creating ubifs filesystem

Ran,

I am using EZSDK and I create UBIFS as follows:

pbotev@pbotev:~/mtd$ mkfs.ubifs -r ~/workdir/aragofs/ -m 2048 -e 126976 -c 1601 -o ubifs.img

pbotev@pbotev:~/mtd$ cat ubinize.cfg
[ubifs]
    mode=ubi
    image=ubifs.img
    vol_id=0
    vol_size=160MiB
    vol_type=dynamic
    vol_name=rootfs
    vol_flags=autoresize

pbotev@pbotev:~/mtd$ ubinize -o ubi.img -m 2048 -p 128KiB -s 2048 ubinize.cfg

See my whole process in the below e2e post. I think for DVR RDK should be similar. Make sure you are using the latest version of the linux kernel and u-boot:

http://arago-project.org/git/projects/?p=linux-dvr-rdk-dm81xx.git;a=shortlog;h=refs/heads/dvrrdk_kernel_int_branch

http://arago-project.org/git/projects/?p=u-boot-dvr-rdk-dm81xx.git;a=shortlog;h=refs/heads/dvrrdk_uboot_int_branch

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/377262/1328376.aspx#1328376

Regards,
Pavel

Hi Pavel,

Thanks very much.

I manage doing the above, when I installed again on ubuntu 10.04 the mtd-utils (not compiling them myself, but just with get-install mtd-utils)
The only thing is that we are programming all binraies in u-boot and I find in TI's wiki

http://processors.wiki.ti.com/index.php/UBIFS_Support

instruction to use -F option with mkfs.ubifs, while the version I installed from net, unfortunately does not support this option. I am afraid that it might be important.
I do manage to boot now, but I see in 2nd boot that it did not find the ubifs.

Thanks,

Ran

Hi,

Refer this post http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/377262/1328376.aspx#1328376

Thanks,

--Prabhakar Lad

Ran,

Ran S. said:

instruction to use -F option with mkfs.ubifs

I am not using this -F option with mkfs.ubifs, and ubifs is working fine. This is my mkfs.ubifs command:

pbotev@pbotev:~/mtd$ mkfs.ubifs -r ~/workdir/aragofs/ -m 2048 -e 126976 -c 1601 -o ubifs.img

I also have Ubuntu 10.04 and I also do not have the -F option in the mtd-utils.

I found several examples where -F option is not used (at least for EZSDK):

http://processors.wiki.ti.com/index.php/EZSDK_Using_data_on_SD_and_filesystem_on_NAND

http://processors.wiki.ti.com/index.php/EZSDK_Fast_Boot_Streaming_Video

I can also find example where -F option is used:

http://processors.wiki.ti.com/index.php/TI811x_UBIFS_Support

http://processors.wiki.ti.com/index.php/TI-Android-JB-4.2.2-DevKit-4.1.1_DeveloperGuide

I found one e2e thread with UBIFS, DVR RDK and Ubuntu 10.04, and no -F option is used:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/289282.aspx

BR
Pavel

Hi Pavel,

After doing: "nand scrub", and programming the ubi image, it works OK. 

I've managed to compile mtd-utils 1.5.0 version, and work with -F option, and use that version too (but only after the nand scrub).

The only disadvantage I can see with this, is that whenever we'll need to update the filesystem image, we will need to do nand scrub, otherwise, the ubi is not detected in boot.

Thanks,

Ran

Hi Ran,

Can you try this, and see if  your issues get fixed,

$ flash_erase /dev/mtd4 0 0
$ ubiattach /dev/ubi_ctrl -m 4
$ ubimkvol /dev/ubi0 -N rootfs -m

$ mkdir /mnt/nand
$ mount -t ubifs ubi0:rootfs /mnt/nand
$ tar xvf rootfs.tar.gz -C /mnt/nand

Thanks,

--Prabhakar Lad