Bug 2612 - runqemu can't launch a poky-tiny image
Summary: runqemu can't launch a poky-tiny image
Status: VERIFIED FIXED
Alias: None
Product: Meta-yocto
Classification: Build System, Metadata & Runtime
Component: meta-yocto (show other bugs)
Version: 1.2
Hardware: x86 Multiple
: Medium normal
Target Milestone: 1.3 M3
Assignee: Scott Garman
QA Contact:
URL:
Whiteboard: 2012-08-10: Patch out for review on ML
: 3311 (view as bug list)
Depends on:
Blocks:
 
Reported: 2012-06-14 21:55 UTC by Darren Hart
Modified: 2012-12-07 18:18 UTC (History)
6 users (show)

See Also:
OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: ---

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Description Darren Hart 2012-06-14 21:55:00 UTC 
poky-tiny builds systems without block support by default. The intended method for booting a poky-tiny core-image-minimal image is using the cpio.gz image with /dev/ram0 as the rootfs. For example:

$ qemu -kernel bzImage-qemux86.bin -initrd core-image-minimal-qemux86.cpio.gz -nographic -append "console=ttyS0 root=/dev/ram0"

runqemu doesn't have anyway to run in this mode that I could see. This impacts Hob's ability to run a poky-tiny image.
Comment 1 Scott Garman 2012-06-20 16:28:33 UTC 
Looks like Kai has a full or partial fix for this in his work on bug #2579.
Comment 2 Scott Garman 2012-08-19 17:03:55 UTC 
Fixed in oe-core and poky master as of:

http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=5bffd94316d9e6d49afea001c6f0a1d09624379a
Comment 3 Scott Garman 2012-08-19 17:04:22 UTC 
Marking bug as fixed.
Comment 4 Yi Zhao 2012-09-04 05:59:14 UTC 
Verified with master branch: 37c8597e7600385367257e8a513e003947ebef5b

#############
$ bitbake core-image-minimal
$ runqemu qemux86 ramfs

Continuing with the following parameters:
KERNEL: [/buildarea2/yzhao-test/poky-build/build-tiny/tmp/deploy/images/bzImage-qemux86.bin]
ROOTFS: [/buildarea2/yzhao-test/poky-build/build-tiny/tmp/deploy/images/core-image-minimal-qemux86.cpio.gz]
FSTYPE: [cpio.gz]
Setting up tap interface under sudo
Acquiring lockfile for tap0...
WARNING: distccd not present, no distcc support loaded.
Running qemu...
/buildarea2/yzhao-test/poky-build/build-tiny/tmp/sysroots/x86_64-linux/usr/bin/qemu -kernel /buildarea2/yzhao-test/poky-build/build-tiny/tmp/deploy/images/bzImage-qemux86.bin -initrd /buildarea2/yzhao-test/poky-build/build-tiny/tmp/deploy/images/core-image-minimal-qemux86.cpio.gz -nographic -no-reboot -m 128 --append "root=/dev/ram0 "
Could not open option rom 'sgabios.bin': No such file or directory
[    0.000000] Linux version 3.2.18-yocto-tiny (builder@pek-yocto-build1) (gcc version 4.7.2 20120706 (prerelease) (GCC) ) #1 SMP PREEMPT Tue Sep 4 10:37:22 CST 2012
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009f400 (usable)
[    0.000000]  BIOS-e820: 000000000009f400 - 00000000000a0000 (reserved)
...
...
#################
Comment 5 Darren Hart 2012-12-07 18:18:21 UTC 
*** Bug 3311 has been marked as a duplicate of this bug. ***