Currently there are multiple issues with useradd:
* If base-passwd rebuilds, it wipes out recipe specific user/group additions
to sysroots and causes errors
* If recipe A adds a user and recipe B depends on A, it can't see any of the
users/groups A adds.
This patch changes base-passwd so it always works as a postinst script
within the sysroot and copies in the master files, then runs any
postinst-useradd-* scripts afterwards to add additional user/groups.
The postinst-useradd-* scripts are tweaked so that if /etc/passwd doesn't exist
they just exit, knowning they'll be executed later. We also add a dummy entry to
the dummy passwd file from pseudo so we can avoid this too.
There is a problem where if recipe A adds a user and recipe B depends on A but
doesn't care about users, it may not have a dependency on the useradd/groupadd
tools which would therefore not be available in B's sysroot. We therefore also
tweak postinst-useradd-* scripts so that if the tools aren't present we simply
don't add users. If you need the users, you add a dependency on the tools in the
recipe and they'll be added.
We add postinst-* to SSTATE_SCAN_FILES since almost any postinst script of this
kind is going to need relocation help.
We also ensure that the postinst-useradd script is written into the sstate
object as the current script was only being added in a recipe local way.
Thanks to Peter Kjellerstedt <pkj@axis.com> and Patrick Ohly for some pieces
of this patch.
[Yocto #11124]
(From OE-Core rev: 1b5afaf437f7a1107d4edca8eeb668b9618a5488)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
b5c383074a