On 26 May 2023, at 16:23, James Puderer via lists.yoctoproject.org <jpuderer=littlebox...@lists.yoctoproject.org> wrote: > > Hello all, > > I'm trying to figure out how to set the `nodatacow` flag on a directory in a > BTRFS image at build time. Normally this is done by running 'chattr +c > <dir>'. Unfortunately, this doesn't seem to be something supported by > fakeroot/pseudo. I would really like to avoid doing it at runtime, or > mounting the filesystem in loopback mode (requires root). > > This seems like something that Yocto *should* be able to do. Am I missing > something? If not, what would be the correct place to implement something > like this?
When and how are you trying to do this? If it’s at rootfs time then the rootfs isn’t yet in the target btrfs format but simply a directory on in your build tree, and you’ll need to test that the attrs survive the transition from a directory to a btrfs image. Ross
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