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Bootloader::Tools(3)  User Contributed Perl Documentation Bootloader::Tools(3)

NAME
       Bootloader::Tools - set of high-level bootloader configuration
       functions

PREFACE
       This package contains a set of high-level bootloader configuration
       functions

SYNOPSIS
       "use Bootloader::Tools;"

       "$mp_ref = Bootloader::Tools::ReadMountPoints ();"

       "$part_ref = Bootloader::Tools::ReadPartitions ();"

       "$numDM = Bootloader::Tools::DMRaidAvailable ();"

       "$part_ref = Bootloader::Tools::ReadDMRaidPartitions ();"

       "$part_ref = Bootloader::Tools::ReadDMRaidDisks ();"

       "Bootloader::Tools::IsDMRaidSlave ($kernel_disk);"

       "Bootloader::Tools::IsDMDevice($dev);"

       "$md_ref = Bootloader::Tools::ReadRAID1Arrays ();"

       "$loader = Bootloader::Tools::GetBootloader ();"

       "$value = Bootloader::Tools::GetSysconfigValue ();"

       "Bootloader::Tools::InitLibrary ();"

       "Bootloader::Tools::CountImageSections ($image);"

       "Bootloader::Tools::RemoveImageSections ($image);"

       "Bootloader::Tools::GetSystemLanguage ();"

       "Bootloader::Tools::GetDefaultSection ();"

       "Bootloader::Tools::GetDefaultImage ();"

       "Bootloader::Tools::GetDefaultInitrd ();"

       "Bootloader::Tools::GetGlobals();"

       "Bootloader::Tools::SetGlobals(@params);"

       "Bootloader::Tools::GetSectionList(@selectors);"

       "Bootloader::Tools::GetSection($name);"

       "Bootloader::Tools::AddSection($name, @params);"

       "Bootloader::Tools::RemoveSections($name);"

       "Bootloader::Tools::AdjustSectionNameAppendix ($mode, $sect_ref_new,
       $sect_ref_old);"

       "$exec_with_path =
       Bootloader::Tools::AddPathToExecutable($executable);"

DESCRIPTION
        "$mp_ref = Bootloader::Tools::ReadMountPoints ();"
         reads the information about mountpoints in the system. The returned
         data is needed to initialize the bootloader library properly.

         See InitLibrary function for example.

        "$part_ref = Bootloader::Tools::ReadPartitions ();"
         reads the information about disk partitions. This data is needed to
         initialize the bootloader library properly.

         See InitLibrary function for example.

        "Bootloader::Tools::GetMultipath ();"
         Gets multipath configuration. Return reference to hash map, empty if
         system doesn't contain multipath.

        "Bootloader::Tools::GetMultipath ();"
         Gets multipath configuration. Return reference to hash map, empty if
         system doesn't contain multipath.

        "$numDM = Bootloader::Tools::DMRaidAvailable ();"
         Tests wether DMRAID is available.  Return 0 if no device, 1 if there
         are any.

        "$part_ref = Bootloader::Tools::ReadDMRaidPartitions ();"
         reads partitions belonging to a Devicemapper RAID device.  needed to
         be able to put get the correct translation into Grub notation DMRaid
         Devices look like: <strange name>

         DMRaid Partitions look like: <strange name>_part\d

        "$part_ref = Bootloader::Tools::ReadDMRaidDisks ();"
         returns a refenrence to a list of DMRaid devices

        "Bootloader::Tools::IsDMRaidSlave ($kernel_disk);"
         checks wether a kernel_device is part of a DMRAID returns 1 if yes, 0
         if no

        "Bootloader::Tools:IsDMDevice ($device);"
         returns 1 if $device is a Devicemapper device, otherwise 0.

        "$md_ref = Bootloader::Tools::ReadRAID1Arrays ();"
         reads the information about disk MD RAID1 arrays. This data is needed
         to initialize the bootloader library properly.

        "$loader = Bootloader::Tools::GetBootloader ();"
         returns the used bootloader. Reads the value from sysconfig.  Returns
         the string - bootloader type.

         See InitLibrary function for example.

        "$value = Bootloader::Tools::GetSysconfigValue ();"
         returns specified option from the /etc/sysconfig/bootloader file or
         undef if variable is not set.

         See AddSection for example

        "Bootloader::Tools::InitLibrary ();"
         initializes the bootloader configuration library. Fills its internal
         structures needed for it to run properly.

        "Bootloader::Tools::CountImageSections ($image);"
         counts sections in the bootolader menu reffering to the specified
         kernel.

         EXAMPLE:

           Bootloader::Tools::InitLibrary();
           my $count = Bootloader::Tools::CountImageSections ("/boot/vmlinuz-2.6.11");
           print "Sections: $count\n";

        "Bootloader::Tools::CountSections (@selections);"
         # FIXME: add documentation

        "Bootloader::Tools::UpdateBootloader ();"
         Updates the bootloader settings meaning do whatever it takes for the
         actual bootloader to use the current configuration

        "$lang = Bootloader::Tools::GetSystemLanguage ();"
         Read the System Language from /etc/sysconfig/language:RC_LANG

         EXAMPLE:
           my $Lang;
           $Lang = Bootloader::Tools::GetSystemLanguage ();

           setlocale(LC_MESSAGES, $Lang);

        "%defaultSelection =  Bootloader::Tools::GetDefaultSection ();"
         Get the default section, returns a hash reference

         EXAMPLE:
           my %section;
           %section = Bootloader::Tools::GetDefaultSection ();
           my $default_kernel = $section{"image"};

        "Bootloader::Tools::GetDefaultImage ();"
         Get the kernel name of the default section

         EXAMPLE:
           my $kernel;
           $kernel = Bootloader::Tools::GetDefaultImage ();

           print("Default Kernel Name: $kernel\n");

        "Bootloader::Tools::GetDefaultInitrd ();"
         Get the initrd of the default section

         EXAMPLE:
           my $initrd;
           $initrd = Bootloader::Tools::GetDefaultInitrd ();

           print("Default initrd  Name: $initrd\n");

        "Bootloader::Tools::GetGlobals();"
        "Bootloader::Tools::SetGlobals(@params);"
         # FIXME: Add documentation

        "Bootloader::Tools::GetSectionList(@selectors);"
         # FIXME: Add documentation

        "Bootloader::Tools::GetSection($name);"
         # FIXME: Add documentation

        "Bootloader::Tools::AddSection($name, @params);"
         Add a new section (boot entry) to config file, e.g. to
         /boot/grub/menu.lst

         EXAMPLE:

           my $opt_name = "LabelOfSection";
           my @params = (type   => $type,
                         image  => $opt_image,
                         initrd => $opt_initrd,
           );

           Bootloader::Tools::AddSection ($opt_name, @params);

        "Bootloader::Tools::RemoveImageSections ($image);"
         removes all sections in the bootloader menu referring to the
         specified kernel.

         EXAMPLE:

           Bootloader::Tools::InitLibrary ();
           Bootloader::Tools::RemoveImageSections ("/boot/vmlinuz-2.6.11");
           Bootloader::Tools::UpdateBootloader();

        "Bootloader::Tools::RemoveSections($name);"
        "Bootloader::Tools::AdjustSectionNameAppendix ($mode, $sect_ref_new,
       $sect_ref_old);"
         Adds and respectively removes a potential appendix of a section name.

         In case of mode "add", it adjusts labels which only differ in their
         corresponding flavors in the following way, e.g.:

           SUSE Linux Enterprise Server 10 - 2.6.16.54-0.2.3 (default) and
           SUSE Linux Enterprise Server 10 - 2.6.16.54-0.2.3 (smp)

         Thus, the corresponding flavors will be appended in brackets.

         In case of mode "remove", an appended flavor will be removed from the
         section label if the corresponding section is the only one left
         referring to a kernel with it's specific version.

         EXAMPLE:

           my $mode = "add";
           my $sect_ref_new = \%new_section;
           Bootloader::Tools::AdjustSectionNameAppendix ($mode, $sect_ref_new);

           or

           my $mode = "remove"
           my $sect_ref_new = \@section_naems_after_removal;
           my $sect_ref_old = \@section_names_before_removal;
           Bootloader::Tools::AdjustSectionNameAppendix ($mode, $sect_ref_new, $sect_ref_old);

        "Bootloader::Tools::AddPathToExecutable ($executable);"
         Prepends the corresponding (absolute) path to the given executable
         and returns the result. If not found in path, function returns undef.

         EXAMPLE:

           my $executable = "dmsetup";

           my $exec_with_path = Bootloader::Tools::AddPathToExecutable ($executable);

           if (-e $exec_with_path) {
               print ("The desired executable is located here: $exec_with_path");
           }

perl v5.12.1                      2010-05-25              Bootloader::Tools(3)
 

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Quelle: http://www.trinler.net/de/service/doc/linux/man.html?command=Bootloader%3A%3ATools
Gedruckt am: 23.05.2017 18:53 GMT+0200 (2017-05-23T18:53:28+02:00)