[Bug 1521612] Re: Continued TFTP timeouts when PXE booting via grub

[Launchpad Bug Tracker]

This bug was fixed in the package grub2 - 2.02~beta2-32ubuntu1

---------------
grub2 (2.02~beta2-32ubuntu1) xenial; urgency=medium

  * Cherry-picks to better handle TFTP timeouts on some arches: (LP: #1521612)
    - (7b386b7) efidisk: move device path helpers in core for efinet
    - (c52ae40) efinet: skip virtual IP devices when enumerating cards
    - (f348aee) efinet: enable hardware filters when opening interface

 -- Mathieu Trudel-Lapierre <mathieu-tl at ubuntu.com>  Thu, 03 Dec 2015
15:03:46 -0500

** Changed in: grub2 (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1521612

Title:
  Continued TFTP timeouts when PXE booting via grub

Status in grub2 package in Ubuntu:
  Fix Released

Bug description:
  [Impact]
  While the Grub2 patches described in LP#1508893 reduce the TFTP time-out, HP ProLiant m400 servers when booting via UEFI, may still experience TFTP timeouts.

  [Test Case]
  PXE boot a UEFI-based system (d-i or MAAS) and monitor the time it takes for GRUB to download the kernel/initrd. tcpdump will show TFTP timeouts and packet retries, and it can take on the order of minutes to begin running the kernel.

  [Regression Risk]
  The fix is restricted to UEFI-based systems.

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