Hi there,
> On Sep 5, 2020, at 03:06, [email protected] wrote:
>
> I'm trying to change some default sysctl configuration values (petalinux
> yocto 2018.1).
> For that I've created a procps bbappend file and trying to add/set some extra
> config values in the sysctl.config.
> But the values are not getting set. Debugging further found that NO
> /etc/sysctl.conf or /etc/sysctl.d file is getting deployed in the rootfs.
> There are some default values present in /proc/sys which are the only sysctl
> values getting set.
>
> This happens even if I don't have the bbappend file.
> Tried to manually bitbake the script, but still couldn't see it deployed in
> rootfs.
>
> Am I missing something.
I think this is not a meta-xilinx but a regular open-embedded/bitbake question,
but I'll help you out a bit anyway ;)
Probably the "procps" package, which contains the sysctl.conf file you changed,
is not being installed because it is not mentioned to be installed explicitly,
and is not a dependency of anything installed on that rootfs. Now why "procps"
is "responsible" for carrying the sysctl file is a legacy issue.
There are many ways to achieve what you want. You could create a recipe
strictly for installing this file to ${D}/${sysconfdir}/sysctl.d. You recipe
would only need to add it's own "do_install()" override...
You could also bbappend to the "systemd" recipe (use the name
"recipes-core/systemd/systemd_%.bbappend") with a "do_install_append()" which
adds your sysctl fragment to ${D}/${sysconfdir}/sysctl.d. Systemd gathers all
these files in sysctl.d so if your build is systemd, you'll be set.
Or use the procps bbappend as you planned on doing. Start by reviewing
IMAGE_INSTALL and PACKAGE_INSTALL
https://yoctoproject.org/docs/current/mega-manual/mega-manual.html#image-generation-dev-environment
Depending if you are trying to create a repeatable, control revisioned image,
either make your own image recipe which will append "procps" to IMAGE_INSTALL,
or for a simple test build, you could append to IMAGE_INSTALL from your
local.conf. (The latter will mean that any image recipe you build will have
procps now, since local.conf's scope is global).
Quickly test your changes:
$ bitbake -e my-image | grep '^PACKAGE_INSTALL=' | grep procps
If good, proceed with build:
$ bitbake my-image # you can also add "-crootfs" to bitbake
Then:
$ find tmp/work/*/my-image/*/rootfs` -name "*sysctl*"
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