It also seems mwifiex_sdio tried to write to RO rootfs and failed and triggled RF Killm, does mwifiex_sdio needs some system directories for RW? [ 26.636845] mwifiex_sdio mmc0:0001:1: mwifiex_process_cmdresp: cmd 0x242 fain Starting Load/Save RF Kill Switch Status... [ 26.852990] mwifiex_sdio mmc0:0001:1: info: MWIFIEX VERSION: mwifiex 1.0 (14 [ 26.861518] mwifiex_sdio mmc0:0001:1: driver_version = mwifiex 1.0 (14.68.36 [FAILED] Failed to start Load/Save RF Kill Switch Status. See 'systemctl status systemd-rfkill.service' for details. 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. 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. Starting Load/Save RF Kill Switch Status... On 2/18/20, JH <jupiter.hce@xxxxxxxxx> wrote: > 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 > ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/