Re: [yocto] Fakeroot fails with externalsrc

[Gyorgy Sarvari <skandigraun@gmail.com>]

Pseudo ignores the source- and build-dirs[1] (and everything that's
inside them), via the PSEUDO_IGNORE_PATHS variable.
E.g. When you set "/userdata/codesys-runtimes" as EXTERNALSRC, that
becomes ${S} - every path that starts with this prefix will be outside
of fakeroot.
You need to change this folder structure in a way that the EXTERNALSRC
path doesn't clash with your Yocto build-dir - build-dir can contain the
source-dir, but the source-dir shouldn't contain the build-dir.

[1]: https://git.yoctoproject.org/poky/tree/meta/conf/bitbake.conf#n754

On 07.03.25 21:08, Kjeld Flarup via lists.yoctoproject.org wrote:
> Hi
>  
> I'm trying to make a CI/CD Yocto build in a git repository which is
> used in a recipe. 
>  
> I have made an include file
>  meta-codesys/recipes-codesys/codesys-src.inc which normally contains.
>
>     SRC_URI =
>     "gitsm://gitlab.deif.com/codesys/codesys-runtimes.git;protocol=https;branch=master"
>     SRCREV = "927fe8fa0b9e6537b3d7ec9f2231e13c4b367a61"
>
>  
> When building in the codesys-runtimes repository I clone the Yocto
> project and replaces codesys-src.inc with
>
>     inherit externalsrc
>     EXTERNALSRC = "/userdata/codesys-runtimes"
>     EXTERNALSRC_BUILD = "/userdata/codesys-runtimes/build"
>
> And then I run bitbake where I get this error
>
>      *** 0418:            os.lchown(path, uid, gid)
>          0419:
>          0420:    # Return a list of configuration files based on
>     either the default
>          0421:    # files/fs-perms.txt or the contents of
>     FILESYSTEM_PERMS_TABLES
>          0422:    # paths are resolved via BBPATH
>     Exception: PermissionError: [Errno 1] Operation not permitted:
>     '/userdata/codesys-runtimes/yocto/tmp-glibc/work/cortexa53-crypto-oe-linux/codesys-runtime/1.0-r0/package/usr'
>
>     ERROR: Logfile of failure stored in:
>     /userdata/codesys-runtimes/yocto/tmp-glibc/work/cortexa53-crypto-oe-linux/codesys-runtime/1.0-r0/temp/log.do_package.59961
>     ERROR: Task
>     (/userdata/codesys-runtimes/yocto/meta-codesys/recipes-codesys/codesys-runtime/codesys-runtime.bb:do_package)
>     failed with exit code '1'
>
>  
> The problem is that do_package tries to set uid to root, but that is
> not allowed, unless fakeroot is used.
> Why does this fail when externalsrc is used?
>  
> Just for the record, if I do not change codesys-src.inc it builds.
>  
> --
> --
> Regards 
> Kjeld Flarup
> DEIF A/S
>
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