Re: [PATCH] kernel_lockdown.7: Remove description of lifting via SysRq (not upstream)

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Hello Alex, Dann,

On 5/27/21 7:13 PM, Alejandro Colomar wrote:
> From: dann frazier <dann.frazier@xxxxxxxxxxxxx>
> 
> The patch that implemented lockdown lifting via SysRq ended up getting
> dropped[*] before the feature was merged upstream. Having the feature
> documented but unsupported has caused some confusion for our users.
> 
> [*] http://archive.lwn.net:8080/linux-kernel/CACdnJuuxAM06TcnczOA6NwxhnmQUeqqm3Ma8btukZpuCS+dOqg@xxxxxxxxxxxxxx/
> 
> Signed-off-by: dann frazier <dann.frazier@xxxxxxxxxxxxx>
> Cc: Heinrich Schuchardt <xypron.glpk@xxxxxx>
> Cc: David Howells <dhowells@xxxxxxxxxx>
> Cc: Pedro Principeza <pedro.principeza@xxxxxxxxxxxxx>
> Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
> Cc: Kyle McMartin <kyle@xxxxxxxxxx>
> Cc: Matthew Garrett <mjg59@xxxxxxxxxx>
> Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx>

Thanks. Patch applied.

Cheers,

Michael

> ---
>  man7/kernel_lockdown.7 | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/man7/kernel_lockdown.7 b/man7/kernel_lockdown.7
> index 30863de62..b0442b3b6 100644
> --- a/man7/kernel_lockdown.7
> +++ b/man7/kernel_lockdown.7
> @@ -33,11 +33,6 @@ where X indicates the process name and Y indicates what is restricted.
>  .PP
>  On an EFI-enabled x86 or arm64 machine, lockdown will be automatically enabled
>  if the system boots in EFI Secure Boot mode.
> -.PP
> -If the kernel is appropriately configured, lockdown may be lifted by typing
> -the appropriate sequence on a directly attached physical keyboard.
> -For x86 machines, this is
> -.IR SysRq+x .
>  .\"
>  .SS Coverage
>  When lockdown is in effect, a number of features are disabled or have their
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/



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