Hi James
On Thu, Aug 4, 2011 at 6:46 AM, James Tunnicliffe james.tunnicliffe@linaro.org wrote:
Hi,
Our current default root file system, ext3, is proving to be a bottleneck for SD card performance. Not only does it take a long time to format the partitions, but it also takes a long time to write to. This slows down creating images on SD cards a lot. I just did a very simple experiment running linaro-media-create, writing an Ubuntu Desktop image to an SD card:
<snip>
As I understand it, btrfs is considered OK for file systems running on systems that don't suffer from power failure, so for writing an image and testing it this should be fine.
So, what do people think about switching?
There's no need to switch. btrfs vs ext* is simply a choice to be made at the time you call linaro-media-create. There's nothing stopping you from using btrfs if that's what you want to do with all the caveats etc that have been stated by others.