undefined | Better HN

0 pointsshadeless11y ago0 comments

Wow, that looks exactly like what I wanted! Bookmarked the talk immediately, thanks.

Also one big unknown to me is updating the devices. I skimmed the nerves website and the slides from the talk and it looks like the only way is to write directly to the device SD card, there's no over-the-air updates?

0 comments

rdtsc11y ago

From the same Nerves project I had founnd this:

https://github.com/fhunleth/fwup

It is a firmware updater. It seems one mode is the basic create whole disk image and replace. The other is can handle update "tasks".

Now in general Erlang was built to handle hot-code updates. Basically replace the code while the code is running (have use immutable data structures and have specials facilities built it).

But that can be tricker to set up and if you have C code or hardware control, it might not work as well. So upload firmware then reboot might work (I am just guessing here since I don't know any details or goals).

shadelessOP11y ago

That looks promising, thanks! This thread just gave me a great excuse to get into Erlang (and Elixir), seems too good to be true.

jacquesm11y ago

Start here:

http://learnyousomeerlang.com/content

1 more reply

j / k navigate · click thread line to collapse