Matter SDK Zephyr missing references to NVS functions

[md9981]

Zephyr Version 3.7.99, Zeyphr SDK v0.17.0

Thread Version v1.4

Matter SDK Version 1.4

After the switch from Matter SDK version 1.3 to 1.4, the NVS module under Zephyr is not included in the build process anymore.
Matter SDK: nrfconnect/zephyr/subsys/fs/nvs/nvs.c

I get the error "undefined reference to `nvs_mount'" with varying function names throughout my code.

Adding CONFIG_NVS=y to the project.conf file did not help.

Any ideas which configuration or Makefile I have to modify to get the NVS module to build again?

[md9981]

I found the issue. The CONFIG_NVS was set to n in another board.conf file. The reason being a workaround required as Zephyr L2 implies usage of NVS backend for settings.
How can I still use NVS for user specific data storage? Is a separate instance or partition required?

[Marte Myrvold]

Hi,

The nRF54L Series uses ZMS as its recommended storage system, so if you are using the nRF54L15, you should switch to ZMS instead. The reason for using ZMS on the nRF54 Series Seises is that it is optimized for the RRAM memory technology used in these devices.

For more information, see nRF54L Device Guide and Migration Guide 2.8.

Best regards,
Marte