RE: [PATCH] bitbake: Move the preferred bootstrap assignment before including local.conf

["'Liu, Yi' via isar-users" <isar-users@googlegroups.com>]

> -----Original Message-----
> From: Kiszka, Jan (FT RPD CED) <jan.kiszka@siemens.com>
> Sent: Thursday, October 30, 2025 7:29 PM
> To: Liu, Yi (FT RPD CED INW-CN) <liuyi@siemens.com>; isar-
> users@googlegroups.com
> Subject: Re: [PATCH] bitbake: Move the preferred bootstrap assignment
> before including local.conf
> 
> On 30.10.25 04:06, 'Liu Yi' via isar-users wrote:
> > This change relocates the assignment for the preferred providers of
> > the bootstrap-host and bootstrap-target to occur before including
> > local.conf, ensuring that these two variables in local.conf can be
> > overwritten by the end users.
> >
> > Signed-off-by: Liu Yi <liuyi@siemens.com>
> > ---
> >  meta/conf/bitbake.conf | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf index
> > 5ab8ced7..a06ef90e 100644
> > --- a/meta/conf/bitbake.conf
> > +++ b/meta/conf/bitbake.conf
> > @@ -210,6 +210,9 @@ TASK_USE_NETWORK = "1"
> >  TASK_USE_SUDO = "1"
> >  TASK_USE_NETWORK_AND_SUDO = "1"
> >
> > +PREFERRED_PROVIDER_bootstrap-host ??= "isar-mmdebstrap-host"
> > +PREFERRED_PROVIDER_bootstrap-target ??= "isar-mmdebstrap-target"
> > +
> >  include conf/local.conf
> >  include conf/multiconfig/${BB_CURRENT_MC}.conf
> >  include conf/machine/${MACHINE}.conf
> > @@ -217,5 +220,3 @@ include conf/distro/${DISTRO}.conf
> >
> >  PATCHRESOLVE ?= "noop"
> >
> > -PREFERRED_PROVIDER_bootstrap-host ??= "isar-mmdebstrap-host"
> > -PREFERRED_PROVIDER_bootstrap-target ??= "isar-mmdebstrap-target"
> 
> Looks good.
> 
> I suppose that this comes from some out-of-tree experiments with a non-
> Debian, non-Raspberry and non-Ubuntu OS? ;)
> 
> Jan
> 
> --
> Siemens AG, Foundational Technologies
> Linux Expert Center

You guessed it.  

This comes from the experiment of building openKylinOS via ISAR. 

Somehow the build process got failed in the task do_bootstrap due to uninstalling of libc6,  
if I chose the mmdebstrap as the preferred one.

So, I tried to switch to debootstrap in local.conf or in local-conf-head from kas yaml,  
then found it always be overwritten by the value from bitbake.conf.

Best Regards,
Liu Yi 

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