patch-2.1.60 linux/Documentation/filesystems/vfat.txt
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- Lines: 357
- Date:
Thu Oct 23 14:00:14 1997
- Orig file:
v2.1.59/linux/Documentation/filesystems/vfat.txt
- Orig date:
Thu Apr 11 23:49:29 1996
diff -u --recursive --new-file v2.1.59/linux/Documentation/filesystems/vfat.txt linux/Documentation/filesystems/vfat.txt
@@ -8,7 +8,20 @@
VFAT MOUNT OPTIONS
----------------------------------------------------------------------
-uni_xlate -- Translate unhandled Unicode characters to special
+codepage=### -- Sets the codepage for converting to shortname characters
+ on FAT and VFAT filesystems. By default, codepage 437
+ is used. This is the default for the U.S. and some
+ European countries.
+iocharset=name -- Character set to use for converting between 8 bit characters
+ and 16 bit Unicode characters. Long filenames are stored on
+ disk in Unicode format, but Unix for the most part doesn't
+ know how to deal with Unicode. There is also an option of
+ doing UTF8 translations with the utf8 option.
+utf8=<bool> -- UTF8 is the filesystem safe version of Unicode that
+ is used by the console. It can be be enabled for the
+ filesystem with this option. If 'uni_xlate' gets set,
+ UTF8 gets disabled.
+uni_xlate=<bool> -- Translate unhandled Unicode characters to special
escaped sequences. This would let you backup and
restore filenames that are created with any Unicode
characters. Until Linux supports Unicode for real,
@@ -18,11 +31,11 @@
illegal on the vfat filesystem. The escape sequence
that gets used, where u is the unicode character, is:
':', (u & 0x3f), ((u>>6) & 0x3f), (u>>12),
-posix -- Allow names of same letters, different case such as
+posix=<bool> -- Allow names of same letters, different case such as
'LongFileName' and 'longfilename' to coexist. This has some
problems currently because 8.3 conflicts are not handled
correctly for Posix filesystem compliance.
-nonumtail -- When creating 8.3 aliases, normally the alias will
+nonumtail=<bool> -- When creating 8.3 aliases, normally the alias will
end in '~1' or tilde followed by some number. If this
option is set, then if the filename is
"longfilename.txt" and "longfile.txt" does not
@@ -31,19 +44,19 @@
quiet -- Stops printing certain warning messages.
+<bool>: 0,1,yes,no,true,false
TODO
----------------------------------------------------------------------
+* When only shortnames exist, translate them from the codepage character
+ set to the iocharset. Currently, translations only occur when longnames
+ exist. To translate, first convert from codepage to Unicode and then
+ to the output character set.
+
* Need to get rid of the raw scanning stuff. Instead, always use
a get next directory entry approach. The only thing left that uses
raw scanning is the directory renaming code.
-* Need to add dcache_lookup code msdos filesystem. This means the
- directories need to be versioned like the vfat filesystem.
-
-* Add support for different codepages. Right now, we only support
- the a single English codepage.
-
* Fix the Posix filesystem support to work in 8.3 space. This involves
renaming aliases if a conflict occurs between a new filename and
an old alias. This is quite a mess.
@@ -55,11 +68,12 @@
* When a volume name is the same as a directory name in the root
directory of the filesystem, the directory name sometimes shows
up empty an empty file.
+* autoconv option does not work correctly.
BUG REPORTS
----------------------------------------------------------------------
If you have trouble with the VFAT filesystem, mail bug reports to
-chaffee@bugs-bunny.cs.berkeley.edu. Please specify the filename
+chaffee@bmrc.cs.berkeley.edu. Please specify the filename
and the operation that gave you trouble.
TEST SUITE
@@ -67,7 +81,7 @@
If you plan to make any modifications to the vfat filesystem, please
get the test suite that comes with the vfat distribution at
- http://www-plateau.cs.berkeley.edu/people/chaffee/vfat.html
+ http://bmrc.berkeley.edu/people/chaffee/vfat.html
This tests quite a few parts of the vfat filesystem and additional
tests for new features or untested features would be appreciated.
@@ -194,271 +208,3 @@
Finally, note that the extended name is stored in Unicode. Each Unicode
character takes two bytes.
-
-
-NOTES ON UNICODE TRANSLATION IN VFAT FILESYSTEM
-----------------------------------------------------------------------
-(Information provided by Steve Searle <steve@mgu.bath.ac.uk>)
-
-Char used as Char(s) used Char(s) used in Entries which have
-filename in shortname longname slot been corrected
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-0x81 (129) 0x9A 0xFC
-0x82 (130) 0x90 0xE9 E
-0x83 (131) 0xB6 0xE2 E
-0x84 (132) 0x8E 0xE4 E
-0x85 (133) 0xB7 0xE0 E
-0x86 (134) 0x8F 0xE5 E
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-0xFF (255) 0xFF 0xA0
-
-
-Page 0
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-
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