From: Joshua Lock <josh@linux.intel.com>
To: yocto@yoctoproject.org
Subject: Re: Deleting layers in Hob
Date: Tue, 27 Mar 2012 09:56:02 -0700 [thread overview]
Message-ID: <4F71F122.5070802@linux.intel.com> (raw)
In-Reply-To: <857BE142E5399E46B20FD45B9DB8A7BC0FD0B432@SHSMSX102.ccr.corp.intel.com>
On 27/03/12 00:19, Lu, Lianhao wrote:
>
>> -----Original Message-----
>> From: yocto-bounces@yoctoproject.org [mailto:yocto-bounces@yoctoproject.org] On Behalf Of Xu, Dongxiao
>> Sent: Tuesday, March 27, 2012 2:49 PM
>> To: yocto
>> Subject: [yocto] Deleting layers in Hob
>>
>> When using Hob in Yocto Project, I found a issue when deleting layers. I
>> think I ever raised this problem before.
>>
>> Let me briefly introduce how layer removal works in Hob. When user
>> changes a layer, it will following the below steps
>> 1) init the cooker.
>> 2) set new layers to cooker.
>> 3) parse configuration files.
>> 4) get available machines, distros, SDKs, etc.
>>
>> As we know, if we source oe-init-build-env in Yocto project environment,
>> we will have DISTRO="poky" set in local.conf by default, where the
>> "poky" DISTRO comes from the meta-yocto layer. If user deletes
>> meta-yocto in Hob, and then error will happen when bitbake parsing the
>> local.conf, since it could not find where the "poky" DISTRO is defined.
>>
>> Even if we are able to successfully removed the meta-yocto layer by
>> removing the DISTRO definition in local.conf, system will report another
>> issue that:
>>
>> Your configuration is using stamp files including the sstate hash but
>> your build directory was built with stamp files that do not include
>> this.
>> To continue, either rebuild or switch back to the OEBasic signature
>> handler with BB_SIGNATURE_HANDLER = 'OEBasic'.
>>
>> This is because BB_SIGNATURE_HANDLER = "OEBasic" is also defined in
>> meta-yocto layer (poky.conf).
>
> Meta-yocto is using OEBasicHash as default signature handler(ABI_VERSION=8, see ${TMPDIR}/abi_version), while oe-core is still using the OEBasic(ABI_VERSION=7). This means the oe-core can not reuse the stamp files generated by meta-yocto.
Could we workaround the incompatibility by setting BB_SIGNATURE_HANDLER
= "OEBasic" somewhere in meta-hob?
Cheers,
Joshua
--
Joshua '贾詡' Lock
Yocto Project "Johannes factotum"
Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-03-27 16:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-27 6:48 Deleting layers in Hob Xu, Dongxiao
2012-03-27 7:19 ` Lu, Lianhao
2012-03-27 16:56 ` Joshua Lock [this message]
2012-03-29 11:05 ` Barros Pena, Belen
2012-03-29 12:00 ` Xu, Dongxiao
2012-03-29 15:47 ` Barros Pena, Belen
2012-03-30 6:32 ` Khem Raj
2012-03-30 11:26 ` Barros Pena, Belen
2012-03-30 12:19 ` Paul Eggleton
2012-04-02 10:48 ` Barros Pena, Belen
2012-04-02 10:55 ` Paul Eggleton
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