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mkinitrd (8)
  • >> mkinitrd (8) ( Linux man: Команды системного администрирования )
  •  

    NAME

    mkinitrd - creates initial ramdisk images for preloading modules
     
    

    SYNOPSIS

    mkinitrd [--version] [-v] [-f]
             [--preload=module] [--omit-scsi-modules] 
             [--omit-raid-modules] [--omit-lvm-modules] 
             [--with=module] [--image-version]
             [--fstab=fstab] [--nocompress]
             [--builtin=module] [--nopivot]
             image kernel-version

     

    DESCRIPTION

    mkinitrd creates an initial image used by the kernel for preloading the block device modules (such as IDE, SCSI or RAID) which are needed to access the root filesystem. mkinitrd automatically loads filesystem modules (such as ext3 and jbd), IDE modules, all scsi_hostadapter entries in /etc/modprobe.conf, and raid modules if the system's root partition is on raid, which makes it simple to build and use kernels using modular device drivers.

    Any module options specified in /etc/modprobe.conf are passed to the modules as they are loaded by the initial ramdisk.

    The root filesystem used by the kernel is specified in the boot configuration file, as always. The traditional root=/dev/hda1 style device specification is allowed. If a label is used, as in root=LABEL=rootPart the initrd will search all available devices for an ext2 or ext3 filesystem with the appropriate label, and mount that device as the root filesystem.

     

    OPTIONS

    --builtin=module
    Act as if module is built into the kernel being used. mkinitrd will not look for this module, and will not emit an error if it does not exist. This option may be used multiple times.

    -f
    Allows mkinitrd to overwrite an existing image file.

    --fstab=fstab
    Use fstab to automatically determine what type of filesystem the root device is on. Normally, /etc/fstab is used.

    --image-version
    The kernel version number is appended to the initrd image path before the image is created.

    --nocompress
    Normally the created initrd image is compressed with gzip. If this option is specified, the compression is skipped.

    --nopivot
    Do not use the pivot_root system call as part of the initrd. This lets mkinitrd build proper images for Linux 2.2 kernels at the expense of some features. In particular, some filesystems (such as ext3) will not work properly and filesystem options will not be used to mount root. This option is not recommended, and will be removed in future versions.

    --omit-lvm-modules
    Do not load any lvm modules, even if /etc/fstab expects them.

    --omit-raid-modules
    Do not load any raid modules, even if /etc/fstab and /etc/raidtab expect them.

    --omit-scsi-modules
    Do not load any scsi modules, including 'scsi_mod' and 'sd_mod' modules, even if they are present.

    --preload=module
    Load the module module in the initial ramdisk image. The module gets loaded before any SCSI modules which are specified in /etc/modprobe.conf. This option may be used as many times as necessary.

    -v
    Prints out verbose information while creating the image (normally the mkinitrd runs silently).

    --version
    Prints the version of mkinitrd that's being used and then exits.

    --with=module
    Load the modules module in the initial ramdisk image. The module gets loaded after any SCSI modules which are specified in /etc/modprobe.conf. This option may be used as many times as necessary.

     

    FILES

    /dev/loop*
    A block loopback device is used to create the image, which makes this script useless on systems without block loopback support available (only used on kernels < 2.6)

    /etc/modprobe.conf
    Specifies SCSI modules to be loaded and module options to be used.

    /etc/modules.conf
    Specifies SCSI modules to be loaded and module options to be used. (only used on kernels < 2.6)

     

    SEE ALSO

    fstab(5), insmod(1)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    FILES
    SEE ALSO


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