[Bug 944347] Re: linux and initrd load very slowly on UEFI system

Manoj Iyer 944347 at bugs.launchpad.net
Thu Mar 1 22:55:20 UTC 2012


The patch kamal posted greatly improves boot speed on UEFI systems, mine
went from "for ever" to under 5secs. Could we have this patch in 12.04
if it does not hurt other systems on legacy bios?

** Changed in: grub2 (Ubuntu)
   Importance: Undecided => High

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

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Title:
  linux and initrd load very slowly on UEFI system

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  On a Intel Tunnel Mountain system, grub2 loads from disk very slowly
  when booting with UEFI:  about 53 seconds to execute a pair of "linux"
  and "initrd" commands.

  Expected behavior:
      Load time for linux and initrd should be on order of 1 second.

  Problem observed with:
      grub2 (oneiric) 1.99-12ubuntu5
      grub2 (precise) 1.99-14ubuntu2
      Intel Tunnel Mountain UEFI BIOS version SDV.TM.B8 or SDV.TM.B9

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