Bug 1019

Summary: runqemu custom append options do not always work
Product: [Build System, Metadata & Runtime] Meta-yocto Reporter: Scott Garman <scott.a.garman>
Component: meta-yoctoAssignee: Scott Garman <scott.a.garman>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: Medium CC: poky.bs.watcher, poky.watcher, sgw
Version: 1.0   
Target Milestone: 1.1   
Hardware: x86   
OS: Multiple   
Whiteboard: Pull request submitted on 2011-09-03
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: ---
Attachments:
Description Flags
Allows additional kernel command line options to be easily provided none

Description Scott Garman 2011-05-02 15:29:37 UTC 
Darren demonstrated some issues with the runqemu script when he tried to specify kernel command line options. It appears that the --append options are listed before the default kernel --append options when the qemu utility is run, and there is some overriding behavior going on.

Fixing this may be as simple as moving custom --append options to the end of the qemu command string.
Comment 1 Gary Thomas 2011-05-18 04:58:49 UTC 
Created attachment 159 [details]
Allows additional kernel command line options to be easily provided

The attached patch is a reasonable fix for this problem by specifying
SCRIPT_KERNEL_OPT="additional kernel command line options" when the
script is run.

There are already such options for this script such as "SERIAL_LOGFILE"
If you want to use a different name for SCRIPT_KERNEL_OPT, that's fine,
but please make it easier to specify such kernel options.

Note: a very strong argument for this is a simple ability to suppress
the psplash boot screen (for debugging).  Without this option, one has
to edit the runqemu scripts, just to add 'psplash=false' when booting.
Comment 2 Scott Garman 2011-09-03 15:54:03 UTC 
It turns out Otavio Salvador fixed this bug by adding the undocumented bootparams option. So I added documention for this option in the usage screen and made use of a similar method for passing custom qemu options. Pull request pending on oe-core.