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

[Launchpad Bug Tracker]

This bug was fixed in the package grub2-signed - 1.34.8

---------------
grub2-signed (1.34.8) trusty; urgency=medium

  * Rebuild against grub-efi-amd64 2.02~beta2-9ubuntu1.7 (LP: #1521612,
    LP: #1274320).

 -- dann frazier <dannf at ubuntu.com>  Wed, 16 Dec 2015 14:23:00 -0700

** Changed in: grub2-signed (Ubuntu Trusty)
       Status: Fix Committed => 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
Status in grub2-signed package in Ubuntu:
  Fix Released
Status in grub2 source package in Trusty:
  Fix Released
Status in grub2-signed source package in Trusty:
  Fix Released
Status in grub2 source package in Vivid:
  Fix Committed
Status in grub2-signed source package in Vivid:
  Fix Committed
Status in grub2 source package in Wily:
  Fix Committed
Status in grub2-signed source package in Wily:
  Fix Committed
Status in grub2 source package in Xenial:
  Fix Released
Status in grub2-signed source package in Xenial:
  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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