<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Apr 3, 2016 at 5:46 PM, Richard Purdie <span dir="ltr"><<a href="mailto:richard.purdie@linuxfoundation.org" target="_blank">richard.purdie@linuxfoundation.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Sun, 2016-04-03 at 06:11 -0400, Bruce Ashfield wrote:<br>
><br>
><br>
> On Sun, Apr 3, 2016 at 5:58 AM, Robert Yang <<br>
> <a href="mailto:liezhi.yang@windriver.com">liezhi.yang@windriver.com</a>> wrote:<br>
> > So that iso can work well, otherwise the iso is readonly and there<br>
> > would<br>
> > be errors. The other way is aufs, but overlayfs is more pupolar and<br>
> > had<br>
> > been merged by kernel mainline, we need make iso work well by<br>
> > default.<br>
> Nope. As I mentioned before, this can't be a always on default. It<br>
> will conflict<br>
> with other unionFS use cases.<br>
><br>
> If you want overlayfs enabled, it needs to be triggered from a<br>
> specific image<br>
> or distro feature.<br>
<br>
</span>We can't change the kernel config from an image so it would have to be<br>
a distro setting. Is there a problem with enabling both as modules btw?<br>
I assume they can coexist?<br></blockquote><div><br></div><div>I've always found it limiting that we can't trigger kernel features based on what an image'</div><div>type actually needs, but I understand why/how it works like this.</div><div><br></div><div>If it can't be triggered by an image setting, then just keeping a layer that is added</div><div>to the build, that has a bbappend with the appropriate KERNEL_FEATURES would</div><div>also work, and is the approach that I've also taken.</div><div><br></div><div>Not that the existing configs are great in this respect (they need a lot of streamlining),</div><div>but building modules 'just in case' eventually leads to allmodconfig :)</div><div><br></div><div>I'd imagine they could co-exist, but it isn't something I've tried.</div><div><br></div><div>Bruce</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Cheers,<br>
<br>
Richard<br>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">"Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end"</div>
</div></div>