From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lingzhu Xiang <lxiang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: efivarfs allows non-canonical GUID and duplicate filenames
Date: Tue, 29 Jan 2013 13:17:10 +0800
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References: <1351237923-10313-1-git-send-email-matt@console-pimps.org> <1351237923-10313-2-git-send-email-matt@console-pimps.org> <51022DD7.4010701@redhat.com> <20130129044418.GD14395@srcf.ucam.org>
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To: Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
Cc: Matt Fleming <matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Matthew Garrett <mjg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Jeremy Kerr <jeremy.kerr-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>, Andy Whitcroft <apw-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>, Jan Beulich <JBeulich-IBi9RG/b67k@public.gmane.org>, Chun-Yi Lee <joeyli.kernel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Matt Fleming <matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
List-Id: linux-efi@vger.kernel.org

On 01/29/2013 12:44 PM, Matthew Garrett wrote:
>> [root@qemu-ovmf efivars]# touch BootOrder-8BE4DF61-93CA-11D2-AA0D-00E098032B8C
>
> Ha ok. Other than the change in name over unmount, does this one cause
> any problems?

This demonstrates how to create two files with the same name in efivarfs.

[root@qemu-ovmf efivars]# ll BootOrder*
-rw-r--r--. 1 root root 12 Jan 25 14:56 
BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c
-rw-r--r--. 1 root root 12 Jan 25 14:56 
BootOrder-8be4df61-93ca-11d2-aa0d-00e098032b8c