Consistently use [0-9] MB for disk & partition sizes.

"meg" is a rather strange unit name.

en_US.ISO8859-1/articles/multi-os/article.sgml

@@ -158,7 +158,7 @@
       <step>
 	<para>I boot from a MS-DOS or Windows 95 boot disk that
 	  contains the <filename>FDISK.EXE</filename> utility and make a small
-	  50 meg primary partition (35-40 for Windows 95, plus a
+	  50&nbsp;MB primary partition (35-40 for Windows 95, plus a
 	  little breathing room) on the first disk.  Also create a
 	  larger partition on the second hard disk for my Windows
 	  applications and data.</para>
@@ -174,7 +174,7 @@
 	  about all the distributions of Linux, but slackware includes
 	  LILO (see <xref linkend="ch2">).  When I am partitioning out
 	  my hard disk with Linux <command>fdisk</command>, I would
-	  put all of Linux on the first drive (maybe 300 megs for a
+	  put all of Linux on the first drive (maybe 300&nbsp;MB for a
 	  nice root partition and some swap space).</para>
       </step>
 
@@ -188,9 +188,9 @@
       <step>
 	<para>The remaining hard disk space can go to FreeBSD.  I also
 	  make sure that my FreeBSD root slice does not go beyond the
-	  1024th cylinder.  (The 1024th cylinder is 528 megs into the
-	  disk with our hypothetical 720MB disks).  I will use the
-	  rest of the hard drive (about 270 megs) for the
+	  1024th cylinder.  (The 1024th cylinder is 528&nbsp;MB into the
+	  disk with our hypothetical 720&nbsp;MB disks).  I will use the
+	  rest of the hard drive (about 270&nbsp;MB) for the
 	  <filename class="directory">/usr</filename> and <filename class="directory">/</filename> slices if I wish.  The
 	  rest of the second hard disk (size depends on the amount of
 	  my Windows application/data partition that I created in step