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geom_uzip (4)
  • >> geom_uzip (4) ( FreeBSD man: Специальные файлы /dev/* )

  • BSD mandoc
     

    NAME

    geom_uzip
    
     - GEOM based compressed disk images
    
     
    

    SYNOPSIS

    To compile this driver into the kernel, place the following line in your kernel configuration file:
    options GEOM_UZIP

    Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:

    geom_uzip_load="YES"
    
     

    DESCRIPTION

    The framework provides support for compressed read only disk images. This allows significant storage savings at the expense of a little CPU time on each read. Data written in the GEOM label area allows to detect compressed images which have been created with mkuzip(8) and presented to the kernel as a logical disk device via md(4). creates a unique md#.uzip device for each image.

    The device is subsequently used by the Fx kernel to access the disk images. The driver does not allow write operations to the underlying disk image. To check which md(4) devices match a given device:

    # geom uzip list
    Geom name: md1.uzip
    Providers:
    1. Name: md1.uzip
       Mediasize: 22003712 (21M)
       Sectorsize: 512
       Mode: r1w0e1
    Consumers:
    1. Name: md1
       Mediasize: 9563648 (9.1M)
       Sectorsize: 512
       Mode: r1w0e1
    

     

    SEE ALSO

    GEOM(4), md(4), geom(8), mkuzip(8)  

    AUTHORS

    An -nosplit The driver was written by An Max Khon Aq [email protected] . This manual page was written by An Ceri Davies Aq [email protected] .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    SEE ALSO
    AUTHORS


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