modprobe.conf(5) - phpMan

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MODPROBE.CONF(5)                                              MODPROBE.CONF(5)

       modprobe.d, modprobe.conf - Configuration directory/file for modprobe

       Because  the modprobe command can add or remove more than one module, due to module
       dependencies, we need a method of specifying what options are to be used with those
       modules.  All  files  underneath  the  /etc/modprobe.d directory which end with the
       .conf extension specify those options as required. (the /etc/modprobe.conf file can
       also  be used if it exists, but that will be removed in a future version). They can
       also be used to create convenient aliases: alternate names for a  module,  or  they
       can  override  the  normal  modprobe  behavior  altogether  for  those with special
       requirements (such as inserting more than one module).

       Note that module and alias names (like other module names) can have - or _ in them:
       both are interchangable throughout all the module commands.

       The format of and files under modprobe.d and /etc/modprobe.conf is simple: one com-
       mand per line, with blank lines and lines starting with  '#'  ignored  (useful  for
       adding  comments).  A  '\'  at  the end of a line causes it to continue on the next
       line, which makes the file a bit neater.

       alias wildcard modulename
              This allows you to give alternate names for a module.  For  example:  "alias
              my-mod  really_long_modulename"  means you can use "modprobe my-mod" instead
              of "modprobe really_long_modulename". You can  also  use  shell-style  wild-
              cards,  so  "alias  my-mod* really_long_modulename" means that "modprobe my-
              mod-something" has the same effect. You can't have aliases to other  aliases
              (that  way  lies madness), but aliases can have options, which will be added
              to any other options.

              Note that modules can also contain their own  aliases,  which  you  can  see
              using  modinfo.  These aliases are used as a last resort (ie. if there is no
              real module, install, remove, or alias command in the configuration).

       options modulename option...
              This command allows you to add options to the module modulename (which might
              be  an  alias)  every  time it is inserted into the kernel: whether directly
              (using modprobe modulename or because the module being inserted  depends  on
              this module.

              All  options are added together: they can come from an option for the module
              itself, for an alias, and on the command line.

       install modulename command...
              This is the most powerful primitive: it tells modprobe to run  your  command
              instead  of inserting the module in the kernel as normal. The command can be
              any shell command: this allows you to do any kind of complex processing  you
              might  wish.  For example, if the module "fred" works better with the module
              "barney" already installed (but it doesn't depend on it, so  modprobe  won't
              automatically  load  it), you could say "install fred /sbin/modprobe barney;
              /sbin/modprobe --ignore-install fred", which would do what you wanted.  Note
              the  --ignore-install, which stops the second modprobe from running the same
              install command again.  See also remove below.

              You can also use install to make up modules which don't otherwise exist. For
              example:  "install  probe-ethernet  /sbin/modprobe  e100  ||  /sbin/modprobe
              eepro100", which will first try to load the e100 driver, and  if  it  fails,
              then the eepro100 driver when you do "modprobe probe-ethernet".

              If you use the string "$CMDLINE_OPTS" in the command, it will be replaced by
              any options specified on the modprobe  command  line.  This  can  be  useful
              because  users  expect  "modprobe fred opt=1" to pass the "opt=1" arg to the
              module, even if there's an install command in the configuration file. So our
              above  example  becomes  "install fred /sbin/modprobe barney; /sbin/modprobe
              --ignore-install fred $CMDLINE_OPTS"

       remove modulename command...
              This is similar to the install command above,  except  it  is  invoked  when
              "modprobe  -r"  is  run.  The removal counterparts to the two examples above
              would be: "remove fred /sbin/modprobe -r --ignore-remove fred &&  /sbin/mod-
              probe  -r  barney", and "remove probe-ethernet /sbin/modprobe -r eepro100 ||
              /sbin/modprobe -r e100".

       blacklist modulename
              Modules can contain their own aliases: usually these are aliases  describing
              the devices they support, such as "pci:123...". These "internal" aliases can
              be overridden by normal "alias" keywords, but there are cases where  two  or
              more  modules both support the same devices, or a module invalidly claims to
              support a device: the blacklist keyword indicates that all of that  particu-
              lar module's internal aliases are to be ignored.

       This manual page Copyright 2004, Rusty Russell, IBM Corporation.

       modprobe(8), modules.dep(5)

                                  2005-06-01                  MODPROBE.CONF(5)

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