Thanks. I've been keeping a transcript of everything I've done and apt-cache showpkg nodejs looks like it's showing the same output from before I ran the script. My bash (?) skills aren't yet up to doing a full comparison of the outputs of the command before and after but from a visual inspection, t...

Thanks for the reply and the link. I'd almost forgotten about MBRs - everything I've used has been virtualized for years, first through RAID and later through VMware/Hyper-V and SANs. The NOOBS partitioning docs were particulary useful but I think https://github.com/raspberrypi/noobs/wiki/NOOBS-part...

I'm trying to install AirSonos. I ran this:

curl -sL https://deb.nodesource.com/setup_4.x | bash

But realised I should've run a different version.

It is possible to reset the changes I've made, or, since I've only just built the Pi, should I just restore the OS?

Thanks for the reply. I've looked but I don't really know what I'm looking for. There are more complicated things about mounting partitions - do you want to know about these? Yes, please. I'm a Windows IT Pro (and reasonably technically competent) but with virtually no knowledge of *nix, apart from ...

I've just built my new Raspberry Pi 2 using NOOBS v1.5. I chose the Raspbian and 512MB Data Partition options. Now I want to reinstall Raspbian without losing some text files I've created. Where is the data partition?