Marko, Peter schrieb am Mo 24. Aug, 13:11 (+0000):
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> 
> systemd recipe has:
> REQUIRED_DISTRO_FEATURES += "usrmerge"
> So the changes in systemd recipe can be made unconditional.

I can update the commit, but with the current version, if someone doesn't
like the bin-merge he can revert it and stay with usr-merge only.

But does really someone want this? Maybe somewhen systemd will require the
bin-merge, too.

Any votes for or against hard-coding bin-merge?

> > -----Original Message-----
> > From: [email protected] <openembedded-
> > [email protected]> On Behalf Of Jörg Sommer via
> > lists.openembedded.org
> > Sent: Monday, August 24, 2026 2:48 PM
> > To: [email protected]; mathieu.dubois-
> > [email protected]; [email protected]; [email protected]
> > Cc: [email protected]; Randolph Sapp <[email protected]>; Jörg
> > Sommer <[email protected]>
> > Subject: [OE-core] [PATCH v3] bitbake.conf: Extend distro feature usrmerge 
> > to
> > merge bin+sbin
> >
> > From: Randolph Sapp <[email protected]>
> >
> > The split of bin and sbin became more artificial over time, and it is no
> > longer clear why programmes goes into the one or the other directory; e.g.
> > forever normal users have used sendmail in /usr/sbin, and fdisk and mkfs
> > learned to operate on files to create images long ago.
> >
> > Because systemd drives this movement to have only /usr/bin and symlink /bin,
> > /sbin and /usr/sbin to there, the usrmerge feature (started by systemd too)
> > should be extended to include the binmerge. For a system with split bin/sbin
> > `systemctl status` reports the system as tainted for *unmerged-bin.*
> >
> > Override most sbin variables to point to their bin equivalent when
> > usermerge is enabled, with the exception being base_sbindir_native and
> > sbindir_native. There is no guarantee the host machine is using this
> > filesystem scheme.
> >
> > This check was added to systemd back in 2024 [2].
> >
> > [1] https://gitlab.archlinux.org/archlinux/packaging/packages/filesystem/-
> > /blob/main/PKGBUILD
> > [2]
> > https://github.com/systemd/systemd/commit/844863c61e7b501097da84a1e4d1e
> > 4a6aa6d9f0d
> >
> > Signed-off-by: Randolph Sapp <[email protected]>
> > Signed-off-by: Jörg Sommer <[email protected]>
> > ---
> > Changes in v3:
> >
> > * rebase on systemd 261.2
> >
> > Changes in v2:
> >
> > * I took Randolph's version and reworked it a bit. But the idea stays the 
> > same.
> >
> > Reference to v1:
> >
> > * https://lists.openembedded.org/g/openembedded-core/message/234858
> >
> >  meta/classes-recipe/populate_sdk_base.bbclass | 2 ++
> >  meta/conf/bitbake.conf                        | 8 ++++----
> >  meta/recipes-core/systemd/systemd_261.2.bb    | 6 +++---
> >  3 files changed, 9 insertions(+), 7 deletions(-)
> >
> > diff --git a/meta/classes-recipe/populate_sdk_base.bbclass b/meta/classes-
> > recipe/populate_sdk_base.bbclass
> > index f32e9add01..f9367d0d17 100644
> > --- a/meta/classes-recipe/populate_sdk_base.bbclass
> > +++ b/meta/classes-recipe/populate_sdk_base.bbclass
> > @@ -188,6 +188,8 @@ create_merged_usr_symlinks() {
> >      install -d $root${base_bindir} $root${base_sbindir} $root${base_libdir}
> >      ln -rs $root${base_bindir} $root/bin
> >      ln -rs $root${base_sbindir} $root/sbin
> > +    # if base_sbindir == base_bindir, aka binmerge
> > +    test -e $root/usr/sbin || ln -rs $root${base_bindir} $root/usr/sbin
> >      ln -rs $root${base_libdir} $root/${baselib}
> >
> >      if [ "${nonarch_base_libdir}" != "${base_libdir}" ]; then
> > diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
> > index 41e98ce629..a6833f98de 100644
> > --- a/meta/conf/bitbake.conf
> > +++ b/meta/conf/bitbake.conf
> > @@ -22,7 +22,7 @@ root_prefix = "${@bb.utils.contains('DISTRO_FEATURES',
> > 'usrmerge', '${exec_prefi
> >
> >  # Base paths
> >  export base_bindir = "${root_prefix}/bin"
> > -export base_sbindir = "${root_prefix}/sbin"
> > +export base_sbindir = "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge',
> > '${base_bindir}', '${root_prefix}/sbin', d)}"
> >  export base_libdir = "${root_prefix}/${baselib}"
> >  export nonarch_base_libdir = "${root_prefix}/lib"
> >
> > @@ -44,7 +44,7 @@ firmwaredir = "${nonarch_base_libdir}/firmware"
> >
> >  # Architecture dependent paths
> >  export bindir = "${exec_prefix}/bin"
> > -export sbindir = "${exec_prefix}/sbin"
> > +export sbindir = "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge',
> > '${bindir}', '${exec_prefix}/sbin', d)}"
> >  export libdir = "${exec_prefix}/${baselib}"
> >  export libexecdir = "${exec_prefix}/libexec"
> >  export includedir = "${exec_prefix}/include"
> > @@ -66,9 +66,9 @@ bindir_cross = "/bin"
> >  bindir_crossscripts = "${bindir}/crossscripts"
> >  prefix_nativesdk = "/usr"
> >  bindir_nativesdk = "${prefix_nativesdk}/bin"
> > -sbindir_nativesdk = "${prefix_nativesdk}/sbin"
> > +sbindir_nativesdk = "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge',
> > '${bindir_nativesdk}', '${prefix_nativesdk}/sbin', d)}"
> >  base_bindir_nativesdk = "/bin"
> > -base_sbindir_nativesdk = "/sbin"
> > +base_sbindir_nativesdk = "${@bb.utils.contains('DISTRO_FEATURES',
> > 'usrmerge', '${base_bindir_nativesdk}', '/sbin', d)}"
> >  includedir_nativesdk = "${prefix_nativesdk}/include"
> >  libdir_nativesdk = "${prefix_nativesdk}/lib"
> >  base_libdir_nativesdk = "/lib"
> > diff --git a/meta/recipes-core/systemd/systemd_261.2.bb b/meta/recipes-
> > core/systemd/systemd_261.2.bb
> > index 8237b040a5..4475fb2514 100644
> > --- a/meta/recipes-core/systemd/systemd_261.2.bb
> > +++ b/meta/recipes-core/systemd/systemd_261.2.bb
> > @@ -196,7 +196,6 @@ def build_epoch(d):
> >  PACKAGECONFIG[set-time-epoch] = "${@build_epoch(d)},-Dtime-epoch=0"
> >  PACKAGECONFIG[timedated] = "-Dtimedated=true,-Dtimedated=false"
> >  PACKAGECONFIG[timesyncd] = "-Dtimesyncd=true,-Dtimesyncd=false"
> > -PACKAGECONFIG[sbinmerge] = "-Dsplit-bin=false,-Dsplit-bin=true"
> >  PACKAGECONFIG[userdb] = "-Duserdb=true,-Duserdb=false"
> >  PACKAGECONFIG[utmp] = "-Dutmp=true,-Dutmp=false"
> >  PACKAGECONFIG[valgrind] = "-DVALGRIND=1,,valgrind"
> > @@ -227,6 +226,7 @@ EXTRA_OEMESON += "-Dnobody-user=nobody \
> >                    -Dtranslations=${@'false' if d.getVar('USE_NLS') == 'no' 
> > else 'true'} \
> >                    ${@bb.utils.contains('DISTRO_FEATURES', 'zeroconf', 
> > '-Ddefault-
> > mdns=no -Ddefault-llmnr=no', '', d)} \
> >                    -Ddbus=disabled \
> > +                  -Dsplit-bin=${@'false' if '${bindir}' == '${sbindir}' 
> > else 'true'} \
> >                    -Dtests=false \
> >                    -Dlibc=${TCLIBC} \
> >                    "
> > @@ -343,8 +343,8 @@ do_install() {
> >               install -m 0644
> > ${UNPACKDIR}/org.freedesktop.hostname1_no_polkit.conf ${D}${datadir}/dbus-
> > 1/system.d/
> >       fi
> >
> > -     # create link for existing udev rules
> > -     ln -s ${base_bindir}/udevadm ${D}${base_sbindir}/udevadm
> > +     # create link for old udev rules
> > +     test -e ${D}${base_sbindir}/udevadm || ln -s ${base_bindir}/udevadm
> > ${D}${base_sbindir}/udevadm
> >
> >       # install default policy for presets
> >       # https://www.freedesktop.org/wiki/Software/systemd/Preset/#howto
> > --
> > 2.53.0
> 
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