faq.txt

嵌入式系统设计与实验教材二源码linux内核移植与编译

  Frequently Asked Questions about the HFS filesystem for
  Linux
  Paul H. Hargrove, [e-mail]
  version 1.0.3, 27 Apr 1997

  This document provides answers to some of the most frequently asked
  questions about the HFS filesystem for Linux.  It is currently pretty
  rough and totally unorganized.  Corrections, additions and clarifica-
  tions are appreciated.  The most current version of this document is
  kept on The HFS for Linux Page <http://www-sccm.Stanford.EDU/~har-
  grove/HFS/>.
  ______________________________________________________________________

  Table of Contents:

  1.      What is this FAQ about?

  2.      What is HFS?

  3.      How I mount AppleShare volumes?

  4.      What is the current version of the HFS filesystem.

  5.      How stable is the current version?

  6.      Is there a mailing list for discussion of the HFS filesystem?

  7.      What version of Linux do I need to be running?

  8.      Will it run on my (your processor type here)?

  9.      Will it run under (your non-Linux operating system here)?

  10.     Why can I mount some HFS CDROMs but not others?

  11.     What does ``only 1024-char blocks implemented (512)'' mean?

  12.     Why do I get a message about a bad or unknown partition table?

  13.     Can I mount multiple HFS partitions from the same Macintosh
  disk?

  14.     In what ways can I write to HFS filesystems?

  15.     Does the HFS filesystem work with 400 kB or 800 kB Macintosh
  diskettes?

  16.     How can I format an HFS filesystem?

  17.     How can I fsck an HFS filesystem?

  18.     Why do I get ``error -50'' messages from my Mac when using
  netatalk?

  19.     Why does my Macintosh show generic application and document
  icons?

  20.     How owns all the copyrights and trademarks? ;-)

  20.1.   This Document

  20.2.   The Software

  20.3.   Trademarks
  ______________________________________________________________________

  11..  WWhhaatt iiss tthhiiss FFAAQQ aabboouutt??

  This FAQ is about the HFS filesystem for Linux, which is available in
  two forms.  The stand-alone version (called hfs_fs) is a Linux kernel
  loadable module implementing the Macintosh HFS filesystem.  The HFS
  filesystem is also included in some distributions of the Linux kernel
  source (in the directory linux/fs/hfs).  This version can be compiled
  as a loadable module or compiled into the kernel.

  Either version allows a machine running Linux to read and write disks
  from a Macintosh (almost) as though they were native Linux disks.

  22..  WWhhaatt iiss HHFFSS??

  HFS stands for ``Hierarchical File System'' and is the filesystem used
  by the Mac Plus and all later Macintosh models.  Earlier Macintosh
  models used MFS (``Macintosh File System''), which is not supported.

  33..  HHooww II mmoouunntt AApppplleeSShhaarree vvoolluummeess??

  The HFS filesystem is for mounting local filesystems only.  There is
  an experimental afpfs by Ben Hekster [e-mail] available from
  http://www.odyssey.co.il/~heksterb/Software/afpfs/.

  44..  WWhhaatt iiss tthhee ccuurrrreenntt vveerrssiioonn ooff tthhee HHFFSS ffiilleessyysstteemm..

  As of version 1.0.3 of this FAQ, version 0.95 is the most recent.  You
  can always find the most recent version on The HFS for Linux Page
  <http://www-sccm.Stanford.EDU/~hargrove/HFS/>.  Announcements of new
  versions are made to the comp.os.linux.announce newsgroup.

  55..  HHooww ssttaabbllee iiss tthhee ccuurrrreenntt vveerrssiioonn??

  Version 0.95 is considered to be ``beta'' software, so I recommend
  making backups of anything important before you start playing.  It is
  relatively free of bugs due to lots of testing of the previous
  releases.

  After a suitable period without new bugs the I will consider the
  software to be ``stable'' and the version number will jump to 1.0.

  66..  IIss tthheerree aa mmaaiilliinngg lliisstt ffoorr ddiissccuussssiioonn ooff tthhee HHFFSS ffiilleessyysstteemm??

  There is no mailing list devoted exclusively to the HFS filesystem.
  However, announcements of new versions are posted to the ``linux-
  atalk'' and ``hfs-interest'' lists.  I will see bug reports sent to
  those lists but e-mail is more reliable ([e-mail]).

  To subscribe to hfs-interest send e-mail with a body of ``subscribe
  hfs-interest (your e-mail address)'' to [e-mail].

  To subscribe to linux-atalk send e-mail with a body of ``SUBSCRIBE
  LINUX-ATALK (Your full name)'' to [e-mail].

  77..  WWhhaatt vveerrssiioonn ooff LLiinnuuxx ddoo II nneeeedd ttoo bbee rruunnnniinngg??

  To compile and use the stand-alone distribution of the HFS filesystem
  you will need Linux kernel version 2.0.1 or newer compiled with
  modules enabled (CONFIG_MODULES).  To compile you will need the kernel
  headers which match the kernel you are running.  This is covered in
  more detail in the installation instructions in INSTALL.txt.

  If your kernel came with HFS in the kernel source tree then HFS should
  work with your Linux version.  There may be small problems with a few
  of the development kernel releases.  For these releases check the HFS
  for Linux Page <http://www-sccm.Stanford.EDU/~hargrove/HFS/> for
  patches.

  88..  WWiillll iitt rruunn oonn mmyy ((yyoouurr pprroocceessssoorr ttyyppee hheerree))??

  The code is carefully written to be independent of your processor's
  word size and byte-order, so if your machine runs Linux it can run the
  HFS filesystem.  However some younger ports don't yet have support for
  loadable modules.

  Note that HFS is tested most extensively on Intel platforms.  So there
  could be subtle compilation problems on other platforms.  If you
  encounter any that are not addressed by the documentation then please
  let me know.

  99..  WWiillll iitt rruunn uunnddeerr ((yyoouurr nnoonn--LLiinnuuxx ooppeerraattiinngg ssyysstteemm hheerree))??

  No.  There is a port in progress to NetBSD.  I know of no other active
  porting attempts.  If you are interested in porting the HFS filesystem
  to another Unix-like operating system, I am interested in providing
  what guidance I can.

  1100..  WWhhyy ccaann II mmoouunntt ssoommee HHFFSS CCDDRROOMMss bbuutt nnoott ootthheerrss??

  In the past there was a known incompatibility with some ``hybrid''
  CDROMs that appear as HFS disks on Macs and as ISO9660 disks on other
  systems.  I think I have fixed the problem.  So, if you encounter this
  particular problem or have problems with specific non-hybrid CDROMs
  please e-mail me with the title and manufacturer of the CD.

  1111..  WWhhaatt ddooeess ````oonnllyy 11002244--cchhaarr bblloocckkss iimmpplleemmeenntteedd ((551122))'''' mmeeaann??

  This message comes from the kernel and indicates that an attempt was
  made to read a 512-byte block from a device that doesn't support
  512-byte blocks.  The HFS filesystem only works with 512-byte blocks,
  and therefore doesn't function with these devices.  Eventually it may
  be able to use 1024-byte (or even 2048-byte) blocks when necessary.
  Ideally the device driver should be enhanced to support 512-byte
  blocks so that the various filesystems which need 512-byte blocks
  don't each need to work around it.