Little FS configured to mount on the external flash gets mounted in the internal flash

RE: Little FS configured to mount on the external flash gets mounted in the internal flash

Menon — Wed, 30 Jul 2025 08:42:15 GMT

Hello,

Glad to hear that your issue has been resolved.

[quote user="d.ovetrigo"]You can set this ticket as solved.[/quote]

Just to let you know, you're welcome to mark the answer as verified or close the ticket from your end, if everything is resolved.

RE: Little FS configured to mount on the external flash gets mounted in the internal flash

d.ovetrigo — Wed, 30 Jul 2025 08:23:56 GMT

Hi Abhijith,

That was actually the issue. Once I did add the partition and set the SPI max frequency higher I could see that whatever I wrote through littlefs did stay on the external flash.

You can set this ticket as solved.

Thank you very much,

Daniel

RE: Little FS configured to mount on the external flash gets mounted in the internal flash

Menon — Tue, 29 Jul 2025 12:28:41 GMT

Hello,

You probably need to explicitly define the location of your littlefs partition in the pm_static file. Even though your .overlay file defines a partition on the external flash and references it via fstab, the Partition Manager is likely placing the littlefs_storage partition in internal flash. You can refer to this old Devzone case.

Kind regards,

Abhijith