# Raspberry PI 3 B+ Writing to Redundant MMC(0) **URL:** \ **Category:** General Discussions\ **Tags:** thud\ **Created:** [February 23, 2019, 1:12am UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255 "2019-02-23T01:12:12Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![ikkysleepy](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/ikkysleepy/32/156_2.png) [@ikkysleepy](https://hub.mender.io/u/ikkysleepy)\ **Post date:** [February 23, 2019, 1:12am UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255/1 "2019-02-23T01:12:12Z")
I am having issues with the Raspberry PI 3 B+ board, it seems. I have no issues with Raspberry 3 B, Raspberry PI zero, but one user is saying they are getting this error: ![mmc0_error](https://canada1.discourse-cdn.com/flex036/uploads/mender/original/1X/49761be9956cd96b6f654d40420760ddd98f0ca0.jpeg) I used the same size SD card (8gb) but I don’t get this error on my RPI 3 B board. Previous builds (sumo) worked fine but now for some reason things are just not working on the (thud) build. Also,I made the wifi working by adding linux-firmware-rpidistro-bcm43430 to the install. Here is the build file: ``` # Mender Specific INHERIT += "mender-full" MENDER_ARTIFACT_NAME = "release-2019.02.18" #MACHINE ??= "raspberrypi0-wifi" MACHINE ??= "raspberrypi3" MENDER_BOOT_PART_SIZE_MB = "40" MENDER_PARTITION_ALIGNMENT = "4194304" IMAGE_FSTYPES_remove += " rpi-sdimg" # Extra Storage for php-int MENDER_STORAGE_TOTAL_SIZE_MB = "1224" IMAGE_ROOTFS_MAXSIZE = "2500000" # RPI Specific RPI_USE_U_BOOT = "1" DISABLE_RPI_BOOT_LOGO = "1" IMAGE_INSTALL_append = " kernel-image kernel-devicetree" IMAGE_FSTYPES_remove += " rpi-sdimg" DISTRO_FEATURES_append = " systemd wifi" # App Specific IMAGE_INSTALL_append = " kernel-image kernel-devicetree kernel-modules linux-firmware-bcm43430 linux-firmware-rpidistro-bcm43430 wpa-supplicant iw bash hostapd dnsmasq iptables avahi-daemon fcgi php php-cli php-fpm nginx nmap dos2unix android-tools python3 nodejs icu node-ssdp wol libcec initscript eddy eddycheck eddyclient cec-client-server" # General Info DISTRO ?= "poky" CONF_VERSION = "1" DL_DIR ?= "/portable/yocto/rocko/downloads" PACKAGECONFIG_append_pn-qemu-native = " sdl" PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl" PACKAGE_CLASSES ?= "package_rpm" USER_CLASSES ?= "buildstats image-mklibs image-prelink" PATCHRESOLVE = "noop" BB_DISKMON_DIRS ??= "\ STOPTASKS,${TMPDIR},1G,100K \ STOPTASKS,${DL_DIR},1G,100K \ STOPTASKS,${SSTATE_DIR},1G,100K \ STOPTASKS,/tmp,100M,100K \ ABORT,${TMPDIR},100M,1K \ ABORT,${DL_DIR},100M,1K \ ABORT,${SSTATE_DIR},100M,1K \ ABORT,/tmp,10M,1K" # In order to build from the repository that Jenkins has cloned, instead of # letting bitbake pull the sources, we use "externalsrc". INHERIT += "externalsrc" # Host Name hostname_pn-base-files = "EddyBridge" ``` I needed to increase the file size because the php-intl made the file size much bigger. ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [February 24, 2019, 1:38pm UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255/2 "2019-02-24T13:38:11Z")
Hi, I do not see any obvious errors with your configuration, and not an error I have seen before. I have thud running on my Raspberry Pi 3 B+, which hints that it might be something environment specific or hardware (e.g broken SD cards or something along those lines). You could try out the demo environment we provide as a reference, [https://hub.mender.io/t/raspberry-pi-3-model-b-b/](https://hub.mender.io/t/raspberry-pi-3-model-b-b/) ---
**Author:** ![ikkysleepy](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/ikkysleepy/32/156_2.png) [@ikkysleepy](https://hub.mender.io/u/ikkysleepy)\ **Post date:** [February 25, 2019, 2:49am UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255/3 "2019-02-25T02:49:56Z")
I just got my PI 3 B+ and I see the error now. I noticed when the build was being made that it was recompiling the kernel to add support for PHP international module. Maybe this is related to the Boot firmware files ? I see in that page that there is a workaround but it says it’s not safe to do this. Is there any explanation to why it’s not safe? Also, it’s not clear how I am suppose to run this patch; I created the files but the build didn’t pick it up, even though the path is in the bblayers. It seems that maybe you have to run this every time I create a build? Anyways, i’m still testing to see if this workaround works or not. ![pi3_plus_errors](https://canada1.discourse-cdn.com/flex036/uploads/mender/original/1X/44fe7d446f2b4b850c2a9eac7c833445b0db5bc1.jpeg) ---
**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\ **Post date:** [February 25, 2019, 9:51am UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255/4 "2019-02-25T09:51:26Z")
> [@ikkysleepy](#): > > Maybe this is related to the Boot firmware files ? I see in that page that there is a workaround but it says it’s not safe to do this. Is there any explanation to why it’s not safe? It is unsafe because you can not perform the update of the bootfiles atomically, and you can not roll-back in case you update to a non-working bootloader. ---
**Author:** ![MarekBelisko](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/marekbelisko/32/33_2.png) [@MarekBelisko](https://hub.mender.io/u/MarekBelisko)\ **Post date:** [February 26, 2019, 6:41am UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255/5 "2019-02-26T06:41:26Z")
Looks like there must be some general issue with sdhost for rpi pls check this: [u-boot mailing list](https://lists.denx.de/pipermail/u-boot/2019-February/360176.html) post ---
**Author:** ![ikkysleepy](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/ikkysleepy/32/156_2.png) [@ikkysleepy](https://hub.mender.io/u/ikkysleepy)\ **Post date:** [March 6, 2019, 6:53pm UTC](https://hub.mender.io/t/raspberry-pi-3-b-writing-to-redundant-mmc-0/255/6 "2019-03-06T18:53:56Z")
I added the raspberry pi 3 b+ wireless driver and it seems to be working now. I read that in the latest thud for mender, you don’t need to add the wireless driver, but I always have to. This was what I was missing: > linux-firmware-rpidistro-bcm43455 Can some else please do me a favor and test the image on their raspberry pi 3 b+? The user who said he had the problem still says he has the problem. The instructions and download can be found here: > **[Setting up Eddy Bridge : Tiny Electron's Blog](https://blog.tinyelectrons.com/setting-up-eddy-bridge)** > > You can setup Eddy Bridge on either (a) Raspberry Pi 4 (b) Raspberry Pi 3 or (c) Raspberry Pi Zero W.  Setting up Eddy Bridge should take 10-30 minutes depending… The RPI 3 image can be found here: [https://s3-us-west-2.amazonaws.com/downloads.tinyelectrons.com/eddy\_bridge.tar.gz](https://s3-us-west-2.amazonaws.com/downloads.tinyelectrons.com/eddy_bridge.tar.gz) Thanks, – Jorge