[yocto] preserving file owners in do_package

Davide Soldan davide.soldan at kynetics.it
Fri Oct 18 06:31:22 PDT 2013


In data martedì 15 ottobre 2013 17:18:35, Paul Eggleton ha scritto:
> On Tuesday 15 October 2013 18:12:42 Davide Soldan wrote:
> > In data martedì 15 ottobre 2013 11:38:21, Paul Eggleton ha scritto:
> > > On Tuesday 15 October 2013 12:02:20 Davide Soldan wrote:
> > > > in my recipe I want to change owner and permission of a file, so I
> > > > wrote:
> > > > 
> > > > do_install() {
> > > > 
> > > >         ls -la ${D}/opt/user
> > > >         chown -R user ${D}/opt/user
> > > >         chgrp -R user ${D}/opt/user
> > > >         ls -la ${D}/opt/user
> > > >         chmod 754 ${D}/opt/user/user.sh
> > > >         ls -la ${D}/opt/user
> > > > 
> > > > }
> > > > 
> > > > the output of ls commands is:
> > > > 
> > > > drwxr-xr-x 8 root root   4096 Oct 15 11:13 .
> > > > drwxr-xr-x 3 root root   4096 Oct 15 11:13 ..
> > > > -rw-r--r-- 1 *root root*  55753 Aug  2 08:48 user.sh
> > > > 
> > > > drwxr-xr-x 8 user user   4096 Oct 15 11:13 .
> > > > drwxr-xr-x 3 root     root       4096 Oct 15 11:13 ..
> > > > -rw-r--r-- 1 *user user*  55753 Aug  2 08:48 user.sh
> > > > 
> > > > drwxr-xr-x 8 user user   4096 Oct 15 11:13 .
> > > > drwxr-xr-x 3 root     root       4096 Oct 15 11:13 ..
> > > > *-rwxr-xr--* 1 user user  55753 Aug  2 08:48 user.sh
> > > > 
> > > > So the change of owner and permission works fine in do_install phase.
> > > > Opening the final rootfs tarball, however, the file user.sh has still
> > > > 754
> > > > permission but root as owner...so do_package doesn't preserve owner
> > > > change
> > > > done in do_install? Or maybe I'm doing something wrong in changing file
> > > > owner? Any ideas? Thanks to all!
> > > 
> > > Does your recipe create the specified user via useradd.bbclass?
> > 
> > I solved with a postinstall script (that run at boot):
> > 
> > pkg_postinst_${PN}() {
> >         #!/bin/sh -e
> >         if [ x"$D" = "x" ]; then
> >           chown -R user /opt/user
> >           chgrp -R user /opt/user
> >         else
> >           exit 1
> >         fi
> > }
> 
> This shouldn't be necessary though. I honestly can't tell you why it doesn't 
> work as specified. I think it might be worth filing a bug for this.
> 
> Cheers,
> Paul
> 
> 
I'm so sorry Paul, but my mail client missed your last email and so I filed a bug uselessly...
I tried, as you suggested, to add the package that create the user to the RDEPENDS_${PN} removing the postinstall scripi. That worked setting the right owner with chown/chgrp in do_install...
Thank you so much. I very sorry for the useless bug opened...can I close it by myself?

Cheers
Davide



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