The ARM BDS (ArmPlatformPkg/Bds) support booting from TFTP. As Andrew said,
TFTP is more a developer solution than a deployment solution.
From: Andrew Fish [mailto:af...@apple.com]
Sent: 23 June 2015 07:54
To: edk2-devel@lists.sourceforge.net
Cc: Olivier Martin
Subject: Re: [edk2] PXE with manual TFTP server and filename options
On Jun 22, 2015, at 11:29 PM, Radha Mohan
<mohun...@gmail.com<mailto:mohun...@gmail.com>> wrote:
On Mon, Jun 22, 2015 at 10:49 PM, Andrew Fish
<af...@apple.com<mailto:af...@apple.com>> wrote:
On Jun 22, 2015, at 10:26 PM, Radha Mohan
<mohun...@gmail.com<mailto:mohun...@gmail.com>> wrote:
On Mon, Jun 22, 2015 at 10:19 PM, Ye, Ting
<ting...@intel.com<mailto:ting...@intel.com>> wrote:
We use DHCP options to configure such information for PXE boot in UEFI
network stack.
Right, this is true when intel was the only platform..but now with
other architectures coming into fray..i think there should be more
flexibility..
There are lots of options for network booting in UEFI.
PXE
iSCSI
HTTP (New in UEFI 2.5)
You can produce an EFI_LOAD_FILE_PROTOCOL and boot how every you want.
The only thing missing in UEFI is a standard way to boot from a hardcoded
TFTP address and file. This is generally not a useful generic thing, it is
more of a developer thing. So it is usually just implemented as a shell
command. Or it is the boot loader that gets returned by the PXE server.
PXE is most sought after way (wonder why). In a network with mix of
x86 and arm servers, it would be a pain to manage pxe boot.
One needs to have special rules in dhcpd config to separate out the 2 archs.
I believe the present way is the TFTP server points to a netboot or
pxelinux efi binary (from syslinux) and then it uses NFS to do the
installation.
So if this binary is arch specific it will pose a problem in
multi-arch environment. Now if I want to launch a different binary I
have to go edit the dhcpd.conf (only if I manage the network).
I understand its kind of developer thing. But having an option for
developers to enter the server and file name is a more straight case
in my opinion if you are making a good software.
I don’t understand you point. Having a static IP and hard coded filename in
100,000 clients or servers is a “better” solution? What happens if the static
IP address of the server changes? We just moved offices and all our static IPs
changed. Or if the filename needs to get changed?
The HTTP boot solves a lot of problems with needing control of the DNS servers,
It can require some complexity on the backend, but that complexity has known
solutions (there are really popular cat videos on the internet and such).
As I pointed you can make a custom BDS today that supports booting from a
server with a static IP address, and TFTP filename via load file. It is not
really a good scalable solution to have static IP address, and magic filenames
configured in every client, so that is why it did not make it into the UEFI
spec.
Thanks,
Andrew Fish
This library can download a file from a TFTP remote using the PXE Protocols.
The same way an OS loader can use UEFI services to load more info.
https://svn.code.sf.net/p/edk2/code/trunk/edk2/EmbeddedPkg/Library/EfiFileLib/EfiFileLib.c
Thanks,
Andrew Fish
Best Regards,
Ye Ting
-----Original Message-----
From: Leekha Shaveta [mailto:shav...@freescale.com]
Sent: Tuesday, June 23, 2015 1:15 PM
To: edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>
Cc: Olivier Martin
Subject: Re: [edk2] PXE with manual TFTP server and filename options
Hi,
Then how tftp and PXE boot flow works in UEFI network stack?
How to provide server ip address and file to get from remote location?
Thanks and Regards,
Shaveta
-----Original Message-----
From: Ye, Ting [mailto:ting...@intel.com]
Sent: Tuesday, June 23, 2015 8:48 AM
To: edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>
Subject: Re: [edk2] PXE with manual TFTP server and filename options
This is not supported by UEFI network stack as I known.
Best Regards,
Ye Ting
-----Original Message-----
From: Radha Mohan [mailto:mohun...@gmail.com]
Sent: Tuesday, June 23, 2015 9:12 AM
To: edk2-devel@lists.sourceforge.net<mailto:edk2-devel@lists.sourceforge.net>
Subject: [edk2] PXE with manual TFTP server and filename options
Hi,
I am looking to do PXE boot with an option to manually enter a TFTP server
ip address and filename from the prompt.
This option can help in having a multiple installation of distros at
different locations.
Is this something that is already available or on the cards ?
regards,
Radha Mohan
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