Re: [f2fs-dev] Populate f2fs with files during mkfs.f2fs

[Chao Yu <chao@kernel.org>]

On 2022/3/19 20:55, Tomas Mudrunka wrote:
> Hello,
> i've noticed that mkfs.f2fs does not allow files to be copied to
> filesystem during formating by mkfs.f2fs.
> Do you think it would be hard to add such feature?
> 
> I understand that this might be a weird request which in some sense
> defies the definition of filesystem formating process. But there are
> also some arguments for this case.
> 
> In the world of embedded development we often need to build firmware
> images to be flashed into the device. And F2FS is one of the best suited
> filesystems for embedded and perhaps the one best for managed flash. So
> we naturaly want to use it and build into our fw images. However to
> build such image i need to create f2fs image, format it and then mount
> it using loopback, copy data to it, unmount, sync, handle errors, etc...
> And we have huge makefiles or stuff like genimage, to put all the image
> partitions and bootloaders and everything together. It just adds quite
> complexity to the embedded build systems.
> 
> Turns out that quite few filesystems already have this feature to
> simplify creating filesystem images without need for mounting or root
> permissions:
> 
> mkfs.ext4 -d ./input_directory
> mkfs.ubifs -d ./input_directory
> mkfs.jffs2 -d ./input_directory
> mkcramfs (obviously)
> mksquashfs (obviously)
> 
> would you please consider adding such feature as well?

Hi Tomas,

Can sload.f2fs satisfy this requirement?

Thanks,

> 
> Thank you
> 


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