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From: Mihai Moldovan <ionic@ionic.de>
To: The development of GNU GRUB <grub-devel@gnu.org>,
	youling 257 <youling257@gmail.com>
Subject: Re: is possible allow GRUB to mount ext4/f2fs filesystems that have the casefold feature?
Date: Mon, 27 Dec 2021 08:22:28 +0100	[thread overview]
Message-ID: <eac0db0a-3ec6-bd35-7002-48664155fbed@ionic.de> (raw)
In-Reply-To: <CAOzgRdY=ekTgPTczSh=q80GLC36wfsRxbXekovd2R3m-1zruXQ@mail.gmail.com>


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* On 12/27/21 6:36 AM, youling 257 wrote:
> now, linux kernel ext4/f2fs filesystem can support casefold. i used this commond
> to format ext4 filesystem.
> 
> mkfs.ext4 -F -O 64bit -L '' -E encoding=utf8 '/dev/block/nvme1n1p1'
> 
> but grub can't found vmlinuz and initrd.img on casefold ext4 filesystem.

Since casefolding is an INCOMPAT feature (c.f.,
https://elixir.bootlin.com/linux/latest/source/fs/ext4/ext4.h#L2034 ), and grub
does not implement that feature, grub will not be able to read such a file system.

Feel free to implement the feature, patches welcome and the like.



Mihai


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      reply	other threads:[~2021-12-27  7:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-27  5:36 is possible allow GRUB to mount ext4/f2fs filesystems that have the casefold feature? youling 257
2021-12-27  7:22 ` Mihai Moldovan [this message]

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