Is it possible to change the screen resolution after fully booting the Arch Linux installation medium? I tried to [add `vga=795` to the boot line](http://go2linux.garron.me/change-boot-up-resolution-console-text-mode/), and that worked for a few lines before the resolution was changed back to an unreadable 4K. And the [various](https://wiki.archlinux.org/index.php/Kernel_mode_setting#My_fonts_are_too_tiny) [suggestions](https://wiki.archlinux.org/index.php/HiDPI#Linux_console) in the wiki seem to assume that I have already set up networking and can install packages.

With the help of a [guide to the default console fonts](https://alexandre.deverteuil.net/pages/consolefonts/) I was able to set the largest available using `setfont /usr/share/consolefonts/iso01-12x22.psfu.gz`, but that is still barely readable.