Bug 4204 - PREFERRED_VERSION_linux-yocto does not override machine specific settings in poky.conf
Summary: PREFERRED_VERSION_linux-yocto does not override machine specific settings in ...
Status: VERIFIED NOTABUG
Alias: None
Product: Meta-yocto
Classification: Build System, Metadata & Runtime
Component: meta-yocto (show other bugs)
Version: unspecified
Hardware: x86 Multiple
: Undecided normal
Target Milestone: ---
Assignee: Richard Purdie
QA Contact: Bogdan Alexandru Voiculescu
URL:
Whiteboard:
Depends on:
Blocks:
 
Reported: 2013-04-04 23:48 UTC by Song Liu
Modified: 2015-10-28 09:38 UTC (History)
4 users (show)

See Also:
OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: No (bug/feature does not impact docs)

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Song Liu 2013-04-04 23:48:57 UTC 
Set this in local.conf:

PREFERRED_VERSION_linux-yocto = "3.4%"

to build a qemux86 image with 3.4 kernel. But the machine specific settings in poky.conf overrides this and continue building 3.8 kernel.

As a user I think the generic settings in local.conf reflects the user's intent and should have the highest priority. 


 4461 # $PREFERRED_VERSION_linux-yocto [5 operations]
 4462 #   set /home/liusong/yocto/yp-beta-build/conf/local.conf:249
 4463 #     "3.4%"
 4464 #   set? /home/liusong/yocto/beta/meta-yocto/conf/distro/poky.conf:17
 4465 #     "3.4%"
 4466 #   finalize ast.py:331 [finalize]
 4467 #     "was: 3.4%"
 4468 #   override[qemux86]:set? /home/liusong/yocto/beta/meta-yocto/conf/distro/poky.conf:18
 4469 #     "3.8%"
 4470 #   finalize override[qemux86]:
 4471 #     "3.8%"
 4472 # computed:
 4473 #   "3.8%"
 4474 PREFERRED_VERSION_linux-yocto="3.8%"
Comment 1 Chen Qi 2013-04-08 07:22:38 UTC 
Notice the 'override' message in your log.
"
4468 #   override[qemux86]:set? /home/liusong/yocto/beta/meta-yocto/conf/distro/poky.conf:18
 4469 #     "3.8%"
 4470 #   finalize override[qemux86]:
 4471 #     "3.8%"
"

What about using PREFERRED_VERSION_linux-yocto_qemux86 = "3.4%" ?


//Chen Qi
Comment 2 Richard Purdie 2013-04-08 14:30:51 UTC 
This is working as designed, even if it is not intuative. As Chen points out, you can use a machine override to force this, or you can use the forcevariable override which wins over all others:

PREFERRED_VERSION_linux-yocto_forcevariable = "3.4%"
Comment 3 Bogdan Alexandru Voiculescu 2015-10-28 09:38:14 UTC 
Verified as not a bug; I filled a separated bug for updating the documentation: how to easily change the kernel version: Bug 8595