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Re: TFPT boot without PXE

From: Andrei Borzenkov
Subject: Re: TFPT boot without PXE
Date: Sun, 26 Jul 2015 08:07:22 +0300

В Sun, 26 Jul 2015 00:14:48 +0200
Christian Meyer <address@hidden> пишет:

> Hello there,
> is there a way to locally start grub (via hd, CD or USB) and let it boot
> a GNU/Linux system over the network only using TFTP (with given
> servername or IP adress) but without using PXE?

GRUB is using networking facilities provided by firmware so it depends
on platform. On UEFI networking is always available so it is possible.
On legacy BIOS (i.e. i386-pc) PXE stack is present only when booted
over PXE, so it is not possible. 

> Background: I'm running a windows active directory with an active PXE
> booting environment to deploy windows on the network. For security
> reasons I'm not allowed to modify the server or the boot config.
> So I installed a Debian TFTP and NFS server on a seperate machine using
> the windows AD as the DHCP and DNS server. Windows server "knows" this
> computer but of course does not know it as a DHCP "next-server".
> I now want to configure local grub not to boot Windows PXE but the Linux
> kernel and initrd (and later NFSROOT) from my Linux server using its DNS
> name or IP adress.
> Christian
> _______________________________________________
> Help-grub mailing list
> address@hidden

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