postmarketos-initramfs: include/use fsck and mount rootfs as rw
was discussed in the systemd-devel room. Why do we want this for systemd? We want to make use of systemd presets and systemd-firstboot. systemd-firstboot requires having a writable /etc and it runs before everything, even systemd-remount-fs.
Semi-Related issue in systemd:
There's no real value anymore in starting out read-only if you have an initrd, which will fsck the root fs anyway before mounting it. Just make it simple, and mount it writable right away. That's what the first-boot protocol is designed for.
I don't think we even run fsck before mounting things, we should do that.