Ubuntu Feisty 7.04 manual page repository

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Provided by: lilo_22.6.1-9ubuntu2_i386



        activate - read/write flags marking active boot partition


        /sbin/activate device
        show which partition is currently marked active on device
        /sbin/activate device partition
        mark specified partition as active on given device


        activate  is  a  simple  program which sets the partition which will be
        used to boot the system. To be precise, it sets a flag in the partition
        table  of  the  hard  disk.  This  may or may not have an effect on the
        bootup procedure.  PC booting is complicated, and this manual page does
        not  attempt  to explain it; for more information on what partition you
        should set active, you should consult the documentation for your  boot‐
        loader  (an  example  bootloader  is  lilo,  which has a good manual in
        /usr/share/doc/lilo/ on Debian systems).
        Note that programs such as fdisk will also allow you to set the  active
        partition; it is probably better to use one of these, since they gener‐
        ally provide services such as allowing you to view the partition  table
        before  picking which partition to activate, and provide opportunity to
        confirm actions before writing to the partition table.  However,  these
        programs  have  more  checking  for  ’wrong’ values; for instance, they
        might not allow you to set the active flag  on  an  extended  partition
        (because  this  is generally a bad idea).  activate, on the other hand,
        assumes you really do know what you’re doing and doesn’t have any both‐
        ersome  prompts  or  sanity  checks.   In particular, activate makes no
        checks that the device you give has a partition table on it at all!  If
        you specify the wrong device it will happily write garbage to it.


        device should be a block device such as /dev/hda. Note that it does not
        make sense to give one of the partition devices such as /dev/hda3.
        partition should be a number between 1 and 4 specifying which partition
        should have the active flag set.
        If  no partition number is given, activate will print out the partition
        which is currently marked active.


        activate should check that the device actually has a partition table on


        Werner Almesberger (almesber@bernina.ethz.ch).
        Peter Maydell (pmaydell@chiark.greenend.org.uk) wrote this manual page.
        lilo  comes  with  extensive  documentation;  this  can  be  found   in
        /usr/share/doc/lilo/ on Debian systems.


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