[Bug 990397] Re: Multiples packages fails to install when using NFS root

[mythsmith]

I had exactly the same problem.
The only way managed to get the system past kernel update is to manually edit this file:
/etc/kernel/postinst.d/zz-update-grub 
And modify the start of the script so it immediately exit with successful state=0:

#! /bin/sh
exit 0
[...] etc...

This will allow the installation of the new kernel to proceed. You will
have to edit that file again each time you want to upgrade the kernel.

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https://bugs.launchpad.net/bugs/990397

Title:
  Multiples packages fails to install when using NFS root

Status in “friendly-recovery” package in Ubuntu:
  New

Bug description:
  I have an nfs root on one of my boxes - I made it to upgrade for ubuntu version 12.
  I have not installed grub on the box but seems the installation requires it (and some other packages); thus upgrade installed but failed to configure these packages:

   friendly-recovery
   linux-image-3.2.0-24-generic-pae
   linux-image-generic-pae
   grub-pc

  After upgrade, I removed  friendly-recovery, grub-pc-bin,
  grub2-common,  grub-common and grub-pc, which enabled the kernel
  package(s) to be configured correctly.

  Also; I got these warnings while configuration was being made:

  update-initramfs: Generating /boot/initrd.img-3.2.0-24-generic-pae
  cryptsetup: WARNING: failed to detect canonical device of /dev/nfs
  cryptsetup: WARNING: could not determine root device from /etc/fstab

  ProblemType: Package
  DistroRelease: Ubuntu 12.04
  Package: friendly-recovery 0.2.25
  ProcVersionSignature: Ubuntu 3.0.0-19.32-generic-pae 3.0.27
  Uname: Linux 3.0.0-19-generic-pae i686
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: i386
  Date: Sat Apr 28 12:35:08 2012
  ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationMedia: Ubuntu-Server 10.10 "Maverick Meerkat" - Release i386 (20101007)
  PackageArchitecture: all
  SourcePackage: friendly-recovery
  Title: package friendly-recovery 0.2.25 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: Upgraded to precise on 2012-04-28 (0 days ago)

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