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    Annotation of /trunk/mkinitrd-magellan/busybox/archival/Config.in

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    Revision 984 - (hide annotations) (download)
    Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
    File size: 9175 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 niro 532 #
    2     # For a description of the syntax of this configuration file,
    3     # see scripts/kbuild/config-language.txt.
    4     #
    5    
    6     menu "Archival Utilities"
    7    
    8 niro 816 config FEATURE_SEAMLESS_LZMA
    9     bool "Make tar, rpm, modprobe etc understand .lzma data"
    10     default n
    11     help
    12     Make tar, rpm, modprobe etc understand .lzma data.
    13    
    14     config FEATURE_SEAMLESS_BZ2
    15     bool "Make tar, rpm, modprobe etc understand .bz2 data"
    16     default n
    17     help
    18     Make tar, rpm, modprobe etc understand .bz2 data.
    19    
    20     config FEATURE_SEAMLESS_GZ
    21     bool "Make tar, rpm, modprobe etc understand .gz data"
    22     default n
    23     help
    24     Make tar, rpm, modprobe etc understand .gz data.
    25    
    26     config FEATURE_SEAMLESS_Z
    27     bool "Make tar and gunzip understand .Z data"
    28     default n
    29     help
    30     Make tar and gunzip understand .Z data.
    31    
    32 niro 532 config AR
    33     bool "ar"
    34     default n
    35     help
    36     ar is an archival utility program used to create, modify, and
    37 niro 816 extract contents from archives. An archive is a single file holding
    38 niro 532 a collection of other files in a structure that makes it possible to
    39     retrieve the original individual files (called archive members).
    40     The original files' contents, mode (permissions), timestamp, owner,
    41     and group are preserved in the archive, and can be restored on
    42     extraction.
    43    
    44     The stored filename is limited to 15 characters. (for more information
    45     see long filename support).
    46     ar has 60 bytes of overheads for every stored file.
    47    
    48     This implementation of ar can extract archives, it cannot create or
    49     modify them.
    50     On an x86 system, the ar applet adds about 1K.
    51    
    52     Unless you have a specific application which requires ar, you should
    53     probably say N here.
    54    
    55     config FEATURE_AR_LONG_FILENAMES
    56 niro 984 bool "Support for long filenames (not needed for debs)"
    57 niro 532 default n
    58     depends on AR
    59     help
    60 niro 984 By default the ar format can only store the first 15 characters
    61     of the filename, this option removes that limitation.
    62 niro 532 It supports the GNU ar long filename method which moves multiple long
    63     filenames into a the data section of a new ar entry.
    64    
    65     config BUNZIP2
    66     bool "bunzip2"
    67     default n
    68     help
    69     bunzip2 is a compression utility using the Burrows-Wheeler block
    70 niro 816 sorting text compression algorithm, and Huffman coding. Compression
    71 niro 532 is generally considerably better than that achieved by more
    72     conventional LZ77/LZ78-based compressors, and approaches the
    73     performance of the PPM family of statistical compressors.
    74    
    75     Unless you have a specific application which requires bunzip2, you
    76     should probably say N here.
    77    
    78 niro 816 config BZIP2
    79     bool "bzip2"
    80     default n
    81     help
    82     bzip2 is a compression utility using the Burrows-Wheeler block
    83     sorting text compression algorithm, and Huffman coding. Compression
    84     is generally considerably better than that achieved by more
    85     conventional LZ77/LZ78-based compressors, and approaches the
    86     performance of the PPM family of statistical compressors.
    87    
    88     Unless you have a specific application which requires bzip2, you
    89     should probably say N here.
    90    
    91 niro 532 config CPIO
    92     bool "cpio"
    93     default n
    94     help
    95 niro 816 cpio is an archival utility program used to create, modify, and
    96     extract contents from archives.
    97 niro 532 cpio has 110 bytes of overheads for every stored file.
    98    
    99     This implementation of cpio can extract cpio archives created in the
    100     "newc" or "crc" format, it cannot create or modify them.
    101    
    102 niro 816 Unless you have a specific application which requires cpio, you
    103     should probably say N here.
    104 niro 532
    105 niro 816 config FEATURE_CPIO_O
    106     bool "Support for archive creation"
    107     default n
    108     depends on CPIO
    109     help
    110     This implementation of cpio can create cpio archives in the "newc"
    111     format only.
    112    
    113 niro 984 config FEATURE_CPIO_P
    114     bool "Support for passthrough mode"
    115     default n
    116     depends on FEATURE_CPIO_O
    117     help
    118     Passthrough mode. Rarely used.
    119    
    120 niro 532 config DPKG
    121     bool "dpkg"
    122     default n
    123 niro 816 select FEATURE_SEAMLESS_GZ
    124 niro 532 help
    125 niro 816 dpkg is a medium-level tool to install, build, remove and manage
    126     Debian packages.
    127 niro 532
    128 niro 816 This implementation of dpkg has a number of limitations,
    129     you should use the official dpkg if possible.
    130 niro 532
    131     config DPKG_DEB
    132     bool "dpkg_deb"
    133     default n
    134 niro 816 select FEATURE_SEAMLESS_GZ
    135 niro 532 help
    136 niro 816 dpkg-deb unpacks and provides information about Debian archives.
    137 niro 532
    138     This implementation of dpkg-deb cannot pack archives.
    139    
    140 niro 816 Unless you have a specific application which requires dpkg-deb,
    141     say N here.
    142 niro 532
    143     config FEATURE_DPKG_DEB_EXTRACT_ONLY
    144 niro 816 bool "Extract only (-x)"
    145 niro 532 default n
    146     depends on DPKG_DEB
    147     help
    148 niro 816 This reduces dpkg-deb to the equivalent of
    149     "ar -p <deb> data.tar.gz | tar -zx". However it saves space as none
    150     of the extra dpkg-deb, ar or tar options are needed, they are linked
    151     to internally.
    152 niro 532
    153     config GUNZIP
    154     bool "gunzip"
    155     default n
    156     help
    157     gunzip is used to decompress archives created by gzip.
    158     You can use the `-t' option to test the integrity of
    159     an archive, without decompressing it.
    160    
    161     config GZIP
    162     bool "gzip"
    163     default n
    164     help
    165     gzip is used to compress files.
    166     It's probably the most widely used UNIX compression program.
    167    
    168 niro 984 config FEATURE_GZIP_LONG_OPTIONS
    169     bool "Enable long options"
    170     default n
    171     depends on GZIP && LONG_OPTS
    172     help
    173     Enable use of long options, increases size by about 106 Bytes
    174    
    175     config LZOP
    176     bool "lzop"
    177     default n
    178     help
    179     Lzop compression/decompresion.
    180    
    181     config LZOP_COMPR_HIGH
    182     bool "lzop complession levels 7,8,9 (not very useful)"
    183     default n
    184     depends on LZOP
    185     help
    186     High levels (7,8,9) of lzop compression. These levels
    187     are actually slower than gzip at equivalent compression ratios
    188     and take up 3.2K of code.
    189    
    190 niro 532 config RPM2CPIO
    191     bool "rpm2cpio"
    192     default n
    193     help
    194     Converts an RPM file into a CPIO archive.
    195    
    196     config RPM
    197     bool "rpm"
    198     default n
    199     help
    200     Mini RPM applet - queries and extracts RPM packages.
    201    
    202     config TAR
    203     bool "tar"
    204     default n
    205     help
    206     tar is an archiving program. It's commonly used with gzip to
    207     create compressed archives. It's probably the most widely used
    208     UNIX archive program.
    209    
    210 niro 816 if TAR
    211    
    212 niro 532 config FEATURE_TAR_CREATE
    213     bool "Enable archive creation"
    214     default y
    215     depends on TAR
    216     help
    217     If you enable this option you'll be able to create
    218     tar archives using the `-c' option.
    219    
    220 niro 816 config FEATURE_TAR_AUTODETECT
    221 niro 984 bool "Autodetect compressed tarballs"
    222 niro 532 default n
    223 niro 816 depends on FEATURE_SEAMLESS_Z || FEATURE_SEAMLESS_GZ || FEATURE_SEAMLESS_BZ2 || FEATURE_SEAMLESS_LZMA
    224 niro 532 help
    225 niro 984 With this option tar can automatically detect compressed
    226 niro 816 tarballs. Currently it works only on files (not pipes etc).
    227 niro 532
    228     config FEATURE_TAR_FROM
    229     bool "Enable -X (exclude from) and -T (include from) options)"
    230     default n
    231     depends on TAR
    232     help
    233     If you enable this option you'll be able to specify
    234     a list of files to include or exclude from an archive.
    235    
    236     config FEATURE_TAR_OLDGNU_COMPATIBILITY
    237 niro 816 bool "Support for old tar header format"
    238 niro 532 default N
    239     depends on TAR
    240     help
    241     This option is required to unpack archives created in
    242     the old GNU format; help to kill this old format by
    243     repacking your ancient archives with the new format.
    244    
    245 niro 816 config FEATURE_TAR_OLDSUN_COMPATIBILITY
    246     bool "Enable untarring of tarballs with checksums produced by buggy Sun tar"
    247     default N
    248     depends on TAR
    249     help
    250     This option is required to unpack archives created by some old
    251     version of Sun's tar (it was calculating checksum using signed
    252     arithmetic). It is said to be fixed in newer Sun tar, but "old"
    253     tarballs still exist.
    254    
    255 niro 532 config FEATURE_TAR_GNU_EXTENSIONS
    256 niro 816 bool "Support for GNU tar extensions (long filenames)"
    257 niro 532 default y
    258     depends on TAR
    259     help
    260     With this option busybox supports GNU long filenames and
    261     linknames.
    262    
    263     config FEATURE_TAR_LONG_OPTIONS
    264     bool "Enable long options"
    265     default n
    266 niro 984 depends on TAR && LONG_OPTS
    267 niro 532 help
    268 niro 816 Enable use of long options, increases size by about 400 Bytes
    269 niro 532
    270 niro 816 config FEATURE_TAR_UNAME_GNAME
    271     bool "Enable use of user and group names"
    272     default n
    273     depends on TAR
    274     help
    275     Enables use of user and group names in tar. This affects contents
    276     listings (-t) and preserving permissions when unpacking (-p).
    277     +200 bytes.
    278    
    279 niro 984 config FEATURE_TAR_NOPRESERVE_TIME
    280     bool "Enable -m (do not preserve time) option"
    281     default n
    282     depends on TAR
    283     help
    284     With this option busybox supports GNU tar -m
    285     (do not preserve time) option.
    286    
    287 niro 816 endif #tar
    288    
    289 niro 532 config UNCOMPRESS
    290     bool "uncompress"
    291     default n
    292     help
    293     uncompress is used to decompress archives created by compress.
    294     Not much used anymore, replaced by gzip/gunzip.
    295    
    296     config UNLZMA
    297     bool "unlzma"
    298     default n
    299     help
    300     unlzma is a compression utility using the Lempel-Ziv-Markov chain
    301 niro 816 compression algorithm, and range coding. Compression
    302 niro 532 is generally considerably better than that achieved by the bzip2
    303     compressors.
    304    
    305     The BusyBox unlzma applet is limited to de-compression only.
    306     On an x86 system, this applet adds about 4K.
    307    
    308     Unless you have a specific application which requires unlzma, you
    309     should probably say N here.
    310    
    311     config FEATURE_LZMA_FAST
    312 niro 816 bool "Optimize unlzma for speed"
    313 niro 532 default n
    314     depends on UNLZMA
    315     help
    316 niro 984 This option reduces decompression time by about 25% at the cost of
    317     a 1K bigger binary.
    318 niro 532
    319     config UNZIP
    320     bool "unzip"
    321     default n
    322     help
    323     unzip will list or extract files from a ZIP archive,
    324     commonly found on DOS/WIN systems. The default behavior
    325     (with no options) is to extract the archive into the
    326     current directory. Use the `-d' option to extract to a
    327     directory of your choice.
    328    
    329     endmenu