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From: Michael Chang <mchang@suse.com>
To: The development of GNU GRUB <grub-devel@gnu.org>
Subject: Re: [PATCH 4/4] Allow protocol to be separated from host with a semicolon
Date: Wed, 25 Jan 2017 14:18:47 +0800	[thread overview]
Message-ID: <20170125061847.GB16351@linux-9gqx.suse.de> (raw)
In-Reply-To: <CAPeXnHvEWz_3Dwmkqn+y3SBRKuQB=SdBK+4x-NmZnc1LbGagJA@mail.gmail.com>

On Tue, Jan 24, 2017 at 12:50:37PM -0800, Matthew Garrett wrote:
> On Mon, Jan 23, 2017 at 8:02 PM, Andrei Borzenkov <arvidjaar@gmail.com> wrote:
> > 24.01.2017 03:36, Matthew Garrett пишет:
> >> Some DHCP servers (such as dnsmasq) tokenise parameters with commas, making
> >> it impossible to pass boot files with commas in them. Allow using a
> >
> > grub_net_open() operates on devices, not files. Please give more details
> > about your problem.
> 
> The DHCP server will return a string in the boot_file field. If you
> want to indicate that this file should be obtained over http, the
> easiest way to handle this is to provide a boot file in the form
> (http,host)filename. Unfortunately dnsmasq uses commas to tokenise its
> configuration parameters and there appears to be no way to override
> that, which makes it impossible to provide a boot file in this form.
> Allowing the use of an alternative character avoids this problem.

To my understanding, you can (and have to) use the url form in boot-file and
specify vendor-class-identifier to "HTTPClient" to let the UEFI firmware knows
this as a response to HTTP boot request and handle that boot-file accordingly,
then continue with that url loaded and run as NBP.

Here the article provide some examples.

https://en.opensuse.org/UEFI_HTTPBoot_with_OVMF

I suppose you may be running the bootp for setting up the client network
interface and wanted it to have work with http hosting the os images in some
way ? Anyway the config seems not to work with what UEFI prosposed for HTTP
Boot and I'd suggest to check that first.

Thanks,
Michael

> 
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> https://lists.gnu.org/mailman/listinfo/grub-devel


  parent reply	other threads:[~2017-01-25  6:19 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-24  0:35 Misc network boot patches Matthew Garrett
2017-01-24  0:35 ` [PATCH 1/4] Allow non-default ports for HTTP requests Matthew Garrett
2017-01-29  6:50   ` Andrei Borzenkov
2017-01-24  0:35 ` [PATCH 2/4] Send a user class identifier in bootp requests and tag it as DHCP discover Matthew Garrett
2017-01-24  6:09   ` Michael Marineau
2017-01-24  0:36 ` [PATCH 3/4] Don't allocate a new address buffer if we receive multiple DNS responses Matthew Garrett
2017-01-24  3:55   ` Andrei Borzenkov
2017-01-24 20:52     ` Matthew Garrett
2017-01-24  0:36 ` [PATCH 4/4] Allow protocol to be separated from host with a semicolon Matthew Garrett
2017-01-24  4:02   ` Andrei Borzenkov
2017-01-24 20:50     ` Matthew Garrett
2017-01-25  3:48       ` Andrei Borzenkov
2017-01-25  4:06         ` Matthew Garrett
2017-01-25  4:15           ` Andrei Borzenkov
2017-01-25  4:25             ` Matthew Garrett
2017-01-25  6:56               ` Andrei Borzenkov
2017-01-25  7:16                 ` Matthew Garrett
2017-01-25  7:37                   ` Andrei Borzenkov
2017-01-25  9:00                     ` Matthew Garrett
2017-01-25  6:18       ` Michael Chang [this message]
2017-01-25  6:21         ` Matthew Garrett
2017-01-25  8:35           ` Michael Chang
2017-01-25  9:02             ` Matthew Garrett
2017-01-25 17:30       ` Andrei Borzenkov
2017-01-25 23:33         ` Matthew Garrett
  -- strict thread matches above, loose matches on Subject: below --
2017-01-23 23:45 [PATCH 1/4] Allow non-default ports for HTTP requests Matthew Garrett
2017-01-23 23:45 ` [PATCH 4/4] Allow protocol to be separated from host with a semicolon Matthew Garrett

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