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From: Andrei Borzenkov <arvidjaar@gmail.com>
To: The development of GNU GRUB <grub-devel@gnu.org>
Subject: Re: Grub2 documentation of the GRUB_CMDLINE_*XEN* parameters -- unclear. What's _intended_?
Date: Sun, 22 Nov 2015 09:37:43 +0300	[thread overview]
Message-ID: <565162B7.7000000@gmail.com> (raw)
In-Reply-To: <56510884.8060908@gmail.com>

22.11.2015 03:12, PGNet Dev пишет:
> Grub2 documentation @
> https://www.gnu.org/software/grub/manual/grub.html#Configuration states
>
>      ...
>      ‘GRUB_CMDLINE_XEN’
>      ‘GRUB_CMDLINE_XEN_DEFAULT’
>
>          The values of these options are appended to the values of
> ‘GRUB_CMDLINE_LINUX’ and ‘GRUB_CMDLINE_LINUX_DEFAULT’ for Linux and Xen
> menu entries.

That's not what current manual says. Please use current upstream sources 
when you contact upstream.

>      ‘GRUB_CMDLINE_LINUX_XEN_REPLACE’
>      ‘GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT’
>
>          The values of these options replace the values of
> ‘GRUB_CMDLINE_LINUX’ and ‘GRUB_CMDLINE_LINUX_DEFAULT’ for Linux and Xen
> menu entries.

I agree it is a bit fuzzy. If set, it is used for Linux kernel arguments 
in Xen menu entries. Care to send a patch clarifying it?

>      ...
>
>  From these docs. it's not clear which values get mapped to which grub
> entries.  One set 'appends', one set 'replaces'.  Are they exclusive of
> one another?
>
> And, what specifically gets mapped to Xen kernel's "options=" parameter
> line?
>
> E.g., a grub2-mkconfig-generated xen*.cfg takes the form
>

Please direct this question to your distribution. For a start, there is 
no grub2-mkconfig upstream.

>      # disclaimer
>      [global]
>      #default=
>
>      [config.1]
>      options= dom0_mem= ...
>      kernel=vmlinuz-4.3.0-16.gff1dcd9-xen ...
>      ramdisk=initrd-4.3.0-16.gff1dcd9-xen ...
>
> whereas for a NON-xen grub*.cfg
>
>      # disclaimer
>      [global]
>      #default=
>
>      [config.1]
>      kernel=vmlinuz-4.3.0-16.gff1dcd9-default ...
>      ramdisk=initrd-4.3.0-16.gff1dcd9-default ...
>

I have no idea what you are talking about, sorry. Again, you need to 
direct this question to your distribution.

> there's NO "options=..." line.
>
> The docs should clearly address which PARAMETERS map to the "options="
> line, and which to the kernel=" line in the Xen case.
>
> To get there -- What's intended, by designn, from development in these
> specific *XEN* cases?
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> https://lists.gnu.org/mailman/listinfo/grub-devel



  reply	other threads:[~2015-11-22  6:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-22  0:12 Grub2 documentation of the GRUB_CMDLINE_*XEN* parameters -- unclear. What's _intended_? PGNet Dev
2015-11-22  6:37 ` Andrei Borzenkov [this message]
2015-11-22 15:00   ` PGNet Dev
2015-11-22 19:54 ` Colin Watson
2015-11-22 20:41   ` PGNet Dev

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