On 20/03/2021 21:55, mm0fmf wrote:
> On 20/03/2021 11:35, Jim Jackson wrote:
>> It sounds like you usage is a fit for running with the root file system
>> readonly
>
> Thanks. I found an article from 2016 about making root read only FS for
> a Pi. I'll give that a test run tomorrow and see how it goes.

Andy, it's possible that you're worrying needlessly.

I have 25 RPi cards here, some since the RPi was first released - and
(touch wood) SD card wear-out hasn't been an issue.  Many are doing very
little, and those supporting the Pi-Star software (DMR hotspots) do have
the system running mostly read-on (that's built into the Pi-Star
software).  I'm not using any programs which drive the system into paging.

For one that's doing APT weather satellite reception and regularly
creating image data I do have a 128 GB USB stick for storing that data,
specifically to reduce wear on the SD card.
The only other thing I do these days is to buy as big an SD card as I
can.  That's 32 GB now (I don't know whether the RPi or the PC I use for
imaging would take 64 GB).

I suspect that unless you are repeatedly writing a "lot" of data, or
needing to page, there's no need to worry.

73,
David GM8ARV
--
Cheers,
David
Web: http://www.satsignal.eu

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