[Bug 637861] Re: package grub-pc 1.98 20100804-4ubuntu6 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

[Marcus Tomlinson]

This release of Ubuntu is no longer receiving maintenance updates. If
this is still an issue on a maintained version of Ubuntu please let us
know.

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

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Title:
  package grub-pc 1.98 20100804-4ubuntu6 failed to install/upgrade:
  ErrorMessage: subprocess installed post-installation script returned
  error exit status 1

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: grub2

  I'm using Ubuntu 10.10 beta. Since yesterday, grub-pc update ends with
  this error :

  "Generating grub.cfg ...
  /usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/mapper/isw_jaigchfec_VOL15.  Check your device.map."

  I'm using my laptops built-in Intel's fakeRaid with mirrored two sata drives.
  my GRUB2 BOOT partition is on RAID too. 
  I'm not so experienced with Linux, just beginning to learn this year. However, I'm an experienced IT specialist for 10+ years, so I can follow any command you provide with.

  Here's the related partitions.
  /dev/mapper/isw_jaigchfec_VOL13  is BOOT
  /dev/mapper/isw_jaigchfec_VOL15  is Ubuntu

  Although Ubuntu boots and runs normally, grub-pc update fails.

  ProblemType: Package
  DistroRelease: Ubuntu 10.10
  Package: grub-pc 1.98+20100804-4ubuntu6
  ProcVersionSignature: Ubuntu 2.6.35-20.29-generic 2.6.35.4
  Uname: Linux 2.6.35-20-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Tue Sep 14 08:30:14 2010
  ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  SourcePackage: grub2
  Title: package grub-pc 1.98+20100804-4ubuntu6 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1

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