[Bug 733836] Re: "Error: file not found" when booting, then boots up anyway

[Michael Pentecost]

I just did the upgrade from 12.04 --> 12.10 --> 13.04 and got this
issue.

I fixed it by the suggestion here, to run grub-install.
For my system, I did:

> df

I found that my root partition was on sda1 - and as I only have one HDD,
I know it's sda now.

> sudo grub-install /dev/sda 
> sudo update-grub
> sudo reboot

More info on installing/reinstalling grub:
https://help.ubuntu.com/community/Grub2/Installing

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https://bugs.launchpad.net/bugs/733836

Title:
  "Error: file not found" when booting, then boots up anyway

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub2

  After dist-upgrade to development natty I get an error right after
  choosing the kernel in Grub2 menu.

  Error: file not found

  It first seems as if it will not be able to boot, but after a short
  time (>1min) it continues to boot anyway.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 2.6.38-6.34-generic-pae 2.6.38-rc7
  Uname: Linux 2.6.38-6-generic-pae i686
  Architecture: i386
  Date: Sat Mar 12 14:39:40 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: Upgraded to natty on 2011-03-12 (0 days ago)

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