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Tue Nov 13 08:16:38 EST 2012

point, number of sectors, partition type, and whether it is bootable. 
It doesn't include logical partitions as they are described within the
extended partition.

So your MBR just tells your machine to look at the bootable partition
and from there GRUB takes over.

Preston

-- 
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
-Dr. Seuss

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    <div class="moz-cite-prefix">On 4/23/2014 9:35 AM, Paul Cartwright
      wrote:<br>
    </div>
    <blockquote cite="mid:5357CFCE.9070901 at gmail.com" type="cite">
      <meta content="text/html; charset=ISO-8859-1"
        http-equiv="Content-Type">
      <div class="moz-cite-prefix">On 04/23/2014 10:29 AM, Preston
        wrote:<br>
      </div>
      <blockquote cite="mid:5357CE34.6090107 at gmail.com" type="cite">
        <blockquote cite="mid:5356EFF2.6090605 at gmail.com" type="cite"><font
            face="DejaVu Sans"><br>
          </font><br>
        </blockquote>
        here's one of the mbr-backups.<br>
        <br>
        pboyington at openmediavault:/media/3b7fcae9-905e-4863-91fb-ddfee3396254/Data/fsarchive-backup$

        cat mbr-backup-2014-04-15.bak<br>
        # partition table of /dev/sdf<br>
        unit: sectors<br>
        <br>
        /dev/sdf1 : start=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 63, size=224845677, Id=83, bootable<br>
        /dev/sdf2 : start=224845740, size=&nbsp; 9590805, Id= 5<br>
        /dev/sdf3 : start=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0, size=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0, Id= 0<br>
        /dev/sdf4 : start=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0, size=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0, Id= 0<br>
        /dev/sdf5 : start=224845803, size=&nbsp; 9590742, Id=82<br>
        <br>
        maybe you were expecting a hex output like dd does?&nbsp; this is
        handled by sfdisk.</blockquote>
      then I guess I misunderstood what is in an MBR:)<br>
      there is nothing there about grub, or what OSes can be booted,
      just the partition start/end/sizes.. I guess I'm getting
      edumacated:)<br>
      where does the grub info go in the MBR??<br>
    </blockquote>
    <br>
    GRUB is a boot loader and is in your /boot directory (/boot/grub/).<br>
    <br>
    From what little I remember, your MBR just lists the device,
    starting point, number of sectors, partition type, and whether it is
    bootable.&nbsp; It doesn't include logical partitions as they are
    described within the extended partition.<br>
    <br>
    So your MBR just tells your machine to look at the bootable
    partition and from there GRUB takes over.<br>
    <br>
    Preston<br>
    <br>
    <pre class="moz-signature" cols="72">-- 
Be who you are and say what you feel, because those who mind don&#8217;t matter and those who matter don&#8217;t mind.
-Dr. Seuss
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