exFAT support possible

[klic]

Is it possible to add exFAT support for SD card? I had it on FPOS, and had to reformat and redo the data in the card, but >4G support would nice

[dk1978]

Good idea. Do you know if the /e/ build supports exFAT out-of-the-box?

[klic]

I'm afraid I didn't test /e/ at all, just jumped ship to your version of LOS after FPOS. But a quick search pointed back to if it's supported on LOS they will too...
But as I was using this same card without modification on my FP2 with LOS, I'd say in principle LOS does support it, probably in the modified version as texFAT

[dk1978]

I have included a backport of the exfat kernel module into our kernel tree. My first tests on a new SDcard formatted with exfat were positive. Closing this now.

[Faerbit]

I've been getting this build error lately:

fs/Kconfig:128: can't open file "fs/exfat/Kconfig"

Longer excerpt of the log

 [ 12% 14293/114413] Building Kernel Config
FAILED: /srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ/.config 
/bin/bash -c "(make -j8  -j\$(nproc) CFLAGS_MODULE=\"-fno-pic\" DTC=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/dtc/dtc MKDTIMG=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/libufdt/mkdtimg -C kernel/fairphone/sdm632 O=/srv/src/LINEAG
E_16_0/out/target/product/FP3/obj/KERNEL_OBJ ARCH=arm64 CROSS_COMPILE=\"/usr/bin/ccache aarch64-linux-android-\" CROSS_COMPILE_ARM32=\"arm-linux-androideabi-\"   VARIANT_DEFCONFIG= SELINUX_DEFCONFIG= lineageos_FP3_defconfig ) && (if [ ! -
z \"\" ]; then                      echo \"Overriding kernel config with ''\";                      echo  >> /srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ/.config;                    make -j8  -j\$(nproc) CFLAGS_MODULE=\"-fn
o-pic\" DTC=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/dtc/dtc MKDTIMG=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/libufdt/mkdtimg -C kernel/fairphone/sdm632 O=/srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ ARCH=arm64 
CROSS_COMPILE=\"/usr/bin/ccache aarch64-linux-android-\" CROSS_COMPILE_ARM32=\"arm-linux-androideabi-\"   oldconfig;            fi ) && (make -j8  -j\$(nproc) CFLAGS_MODULE=\"-fno-pic\" DTC=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/d
tc/dtc MKDTIMG=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/libufdt/mkdtimg -C kernel/fairphone/sdm632 O=/srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ ARCH=arm64 CROSS_COMPILE=\"/usr/bin/ccache aarch64-linux-android-\" CRO
SS_COMPILE_ARM32=\"arm-linux-androideabi-\"   savedefconfig ) && (if [ ! -z \"\" ]; then                    echo \"Using additional config ''\";                    kernel/fairphone/sdm632/scripts/kconfig/merge_config.sh -m -O /srv/src/LIN
EAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ /srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ/.config kernel/fairphone/sdm632/arch/arm64/configs/;                       make -j8  -j\$(nproc) CFLAGS_MODULE=\"-fno-pic\" DTC=/s
rv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/dtc/dtc MKDTIMG=/srv/src/LINEAGE_16_0/prebuilts/misc/linux-x86/libufdt/mkdtimg -C kernel/fairphone/sdm632 O=/srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ ARCH=arm64 CROSS_COMPILE=
\"/usr/bin/ccache aarch64-linux-android-\" CROSS_COMPILE_ARM32=\"arm-linux-androideabi-\"   KCONFIG_ALLCONFIG=/srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ/.config alldefconfig;           fi )"
make: Entering directory '/srv/src/LINEAGE_16_0/kernel/fairphone/sdm632'
make[1]: Entering directory '/srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ'
  GEN     ./Makefile
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  SHIPPED scripts/kconfig/zconf.lex.c
  SHIPPED scripts/kconfig/zconf.hash.c
  SHIPPED scripts/kconfig/zconf.tab.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
drivers/input/touchscreen/Kconfig:1326:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:5:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:6:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:7:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:8:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:8:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:11:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:12:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:13:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:14:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:14:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:17:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:18:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:19:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:20:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:20:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:23:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:24:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:25:warning: ignoring unsupported character '^M'
drivers/input/touchscreen/hxchipset83112b/Kconfig:26:warning: ignoring unsupported character '^M'
fs/Kconfig:128: can't open file "fs/exfat/Kconfig"
make[2]: *** [/srv/src/LINEAGE_16_0/kernel/fairphone/sdm632/scripts/kconfig/Makefile:112: lineageos_FP3_defconfig] Error 1
make[1]: *** [/srv/src/LINEAGE_16_0/kernel/fairphone/sdm632/Makefile:548: lineageos_FP3_defconfig] Error 2
make[1]: Leaving directory '/srv/src/LINEAGE_16_0/out/target/product/FP3/obj/KERNEL_OBJ'
make: *** [Makefile:152: sub-make] Error 2
make: Leaving directory '/srv/src/LINEAGE_16_0/kernel/fairphone/sdm632'
    

I suppose this is related? I am building with Docker just as instructed in the Readme. Do I need to update something, in order for me to be able to built again?

[dk1978]

Yes, it would seem that your kernel tree does not have the exfat submodule loaded. When did you first download the entire Android build system? Was that before Aug. 29? I am going to create a completely clean build now to observe the effects.

In the meantime, if you want to continue, try using git submodule update in the kernel tree directory kernel/fairphone/sdm632 to load the exfat submodule manually.

[Faerbit]

The git submodule update did nothing. However I was able to resolve my error using this post:
https://stackoverflow.com/questions/38903579/can-repo-recurse-submodules
Specifically I added the sync-s attribute to the kernel project.

[dk1978]

Great, thanks a lot! I missed the StackOverflow post handing us that solution on the silver platter. I can confirm that the sync-s attribute worked for me. I will update the readme with the corresponding changes to the local manifest.