[Bug 995229] [NEW] grub-installer refuses installation to media that previously held a hybrid image

[LeoRochael]

Public bug reported:

While installing Precise to a USB media that previously held an
isohybrid image, installation fails with error message:

/usr/sbin/grub-setup: error: hd2 appears to contain a iso9660 filesystem
which isn't known to reserve space for DOS-style boot.  Installing GRUB
there could result in FILESYSTEM DESTRUCTION if valuable data is
overwritten by grub-setup (--skip-fs-probe disables this check, use at
your own risk).

The error I got is exactly as reported on:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655532

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: ubiquity 2.10.16
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
CasperVersion: 1.315
Date: Sat May  5 21:19:16 2012
InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: grub-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 precise ubiquity-2.10.16

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https://bugs.launchpad.net/bugs/995229

Title:
  grub-installer refuses installation to media that previously held a
  hybrid image

Status in “grub-installer” package in Ubuntu:
  New

Bug description:
  While installing Precise to a USB media that previously held an
  isohybrid image, installation fails with error message:

  /usr/sbin/grub-setup: error: hd2 appears to contain a iso9660
  filesystem which isn't known to reserve space for DOS-style boot.
  Installing GRUB there could result in FILESYSTEM DESTRUCTION if
  valuable data is overwritten by grub-setup (--skip-fs-probe disables
  this check, use at your own risk).

  The error I got is exactly as reported on:

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655532

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ubiquity 2.10.16
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
  Uname: Linux 3.2.0-23-generic-pae i686
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: i386
  CasperVersion: 1.315
  Date: Sat May  5 21:19:16 2012
  InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   LANG=pt_BR.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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