[Bug 810883] Re: [Natty] Generating grub.cfg takes way too long

[moueza]

Exactly same problem for me under ubuntu 13.04, but time can take over 10 hours.
And it's  not a computation problem, because even renice -20 on grub commands changes nothing

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Title:
  [Natty] Generating grub.cfg takes way too long

Status in “grub2” package in Ubuntu:
  New

Bug description:
  Ever since updating to 11.04 (Natty) update-grub takes 10-12 minutes to generate grub.cfg
  In fact, I had aborted my first attempt to upgrade the system thinking that it had failed at that point.

  To date, I am using 64-bit kernel 2.6.38-8-generic and grub-probe
  version 1.99~rc1-13ubuntu3 and I can see exact the same problem on
  each kernel upgrade. The reason is a mystery to me as the upgrade log
  comes clean like this,

  run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
  run-parts: executing /etc/kernel/postinst.d/nvidia-common 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
  run-parts: executing /etc/kernel/postinst.d/pm-utils 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
  run-parts: executing /etc/kernel/postinst.d/update-notifier 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
  run-parts: executing /etc/kernel/postinst.d/zz-update-grub 2.6.38-10-generic /boot/vmlinuz-2.6.38-10-generic
  Generating grub.cfg ...
  Found linux image: /boot/vmlinuz-2.6.38-10-generic
  Found initrd image: /boot/initrd.img-2.6.38-10-generic
  Found linux image: /boot/vmlinuz-2.6.38-8-generic
  Found initrd image: /boot/initrd.img-2.6.38-8-generic
  Found memtest86+ image: /memtest86+.bin
  done

  It's just a long wait (10-12 minutes) after "Generating grub.cfg ..."
  message, as if update-grub would have froze.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Fri Jul 15 09:57:05 2011
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  ProcEnviron:
   LANGUAGE=ru:en
   LANG=ru_RU.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: Upgraded to natty on 2011-04-15 (90 days ago)

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