Re: [PATCH] generic/224: Increase filesystem instance size to 1.5 GiB

Theodore Ts'o
2015-08-31T18:11:32Z

On Sun, Aug 30, 2015 at 08:16:21PM +0530, Chandan Rajendra wrote:
> For small filesystem instances (i.e. size <= 1 GiB), mkfs.btrfs fails when
> "data block size" does not match with the "metadata block size" specified on
> the mkfs.btrfs command line. This commit increases the size of filesystem
> instance created so that the test can be executed on subpagesize-blocksize
> Btrfs instances which have different values for data and metadata blocksizes.

Stupid question --- why isn't this considered a bug in mkfs.btrfs?
Does btrfs simply not support file systems <= 1 GB? So if someone has
a 1GB USB disk or SD card, what's the official advice from the btrfs
developers? Use xfs or ext4?

- Ted