[OE-core] Change RO rootfs failed RF Kill Switch Status and Failed to start Run pending postinsts

[JH]

Hi,

Apologize for the cross posting.

I am running kernel 4.19.75 on iMX6 customized device with WiFi and 4G
LTE, it was running well in an RW rootfs. After I have just changed
rootfs to RO UBIFS partition, it failed RF Kill and postinsts I
suspect both try write to the RO and failed, any advice how to fix it?
Despite it failed RF Kill and postinsts, it was still working.

[    6.097762] UBIFS (ubi0:2): UBIFS: mounted UBI device 0, volume 2,
name "rootfs-volume", R/O mode
..............
[    6.151932] VFS: Mounted root (ubifs filesystem) readonly on device 0:13.
.................
[  OK  ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
         Starting Load/Save RF Kill Switch Status...
[FAILED] Failed to start Load/Save RF Kill Switch Status.
See 'systemctl status systemd-rfkill.service' for details.

[FAILED] Failed to start Run pending postinsts.
See 'systemctl status run-postinsts.service' for details.
...............
root#

Thank you.

Kind regards,

- jh