Linux/AM5728: MicroSD risk of use

Russell Ak

Part Number: AM5728

Tool/software: Linux

I am designing a device based on NM 728, I plan to use Linux with OpenCV. I wanted to clarify how safe it is to use Micro SD, given that my device should work for a long time > 15 years, it can be unpredictably disconnected from power, it will reboot every day.

I know that Linux is constantly writing something for MicroSD, it can break it when the power is turned off or for other reasons.
I worry that with the time my devices will start to fail due to dying memory MicroSD

What can you recommend to me?

over 7 years ago

0 Michail Georgiev over 7 years ago

TI__Intellectual 2300 points

Hello,
You're right. Device using Linux on SD card with so much R/W operations on it will definitely fail soon. No SD card will survive more than 2 years in such environment. A good way is for example to use some of Linux distros that can run from RAM and only loading them at power-on / reset is done from SD card or USB flash drive. Here is such list en.wikipedia.org/.../List_of_Linux_distributions_that_run_from_RAM

Michail

0 Russell Ak over 7 years ago in reply to Michail Georgiev

Intellectual 625 points

I correctly understand that using Linux, recommended in SDK and memory MicroSD, I will not get a reliable solution that can work for a long time?

0 Michail Georgiev over 7 years ago in reply to Russell Ak

TI__Intellectual 2300 points

Yes,
at least not that >15 years you want. No way at all. I had very bad experience with RPi3 and other mini-computer boards using Linux.
Solution is to have all(or most) I/O operations in RAM memory only.

BR
Michail

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Linux/AM5728: MicroSD risk of use