On Fri, 2011-05-20 at 12:49 -0400, James Westby wrote:
On Fri, 20 May 2011 17:32:27 +0100, David Gilbert david.gilbert@linaro.org wrote:
On 20 May 2011 17:12, James Westby james.westby@linaro.org wrote:
On Fri, 20 May 2011 16:03:16 +0100, Peter Maydell peter.maydell@linaro.org wrote:
We're only doing this once a month, we should just produce images for everything rather than trying to second guess which we can get away with not generating.
While that's a nice sentiment, we can't ignore the disk space usage that this implies.
If we take as an example 6 supported boards, and 6 images (3x2G, 1x1G, 1x.5G, 1x.1G), that's ~48G per month, so in one year ~0.5T of images. I haven't done the maths to factor in the bandwidth here.
I don't quite understand your maths there; if you look at the Ubuntu ARM images they are 540MB for netbook and 200MB for headless (compressed). So at 6 boards to support that's ~4.2GB/month or ~50GB/year which is a lot less scary.
We decided that we would pregenerate one image size with some free space that can be directly written to an SD card.
But when compressed the free space doesn't make any difference, does it? I've gzipped a 2GB desktop image last week and it went down to around 500MB IIRC.