[Bug 856826] Re: 'guided resize' partioning leaves Mac unbootable

[Launchpad Bug Tracker]

This bug was fixed in the package parted - 2.3-8ubuntu4

---------------
parted (2.3-8ubuntu4) precise; urgency=low

  * At least some Intel Macs get rather upset if we revert to a protective
    MBR, so try harder to avoid this and to do a better job of writing a
    hybrid MBR:
    - Write a type code of 0x83 for more filesystems, and 0xda for
      non-filesystem partitions.
    - Do not rely on filesystem probing to recognise EFI System Partitions.
    - Write a protective partition starting at LBA 1 if we find an EFI
      System Partition or BIOS Boot Partition in the first position, even if
      it does not really begin at LBA 1 (LP: #856826).
    - Ensure that protective partitions corresponding to an ESP or BBP
      always have starting cylinder 0, head 0, sector 1.
    - Don't revert to a protective MBR just because the first GPT partition
      wasn't recognised as anything in particular.
    - Add tests for hybrid MBR syncing.
 -- Colin Watson <cjwatson at ubuntu.com>   Thu, 08 Mar 2012 15:44:55 +0000

** Changed in: parted (Ubuntu Precise)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/856826

Title:
  'guided resize' partioning leaves Mac unbootable

Status in Release Notes for Ubuntu:
  Fix Released
Status in “apport” package in Ubuntu:
  Fix Released
Status in “parted” package in Ubuntu:
  Fix Released
Status in “apport” source package in Precise:
  Fix Released
Status in “parted” source package in Precise:
  Fix Released

Bug description:
  After installing with ubuntu-oneiric-alternate-amd64+mac.iso (ISO from
  2011-09-21) this MacBookPro6,2 is not bootable. I used the 'guided
  resize' partitioning option to split an existing ext4 partition to
  make space. The original system was working fine and the resulting
  partition table, after the install, looks reasonable (two ext4
  partitions, two swap parititons, and a bios_grub partition).

  This would appear to be a regression. If I remember rightly, this
  worked correctly in Oneiric once before.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: debian-installer 20101020ubuntu65
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.284
  Date: Thu Sep 22 21:36:04 2011
  Dependencies:
   
  DeviceMapperTables:
   Error: command ['dmsetup', 'table'] failed with exit code 1: /dev/mapper/control: open failed: Permission denied
   Failure to communicate with kernel device-mapper driver.
   Command failed
  DmraidDevices: Error: command ['dmraid', '-r'] failed with exit code 1: ERROR: you must be root
  DmraidSets: Error: command ['dmraid', '-s'] failed with exit code 1: ERROR: you must be root
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110921.2)
  MachineType: Apple Inc. MacBookPro6,2
  MemoryUsage:
   total       used       free     shared    buffers     cached
   Mem:       3860344    1354748    2505596          0     130964     571360
   -/+ buffers/cache:     652424    3207920
   Swap:      8058476          0    8058476
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/26/10
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP61.88Z.0057.B0C.1007261552
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-F22586C8
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro6,2
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F22586C8
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP61.88Z.0057.B0C.1007261552:bd07/26/10:svnAppleInc.:pnMacBookPro6,2:pvr1.0:rvnAppleInc.:rnMac-F22586C8:rvrMacBookPro6,2:cvnAppleInc.:ct10:cvrMac-F22586C8:
  dmi.product.name: MacBookPro6,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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