[yocto] [ADT] Sysroot setup issue

Wed Aug 22 17:54:15 PDT 2012

Hi Rudi,

Good to hear that you've resolved your issue. For the kernel issue, would you mind to file a bug (enhancement) in our bugzilla for us to track? As to adt-installer, it is meant to be an alternative way for people to setup their cross development environment, so patches are always welcome, esp. from community.  The few things you've pointed out are all good and valid that worth to improve.

Thanks,

Jessica

From: rstreif at linuxfoundation.org [mailto:rstreif at linuxfoundation.org] On Behalf Of Rudolf Streif
Sent: Wednesday, August 22, 2012 5:37 PM
To: Zhang, Jessica
Cc: yocto at yoctoproject.org; Garman, Scott A
Subject: Re: [yocto] [ADT] Sysroot setup issue

Hi Jessica,

Thanks while responding while on vacation.

No worries. I have resolved the NFS boot issue. I entirely missed that my dev system had a firewall running blocking ports 3048 and 3049 used by the user-space rpc.mountd and rpc.nfsd daemons that runquemu-export-rootfs sets up. My fault. Sorry about that.

The kernel images may be an incorrect expectation from my side. I checked the ADT installer scripts and they do not seem to do anything with the kernel images they download. From my point of view it would make sense to copy them into <sysroot>/boot.

The adt_installer.conf file suggests that minimal, minimal-dev, sato, sato-dev, sato-sdk,lsb, lsb-dev, lsb-sdk are valid images for YOCTOADT_ROOTFS_<arch>, but really only the *-dev and *-sdk images make sense for an ADT as the others are missing the dev headers and libs.

While the ADT installer downloads all the image files specified in YOCTOADT_ROOTFS_<arch> it really only extracts the one specified by YOCTOADT_TARGET_SYSROOT_IMAGE_<arch> into the location specified by YOCTOADT_TARGET_SYSROOT_LOC_<arch>. If you keep the installer files around you can of course later install them with runqemu-extract-sdk but that's not necessarily intuitive.

I eventually extracted all the sysroot images into separate directories and created a link to the one I wanted to use with the name specified by YOCTOADT_TARGET_SYSROOT_LOC_<arch>. That works well.

I don't know what the overall direction of development for the ADT installer is but I could make some patches to address these items if that makes sense to the community.

:rjs

On Wed, Aug 22, 2012 at 5:16 PM, Zhang, Jessica <jessica.zhang at intel.com<mailto:jessica.zhang at intel.com>> wrote:

Hi Rudi,

I'm currently on vacation so have very limited access to my YP setup.  We've been using the sysroot and nfs like below to start qemu after adt-installation, can you give it a try to see whether there's problem or not?

Runqemu youradtinstallerdir/download_image/bzImage-qemux86.bin ${HOME}/test-yocto/x86

Scott,

Can you help answer or look into the boot dir missing kernel file issue that Rudi's reporting to see whether it's a bug on our end?

Thanks,

Jessica

From: yocto-bounces at yoctoproject.org<mailto:yocto-bounces at yoctoproject.org> [mailto:yocto-bounces at yoctoproject.org<mailto:yocto-bounces at yoctoproject.org>] On Behalf Of Rudolf Streif
Sent: Tuesday, August 21, 2012 1:17 PM
To: yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>
Subject: [yocto] [ADT] Sysroot setup issue

Hi,

I am trying to setup the ADT using an ADT installer. I have downloaded the installer from http://downloads.yoctoproject.org/releases/yocto/yocto-1.2.1/adt_installer/ as well as created my own installer using a build environment with Denzil 7.0.1.

The adt_installer.conf contains these settings:

YOCTOADT_REPO="http://adtrepo.yoctoproject.org/1.2.1"

YOCTOADT_TARGETS="arm x86"

YOCTOADT_QEMU="Y"

YOCTOADT_NFS_UTIL="Y"

YOCTOADT_ROOTFS_arm="minimal"

YOCTOADT_TARGET_SYSROOT_IMAGE_arm="minimal"

YOCTOADT_TARGET_SYSROOT_LOC_arm="$HOME/test-yocto/arm"

YOCTOADT_ROOTFS_x86="minimal"

YOCTOADT_TARGET_SYSROOT_IMAGE_x86="minimal"

YOCTOADT_TARGET_SYSROOT_LOC_x86="$HOME/test-yocto/x86"

The installer downloads kernel and root fs images. After the installation has finished

${HOME}/test-yocto/arm/boot does not contain any kernel images and

${HOME}/test-yocto/x86/boot only contains a empty link bzImage -> bzImage-3.2.18-yocto-standard

I manually copied the x86 kernel image bzImage-qemux86.bin from the download_image directory of the extracted installer tarball into the directory, initialized the ADT environment and then ran

runqemu ${HOME}/test-yocto/x86/boot/bzImage-qemux86.bin ${HOME}/test-yocto/x86

The NFS user-space server initializes on the tap0 interface and the kernel boots. However, it panics because it cannot locate the root fs. rpcbind is started with the -i option on my system.

I also ran QEMU directly using:

/opt/poky/1.2.1/sysroots/x86_64-pokysdk-linux/usr/bin/qemu -kernel /home/rudi/test-yocto/x86/boot/bzImage-qemux86.bin -show-cursor -usb -usbdevice wacom-tablet -vga vmware -enable-gl -no-reboot -m 128 --append "root=/dev/nfs nfsroot=192.168.100.199<http://192.168.100.199>://home/rudi/test-yocto/x86 rw ip=192.168.100.38::192.168.100.199:255.255.255.0 mem=128M oprofile.timer=1 "

with my dev system's NFS server running and exporting the file system (I verified that I can mount the exported file system via NFS).

Questions:

1.      Why do the sysroot boot directory not contain any kernel images? I don't think that is what it is supposed to be.
2.      Is there anything broken with the sysroot causing the boot process to fail when the kernel tries to access the root fs?
3.      Any hints on how to fix it?

Thanks,

Rudi

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