On Thu, May 2, 2013 at 12:23 PM, Gary Thomas <g...@mlbassoc.com> wrote: > On 2013-05-02 09:52, Paul Barker wrote: >> Sounds great though it may take a long time to copy files to an SD >> card (I noticed a similar opinion at >> http://www.raspbian.org/RaspbianInstaller). May be quicker to generate >> an image file with the correct size first then dd that to the card. > > > The problem with this approach is that the generated image will typically > be many gigabytes in size (typical SD cards are 4GB on up). The time to > copy such an image to the physical card can be very large indeed.
Which is how the bmaptool steps in and helps. It analyzes the image for holes (and/or blocks of zeros?) and only copies over the relevant, non hole/zero parts. Substantially improving the transfer time, especially for the larger images. If I knew the best way to integrate it with Yocto, I'd submit patches to include it. But for the time-being I'll just mention it :-) _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
