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<TITLE>The Answer Guy 50: More on Maximal Mount Counts &amp; Volume Labels and UUIDs</TITLE>
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<H4>By James T. Dennis,
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<H3 align="left"><img src="../../gx/dennis/qbubble.gif" 
	height="50" width="60" alt="(?) " border="0"
	>More on Maximal Mount Counts &amp; Volume Labels and UUIDs</H3>


<p><strong>From ghaverla on Thu, 23 Dec 1999  
</strong></p>
<!-- ::
More on Maximal Mount Counts &amp; Volume Labels and UUIDs
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:: -->
<P><STRONG>
Dear Answer Guy,
</STRONG></P>
<P><STRONG>
Nice column.  I'm up to my eyeballs in updates (I'm updating
2 Linux machines and 1 Solaris).  Anyway, in the current
"The Answer Guy", you have a reply from Ted T'so on
Maximal Mount Counts which suggests a solution to a
problem I ran into last night.  I'm updating a PC which
has 2 SCSI controllers from 
<A HREF="http://www.suse.com/">S.u.S.E.</A> to 
<A HREF="http://www.debian.org/">Debian</A>, and found that
because the controllers are seen in the reverse order
now, that the devices the disks are assigned to has changed.
Since the one controller is to be used for low performance
or not always connected devices, I don't want that controller
being seen first, which is what has happened under Debian.
These labels, as in
</STRONG></P>
<Pre><STRONG>
LABEL=temp /tmp ext2 defaults 1 2
</STRONG></Pre>
<P><STRONG>
or
</STRONG></P>
<Pre><STRONG>
UUID=3a30d6b4-08a5-11d3-91c3-e1fc5550af17 /usr ext2 defaults 1 2
</STRONG></Pre>
<P><STRONG>
Are they assigned to the entire disk, or to partitions
of a disk?  The way the reply is worded it seems the label goes
with the disk, and not with the partition.
</STRONG></P>
<P><STRONG>
Thanks for any light you can shed on this.
</STRONG></P>
<P><STRONG>
Gord
</STRONG></P>
<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
	HEIGHT="28" WIDTH="50" BORDER="0"
	>
The UUIDs and labels are on filesystems (partitions),
and not on disks (physical volumes).
</BLOCKQUOTE>
<BLOCKQUOTE>
Obviously things will get more confusing and interesting
as we develop LVM (logical volume management) subsystems
under Linux.
</BLOCKQUOTE>

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<H5 align="center"><a href="http://www.linuxgazette.com/copying.html"
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<BR>Published in <I>The Linux Gazette</I> Issue 50 February 2000</H5>
<H6 ALIGN="center">HTML transformation  by
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