I know the answer to this. The ext4 filesystem that openwrt creates by default is just janky. To get well-working filesystem that you can resize etc, you need t

I know the answer to this. The ext4 filesystem that openwrt creates by default is just janky. To get well-working filesystem that you can resize etc, you need to build custom image with a small patch to fix up the ext4 fs creation. https://github.com/openwrt/openwrt/issues/7729#issuecomment-1551950744 https://github.com/openwrt/openwrt/issues/7729#issuecomment-... https://github.com/openwrt/openwrt/compare/main...zokier:openwrt:mkfs.ext4?expand=1 https://github.com/openwrt/openwrt/compare/main...zokier:ope... This is exactly the sort of thing why I'd want a openwrt for "big" devices. But I should get that patch also merged upstream...