URL:
<http://savannah.gnu.org/bugs/?35193>
Summary: Grub2 doesn't use info in boot server packets
Project: GNU GRUB
Submitted by: twhitehead
Submitted on: Thu 29 Dec 2011 11:15:45 PM GMT
Category: Network
Severity: Major
Priority: 5 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release:
Release: other
Reproducibility: Every Time
Planned Release: None
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Details:
Currently grub2 only processes the DHCP ACK package.
When PXE booting this can result in missed PXE options (as the boot server can
supplement them) and grub not getting the IP address for the TFTP server that
served the core image (as this information may not even be in the DHCP
package).
I've put together a patch that adds parsing the boot server packet as well to
make sure all the required information gets extracted. It gives precedence to
DHCP PXE options (as required by the PXE spec) and boot server IP
addresses/file names.
An example of a situation that doesn't work before this patch is running
dnsmasq on a local 192.168.1.x network in proxy mode along side a regular DHCP
server that doesn't provide booting services. The dnsmasq parameters are
enable-tftp
tftp-root=/srv/tftp
pxe-service=x86PC, "GRUB", boot/grub/i386-pc/core
dhcp-range=192.168.1.0,proxy,255.255.255.0
Another example would be a remote TFTP server setup, such as
pxe-service=x86PC, "GRUB", boot/grub/i386-pc/core, 192.168.1.1
Cheers! -Tyson
PS: This should address the wrong server issue (DHCP vs boot) in 33348 but
doesn't do anything to add http support.
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: Thu 29 Dec 2011 11:15:45 PM GMT Name:
0001-Include-PXE-info-from-boot-server-too-instead-of-jus.patch Size: 3kB
By: twhitehead
<http://savannah.gnu.org/bugs/download.php?file_id=24711>
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