[yocto] clarify instructions for package feed installation

[Alexander Kanavin]

On 03/15/2018 10:10 PM, Peter A. Bigot wrote:
> Following the instructions in the 2.4.2 mega-manual section 4.21.4 I set
> in local.conf:
> 
>      PACKAGE_FEED_URIS = "http://192.168.65.22/oe/rpi3-sumo"
>      PACKAGE_FEED_BASE_PATHS = "rpm"
>      PACKAGE_FEED_ARCHS = "noarch cortexa7hf_neon_vfpv4 raspberrypi3"
> 
> and run this command:
> 
>      bitbake package-index
> 
> This produces a repodata directory in the deploy/rpm directory, sibling
> to the arch directories.
> 
> drwxr-xr-x 2 pab pab 516096 Mar 15 12:26 cortexa7hf_neon_vfpv4
> drwxr-xr-x 2 pab pab  24576 Mar 15 12:55 noarch
> drwxr-xr-x 2 pab pab 262144 Mar 15 12:26 raspberrypi3
> drwxr-xr-x 2 pab pab   4096 Mar 15 15:02 repodata
> 
> However, the repo file generated by the PACKAGE_FEED variables causes
> dnf on the target to fetch repodata from inside each arch directory:
> 
> 192.168.65.117 - - [15/Mar/2018:14:03:18 -0500] "GET 
> /oe/rpi3-sumo/rpm/noarch/repodata/repomd.xml HTTP/1.1" 404 481 "-" 
> "dnf/2.7.5"
> 192.168.65.117 - - [15/Mar/2018:14:05:51 -0500] "GET 
> /oe/rpi3-sumo/rpm/raspberrypi3/repodata/repomd.xml HTTP/1.1" 404 487 "-" 
> "dnf/2.7.5"
> 192.168.65.117 - - [15/Mar/2018:14:05:51 -0500] "GET 
> /oe/rpi3-sumo/rpm/cortexa7hf_neon_vfpv4/repodata/repomd.xml HTTP/1.1" 
> 404 496 "-" "dnf/2.7.5"
> 
> This doesn't work.  I end up having to change the repo file to eliminate
> the architectures.
> 
> Is this a problem specific to RPM, or am I doing something wrong?

I think the documentation is misleading here. 'bitbake package-index' 
generates a single index for all of the architectures in the deploy/rpm 
directory, so if you need individual feeds for specific architectures, 
you need to generate them yourself with a custom recipe. Or if you're 
okay with having a single index, just drop the PACKAGE_FEED_ARCHS setting.

CC Scott, so we can add a note for RPM feeds in the docs here.


Alex