linux-kernel - Re: UML/hostfs - mount failure at tip of tree

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Message-ID: <16363c16-9806-4e49-8a10-5620723fde05@huawei.com>
Date: Wed, 24 Jul 2024 10:54:09 +0800
From: Hongbo Li <lihongbo22@...wei.com>
To: Maciej Żenczykowski <maze@...gle.com>, Kernel hackers
	<linux-kernel@...r.kernel.org>
CC: Patrick Rohr <prohr@...gle.com>, Linus Torvalds
	<torvalds@...ux-foundation.org>, Christian Brauner <brauner@...nel.org>
Subject: Re: UML/hostfs - mount failure at tip of tree

On 2024/7/24 6:33, Maciej Żenczykowski wrote:
>    mount: /host: special device hostfs does not exist.
Hi, Maciej,

Sorry to bother you.

According to this output and the source code, I found the `src` is 
hostfs which seems like the fstype.

Can you provide the mount command? Is it like "mount none /mnt/home -t 
hostfs -o /home" or embedded in the boot command"./linux xxx 
rootfstype=hostfs hostfs=.."?

Thanks,
Hongbo