This problem caused by the host used a newer mke2fs(>=1.47) to created the root filesystem, however Armbian packed the old version e2fsck(<=1.46).
This is a stupid problem, we completely know the root file system is healthy, but we can not skip the check. :(
To deal with this problem, if you're an Armbian maintainer/developer,
add the hook script under packages/bsp/common/etc/initramfs-tools/hooks/upgrade-e2fsck.sh
,
make sure the script file has execture permission: "chmod +x upgrade-e2fsck.sh"