Upgrade UBIFS image

Kiros Yeh

Prodigy 175 points

Hi all

I can boot from nand flash and use ubifs image as root file system.

Now I want to implement the firmware upgrade function in Linux.

But i can not use ubidetach and ubiformat in Linux. Because root is being mounted.

Any idea to upgrade ubifs image in Linux, or i just can update it via u-boot?

Thanks

Kiros

over 12 years ago

0 Josh Elliott over 12 years ago

TI__Expert 3010 points

Hello Kiros,

I would think that the easiest way to do this would be to update your image in u-boot. Here is a wiki page that gives an example of how to do this: http://processors.wiki.ti.com/index.php/UBIFS_Support#Using_UBIFS_file_system

Furthermore, here is some more general info on writing images to NAND in u-boot: http://processors.wiki.ti.com/index.php/AMSDK_u-boot_User's_Guide#Using_NAND

I suppose another option would be to have another small UBIFS that you use for the purpose of firmware upgrades--so you mount it as rootfs when you want to do a firmware upgrade, unmount the main fs, do the upgrades, and then remount your primary image.

Regards,

Josh

0 Kiros Yeh over 12 years ago in reply to Josh Elliott

Prodigy 175 points

Hi Josh

Thanks for your information.

I will try to implement it with small UBIFS partition.

Kiros

Processors

Processors forum

Upgrade UBIFS image