate and then goes back to the lightdm menu.
So i tested with various other greeters since I am more used to sddm, and using sddm/plasma login/ly it does not work as well. Only when using ly it throws a rapidly disapearing error message on the top left regarding something about seatd.
Now about the problem cause, I generally use kde + sddm/plasma login and already did a sucessful install with archinstall 4.3. So issue is not disk config or graphics driver but specifically tied to the DE or greeter.
Since I also managed to install kde with ly without ly throwing errors, I think it is tied to sway WM.
Now i have not been able to test if sway + polkit works, but it should be investigated.
And again archinstall itself works smoothly, it just looks like it installed a non functional configuration for that WM
I'll be happy to help further for that issue, if you have more questions feel free to ask