[Bug 1048363] Re: Ubiquity Installer Crashes on Mac Book Air 5, 2 with 12.10 beta 1 USB

[nantes]

Booted from USB thumb drive, via ReFit bootloader inside of Mac OS X
10.8.

Of note, had to kill 'grub-mount' to progress past Timezone selection
step (accompanies syslog entries at around 19:34 in the attached
syslog):

root     18114  0.0  0.0  28536  1272 ?        Ss   14:33   0:00 grub-
mount /dev/sdb1 /var/lib/os-prober/mount

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https://bugs.launchpad.net/bugs/1048363

Title:
  Ubiquity Installer Crashes on Mac Book Air 5,2 with 12.10 beta 1 USB

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

Bug description:
  After majority of installation is finished, fails to install grub on
  'target'.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubiquity 2.11.30 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
  Uname: Linux 3.5.0-13-generic x86_64
  ApportVersion: 2.5.1-0ubuntu4
  Architecture: amd64
  CasperVersion: 1.321
  Date: Sun Sep  9 14:42:16 2012
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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