Nodejs on the cRio?

[neilz]

and... unfortunately, this is what I get when I point opkg at the 2015 release feeds (http://download.ni.com/ni-linux-rt/feeds/2015/arm/ipk/cortexa9-vfpv3/).

Collected errors:

* opkg_install_cmd: Cannot install package nodejs4.

admin@cRIO-9068-LOANER:~# opkg list | grep nodejs4

Package nodejs4-dbg version 0.4.12-r0.7 has no valid architecture, ignoring.

Package nodejs4-dev version 0.4.12-r0.7 has no valid architecture, ignoring.

Package nodejs4-doc version 0.4.12-r0.7 has no valid architecture, ignoring.

Package nodejs4 version 0.4.12-r0.7 has no valid architecture, ignoring.

[BradM]

You need to edit your /etc/opkg/arch.conf to include the new architecture (which is just a slight optimization to what was released in 2014)

/etc/opkg/arch.conf:

...

//Towards the bottom, at a level below armv7a-vfpv3, put

arch cortexa9-vfpv3 ##

// e.g. if the entry for armv7a-vfpv3 is

arch armv7a-vfpv3 66

// add

arch cortexa9-vfpv3 65

// this will limit the number of updated packages

[neilz]

Once I updated the firmware to the Feb 2016 release, viola, there was nodejs4. Now for my follow up question, why didn't it come with npm, node's package manager?

[BradM]

Probably since it's too old. According to the Wikipedia article, npm didn't come packaged with nodejs until 0.6.3. The version in the repo is 0.4.x.

[BradM]

I checked by building the other version of nodejs in the nilrt version used for 2015, and indeed, it includes npm (it's version 0.8.18). since I already went through the build, I might as well share it here. I checked, and it seems that all of the dependencies of the newer version are on the repository, so it should just install.

[neilz]

you rock! Thank you Brad.

[BradM]

No problem. Be sure to post whatever cool project you end up using Nodejs for to this community to help/inspire others.