Building XFS images

Building XFS images

[Drew Moseley]

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I'm attempting to add image type support for XFS images.  The utils are
in meta-filesystems and seem to work just fine.  However, mkfs.xfs does
not have the ability to add files into an image as it is created, which
the other mkfs.* utilities do.  Outside of bitbake builds, I can
obviously just loopback mount and copy using sudo to ensure ownership,
etc is preserved.  It doesn't look like pseudo/fakeroot support mounting
images and the copying with ownership.  Is there a mechanism to do this?


Drew



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Re: [yocto] Building XFS images

[Ross Burton]

On Tue, 21 Apr 2020 at 14:43, Drew Moseley via lists.yoctoproject.org
<drew.moseley=northern.tech@lists.yoctoproject.org> wrote:
> I'm attempting to add image type support for XFS images.  The utils are
> in meta-filesystems and seem to work just fine.  However, mkfs.xfs does
> not have the ability to add files into an image as it is created, which
> the other mkfs.* utilities do.  Outside of bitbake builds, I can
> obviously just loopback mount and copy using sudo to ensure ownership,
> etc is preserved.  It doesn't look like pseudo/fakeroot support mounting
> images and the copying with ownership.  Is there a mechanism to do this?

Right, to loopback mount you need to be root, and there's only so much
magic pseudo can do.  Even if you could loopback mount as a user,
you'd not have permission to write the correct ownership.

mkfs.xfs either needs a way to create a file system from a directory,
or an offline way to edit the filesystem.

Ross