[Bug 734883] Re: mounting HFS+ volumes fails on large sector devices

[Rod Scottkey]

This patch worked for me.  I was trying to mount an iPod freshly
restored on a Mac, and I was getting the same "bad superblock" errors
people had mentioned above.  After installing Seth's patch in #42 the
iPod was mountable.  Out of curiosity I reverted back to the latest
kernel and the errors came back.  Thanks for your hard work!

Other notes for those who try this:

- After restoring the iPod, you need to type the following at a Mac
terminal or the iPod will be read-only:

     diskutil disableJournal /Volumes/<device name>

- Banshee 2.0.1 now gives me errors when trying to write to this iPod,
but Rhythmbox 0.13 works fine.  Need to investigate this further.

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https://bugs.launchpad.net/bugs/734883

Title:
  mounting HFS+ volumes fails on large sector devices

Status in “linux” package in Ubuntu:
  In Progress
Status in “util-linux” package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: util-linux

  Natty Alpha 3

  WIth Natty I only tried now to mount my iPod, but it doesn't work. It
  used to work great under Maverick, though.

  Here's what I get from dmesg:

  [  452.340069] hfs: unable to find HFS+ superblock
  [  452.410078] sd 7:0:0:0: [sdb] Bad block number requested
  [  452.410110] hfs: unable to find HFS+ superblock

  And this is the error message from the GUI dialog:

  Unable to mount 8.1 GB Filesystem

  Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sdb3,
         missing codepage or helper program, or other error
         In some cases useful info is found in syslog - try
         dmesg | tail  or so

  mount:
    Installed: 2.17.2-9.1ubuntu2
    Candidate: 2.17.2-9.1ubuntu2
    Version table:
   *** 2.17.2-9.1ubuntu2 0
          500 http://us.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: mount 2.17.2-9.1ubuntu2
  ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
  Uname: Linux 2.6.38-6-generic x86_64
  NonfreeKernelModules: nvidia wl
  Architecture: amd64
  Date: Mon Mar 14 10:13:28 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64+mac (20110210)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: util-linux
  UpgradeStatus: Upgraded to natty on 2011-03-08 (5 days ago)

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