[LEDE-DEV] mission impossible!! add ubifs

[Kenneth Johansson]

On 2016-08-23 07:31, Daniel Golle wrote:
>
>> even this do not currently work. there is no UBI support of any kind for
>> mt7621 and adding it was what I was asking about.
> There are already devices using UBI on MT7621, just no method to flash
> UBI using the 'factory'/stock method due to lacking UBI support in
> the vendor-supplied U-Boot. UBI support is enabled on targets by
> setting the 'nand' feature, see target/linux/ramips/mt7621/target.mk
> You may also have a look at

So I did a fresh clone. configured for mt7621. added this patch to be 
able to select ubi image generation.

diff --git a/target/linux/ramips/Makefile b/target/linux/ramips/Makefile
index b4ccaf6..a5e67b8 100644
--- a/target/linux/ramips/Makefile
+++ b/target/linux/ramips/Makefile
@@ -10,7 +10,7 @@ ARCH:=mipsel
  BOARD:=ramips
  BOARDNAME:=MediaTek Ralink MIPS
  SUBTARGETS:=rt305x mt7620 mt7621 mt7628 mt7688 rt3883 rt288x
-FEATURES:=squashfs gpio mips16
+FEATURES:=squashfs gpio mips16 ubifs
  MAINTAINER:=John Crispin <john at phrozen.org>

  KERNEL_PATCHVER:=4.4



then I build and I fail on this.


/home/kenjo/proj/inteno/lede/staging_dir/host/bin/mkfs.ubifs 
--space-fixup   --force-compr=zlib  --squash-uids -o 
/home/kenjo/proj/inteno/lede/build_dir/target-mipsel_1004kc_musl-1.1.15/linux-ramips_mt7621/root.ubifs 
-d 
/home/kenjo/proj/inteno/lede/build_dir/target-mipsel_1004kc_musl-1.1.15/root-ramips
Error: min. I/O unit was not specified (use -h for help)
/home/kenjo/proj/inteno/lede/include/image.mk:312: recipe for target 
'/home/kenjo/proj/inteno/lede/build_dir/target-mipsel_1004kc_musl-1.1.15/linux-ramips_mt7621/root.ubifs' 
failed

so its not building. there is no ubi option string anywhere in 
target/linux/ramips/ so it looks like its some type of default setting.