From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qw0-f41.google.com (mail-qw0-f41.google.com [209.85.216.41]) by yocto-www.yoctoproject.org (Postfix) with ESMTP id 8F2A2E00599 for ; Thu, 19 Jan 2012 05:55:48 -0800 (PST) Received: by qadc11 with SMTP id c11so1835100qad.14 for ; Thu, 19 Jan 2012 05:55:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type; bh=9cedp0SAUzFovoy06OFH9gcoNoQ9eebMxfq6xQ9D7/c=; b=QQS1fqg+wD+677b8JxvYEGfcHSsE5KIHtXaMrtc6gShoQ+CNbhgcp6wv3mnWeoHXSH 9e54lXYj4/l6DBAwwqyr8evcJ6+BjRkl7bBAqkV1pNvRxLamWgOGMN+prr1eqbR0dwgD y4xhVQs+IeeNkISJEhPJNdOj5pPOgeGoStL5Y= Received: by 10.224.209.133 with SMTP id gg5mr27461196qab.40.1326981347731; Thu, 19 Jan 2012 05:55:47 -0800 (PST) Received: from [10.0.1.54] (nc-184-3-54-63.dhcp.embarqhsd.net. [184.3.54.63]) by mx.google.com with ESMTPS id hv20sm30312qab.22.2012.01.19.05.55.42 (version=SSLv3 cipher=OTHER); Thu, 19 Jan 2012 05:55:45 -0800 (PST) Message-ID: <4F1820DE.7060700@gmail.com> Date: Thu, 19 Jan 2012 08:55:42 -0500 From: Jim Abernathy User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111124 Thunderbird/8.0 MIME-Version: 1.0 To: Darren Hart References: <4F16DC5D.9070903@mlbassoc.com> <4F16DDCD.2020701@ti.com> <4F16E20C.9010909@ti.com> <4F16EE0D.1080805@ti.com> <4F16F0A2.9070805@gmail.com> <4F16F410.4050800@linux.intel.com> <4F16FBBF.6080406@gmail.com> <4F173AD5.4040200@linux.intel.com> In-Reply-To: <4F173AD5.4040200@linux.intel.com> Cc: yocto@yoctoproject.org Subject: Re: build failure on ubuntu 64bits development system X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Jan 2012 13:55:48 -0000 Content-Type: multipart/alternative; boundary="------------040902040604040804000403" --------------040902040604040804000403 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 01/18/2012 04:34 PM, Darren Hart wrote: > > On 01/18/2012 09:05 AM, Jim Abernathy wrote: > >> FYI for those wanting to use Soft RAID, make sure you create one very >> small primary partition for GRUB2 to put the second part of the >> boot-loader in. Can't use the old process. > I strongly recommend using a separate DISK for your OS installation. > Yocto builds are hard on disks, and RAID 0 increases your risk of > failure in exchange for the added performance. I use a small SSD for my > OS disk and a large RAID0 array of spinning disks for /build and another > array for /virt (where my VM images live - easily recreated). > Learned a few things in this process. I appreciate all the help and advice. 1. So we know that at least with Edison, btrfs does not work with bitbake. 2. When I rebuilt the system, this time I put the Linux root directory on an 80GB SSD. That is where I also have my clone of Linux-Yocto repository, poky, and download directory , DL_DIR. 3. I have create /build with EXT4 format on a Software RAID 0 (striped) partition, using 2 separate hard drives, to use as the working build directory for bitbake. I have a striped swap file on the same two drives. But with 8GB or RAM, I shouldn't be using that much. My build times for some of the basic meta-intel BSPs is around 103 minutes. Jim A --------------040902040604040804000403 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit On 01/18/2012 04:34 PM, Darren Hart wrote: 

On 01/18/2012 09:05 AM, Jim Abernathy wrote:


FYI for those wanting to use Soft RAID, make sure you create one very 
small primary partition for GRUB2 to put the second part of the 
boot-loader in.  Can't use the old process.

I strongly recommend using a separate DISK for your OS installation.
Yocto builds are hard on disks, and RAID 0 increases your risk of
failure in exchange for the added performance. I use a small SSD for my
OS disk and a large RAID0 array of spinning disks for /build and another
array for /virt (where my VM images live - easily recreated).
Learned a few things in this process. I appreciate all the help and advice.
  1. So we know that at least with Edison, btrfs does not work with bitbake.
  2. When I rebuilt the system, this time I put the Linux root directory on an 80GB SSD.  That is where I also have my clone of Linux-Yocto repository, poky, and download directory , DL_DIR.
  3. I have create /build with EXT4 format on a Software RAID 0 (striped) partition, using 2 separate hard drives,  to use as the working build directory for bitbake. I have a striped swap file on the same two drives.  But with 8GB or RAM, I shouldn't be using that much.
My build times for some of the basic meta-intel BSPs is around 103 minutes.

Jim A


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