Darren Hart wrote on 2012-01-19:
> On 01/18/2012 06:18 AM, Dexuan Cui wrote:
>> The self-hosted-image work needs a live-bootable and r/w-able image
>> format. The existing .iso isn't ok since it's readonly. The existing
>> .hddimg is not a good choice, since it has a two-option(boot, install)
>> syslinux function that we don't need: we don't hope a user to be
>> potentially able to "install", and I think it may be not suitble to
>> hack build_hddimg to hide the "install"?
>
> bootimg.bbclass should probably be renamed liveimg.bbclass to keep
> it's meaning clear.
Good suggestion.
>> Moreever, .hddimg is not that compatibible with some devices and we
>> hope to have the most compatibility.
>>
>> So I think the .hdddirect format is a good choice and I made this patch
>> to adopt it and also enhanced boot-directdisk.bbclass to generate .vmdk
>> image so we can run it on vmware, too. BTW, currently self-hosted-image
>> is the only user of boot-directdisk.bbclass; with the adoption of
>> .hdddirect and .vmdk formats, a user can still use "IMAGE_FSTYPES +=
>> 'live'" to generate the .iso and .hddimg format.
>>
>> Signed-off-by: Dexuan Cui <dexuan....@intel.com>
>> ---
>> meta/classes/boot-directdisk.bbclass | 8 ++++++++
>> meta/conf/machine/include/qemu.inc | 2 ++
>> meta/recipes-core/images/self-hosted-image.bb | 11 +++++++++--
>> 3 files changed, 19 insertions(+), 2 deletions(-)
>> diff --git a/meta/classes/boot-directdisk.bbclass
>> b/meta/classes/boot-directdisk.bbclass index 8879ba8..7f14225 100644
>> --- a/meta/classes/boot-directdisk.bbclass +++
>> b/meta/classes/boot-directdisk.bbclass @@ -24,6 +24,7 @@
>> do_bootdirectdisk[depends] += "dosfstools-native:do_populate_sysroot \
>>
>> syslinux-native:do_populate_sysroot \
>>
>> parted-native:do_populate_sysroot \
>>
>> mtools-native:do_populate_sysroot " +do_bootdirectdisk[depends] +=
>> "qemu-native:do_populate_sysroot"
>
> As a point of style, just add the new dependencies to the preceding
> assignment rather than creating a new assignment.
Ok, I'll add the new dependency into the existing
do_bootdirectdisk[depends] rather than creating a new += line.
>>
>> PACKAGES = " "
>> EXCLUDE_FROM_WORLD = "1"
>> @@ -50,6 +51,7 @@ build_boot_dd() {
>>
>> install -d ${HDDDIR}
>> install -m 0644 ${STAGING_DIR_HOST}/kernel/bzImage
> ${HDDDIR}/vmlinuz
>> + install -m 0644 ${S}/syslinux.cfg ${HDDDIR}/syslinux.cfg
>> install -m 444 ${STAGING_LIBDIR}/syslinux/ldlinux.sys
>> ${HDDDIR}/ldlinux.sys
>>
>> BLOCKS=`du -bks ${HDDDIR} | cut -f 1` @@ -83,6 +85,12 @@
>> build_boot_dd() { cd ${DEPLOY_DIR_IMAGE} rm -f
>> ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect ln -s
>> ${IMAGE_NAME}.hdddirect
>> ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect
>> +
>> + if [ "${NOVMDK}" != "1" ] ; then
>> + ${STAGING_BINDIR_NATIVE}/qemu-img convert -O vmdk \
>> + ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect \
>> + ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.vmdk
>> + fi
>> }
>>
>> python do_bootdirectdisk() {
>> diff --git a/meta/conf/machine/include/qemu.inc
>> b/meta/conf/machine/include/qemu.inc index 3cebfab..a5b563b 100644 ---
>> a/meta/conf/machine/include/qemu.inc +++
>> b/meta/conf/machine/include/qemu.inc @@ -5,6 +5,8 @@ MACHINE_FEATURES =
>> "kernel26 apm alsa pcmcia bluetooth irda usbgadget screen"
>>
>> IMAGE_FSTYPES ?= "tar.bz2 ext3"
>> +APPEND_${MACHINE} = "root=/dev/hda2"
>> +
>
> This concerns me. How does this interact with other recipes and configs
> that may set this? What happens if the machine config adds a console
> parameter to the APPEND? For example, the meta-intel n450 does the
> following:
>
> APPEND += "console=ttyS0,115200 console=tty0"
>
> If I understand correctly, your assignment above will override this.
My change (the below line) is only in qemu.inc
+ APPEND_${MACHINE} = "root=/dev/hda2"
So n450 is not affected here.
However, I do need to think more about the interact with others, e.g.,
in the case of n450, the APPEND in boot-directdisk.bbclass actually
overrides the value assigned in atom-pc.conf -- this is an existing issue.
I think nobody tested this before, so we didn't notice this.
I'll try to work out a new version.
>
>> ROOT_FLASH_SIZE = "280"
>>
>> # Don't include kernels in standard images diff --git
>> a/meta/recipes-core/images/self-hosted-image.bb
>> b/meta/recipes-core/images/self-hosted-image.bb
>> index 111c057..df6c81f 100644
>> --- a/meta/recipes-core/images/self-hosted-image.bb
>> +++ b/meta/recipes-core/images/self-hosted-image.bb
>> @@ -6,6 +6,13 @@ POKY_EXTRA_INSTALL = "\
>>
>> IMAGE_FEATURES += "x11-mini"
>> -inherit core-image +# Needed by boot-directdisk +ROOTFS ?=
>> "${DEPLOY_DIR_IMAGE}/${IMAGE_BASENAME}-${MACHINE}.ext3"
>>
>> -PR = "r2"
>> +inherit core-image boot-directdisk
>> +
>> +do_bootimg[depends] += "${INITRD_IMAGE}:do_rootfs"
>> +do_bootimg[depends] += "${IMAGE_BASENAME}:do_rootfs"
>> +do_bootdirectdisk[depends] += "${PN}:do_rootfs"
>> +
>> +PR = "r3"
>
Thanks,
-- Dexuan
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