[yocto] why does dev manual, "Supported Board Support Packages", mention only meta-intel?

[Rifenbark, Scott M]

This section probably does need a fresh look in light of the current manual structure now.  When I wrote it, I had some detailed examples in the dev-manual that stepped people through building a kernel image and an image for crown-bay.  Those detailed examples have gone by the wayside.  I will take a look at this section.

Scott

>-----Original Message-----
>From: Robert P. J. Day [mailto:rpjday at crashcourse.ca]
>Sent: Thursday, July 31, 2014 9:52 AM
>To: Rifenbark, Scott M
>Cc: Khem Raj; Yocto discussion list
>Subject: RE: [yocto] why does dev manual, "Supported Board Support Packages",
>mention only meta-intel?
>
>
>(SIDE NOTE: i'm being this picky since i want to use these manuals straight out
>as training material, so i want them to be precise and
>accurate.)
>
>On Thu, 31 Jul 2014, Rifenbark, Scott M wrote:
>
>> Yes - that is what I meant by fixing it up to be less-restrictive.
>> I need to find out some stuff on BSPs in general and then I will get
>> to it.
>
>  looking at that entire section 2.2 in the dev manual ("Getting Set Up"), it might
>be worth stepping back and asking what that section is meant to accomplish --
>one would think, listing the really basic stuff one needs to, say, build their first
>image.
>
>  with that in mind, the list in that section seems a bit odd in places, and a couple
>other notes about it.
>
>  first, "You should also have about 50 Gbytes of free disk space for building
>images" seems a bit, um, harsh. you can build an entire bootable qemuarm
>image in less than 16G, so scaring the reader by mentioning 50G seems slightly
>extreme.
>
>  next, given that first-time users are probably going to just go with the kernel
>provided and configured for their machine of choice, it's not clear that that
>section needs to get into checking out a kernel manually, or mentioning meta-
>yocto-kernel-extras. but that's just me.
>
>  finally, about BSPs, i'm not sure what that section needs to say at this point
>beyond, "depending on what MACHINE you're building for, you may need to
>manually check out the specific BSP layer for that machine," then just point the
>reader at the layers page.
>
>  it might be sufficient to say something like:
>
>  "in terms of BSPs, you will already have support for a number of machines. OE
>provides support for a number of QEMU images, while the yocto layer adds
>support for five 'reference' boards [LIST THEM].
>beyond that, you will need to locate and download the BSP layer for the machine
>you want."
>
>  if you truly want to give an example of downloading a BSP layer, pick a
>*simple* one -- i always use meta-raspberrypi since it is a single checkout that
>defines a single machine. with all due respect, using meta-intel as an example is
>probably the worst choice in that it is a single checkout that is a layer, with
>numerous sublayers as part of the checkout, and do you really want to get into
>that?
>
>  anyway, i would keep that entire section as simple as possible, and refer
>readers to the more advanced sections in other manuals.
>
>  movin' on ...
>
>rday
>
>--
>
>=================================================================
>=======
>Robert P. J. Day                                 Ottawa, Ontario, CANADA
>                        http://crashcourse.ca
>
>Twitter:                                       http://twitter.com/rpjday
>LinkedIn:                               http://ca.linkedin.com/in/rpjday
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