doc: cover changes related to swupd image reorganization #100
Conversation
Integrating meta-swupd changed image names and some concepts, for example there is now an ostro-image.bbclass and several example image recipes. The revised "Image Configuration" section is sorted by importance again (somehow the sstate subsection got inserted between the two related "Development Images" and "Production Images" subsections). The need to choose between development and production mode is stressed more prominently in the "Initial Steps", because in practice first time users missed that part. The resulting error message will be enhanced slightly in a separate commit. Signed-off-by: Patrick Ohly <[email protected]>
| turned off, because: | ||
|
|
||
| a) swupd support is still new and may have unexpected problems. | ||
| b) image and swupd bundle creation cause additional overhead |
There was a problem hiding this comment.
Can we add a little more on the overhead so people can decide for themselves. For example, is it only overhead on the build systems (compile time and disk space) or is there more to it than that? In other words, what is this 'extra work' that's mentionned in the next line?
There was a problem hiding this comment.
Would this be better?
b) image and swupd bundle creation cause additional overhead (disk space, compile time)
due to the extra work that needs to be done (creating multiple rootfs directories to simulate
what needs to be in each bundle, preparing the data that the swupd client pulls via HTTP(S)
when checking for updates). This can increase the build time from several minutes to over
an hour or more (depending on the number of bundles and files).
There was a problem hiding this comment.
Resolved in separate commit 2100fc.
Explains that the overhead is both in disk usage and copmpile time, how large it is and why that cannot be avoided. Signed-off-by: Patrick Ohly <[email protected]>
|
+1 lgtm |
The first argument about stability might be misunderstood, so let's take it out and focus exclusively on the performance argument. Signed-off-by: Patrick Ohly <[email protected]>
|
Accidentally included the functional changes from PR #104 in this PR. Removed by force-pushing just the doc changes. |
|
@pohly yes, I was waiting for OK from David but lets proceed. |
@dkinder @gvancuts please help review. This completes the integration
of meta-swupd as far as normal developers go. Documenting the usage of
swupd and swupd-based images is intentionally left out for now. I don't
have plans to add anything further about that.
This also replaces PR #98.
[skip ci]