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>Restoring the VG UUIDs using uuid_fixer</TITLE
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><A
NAME="uuidfixer"
></A
>A.1. Restoring the VG UUIDs using uuid_fixer</H1
><P
>&#13; If you've upgraded LVM from previous versions to early 0.9 and
0.9.1 versions of LVM and <B
CLASS="command"
>vgscan</B
> says
<TT
CLASS="computeroutput"
>vgscan -- no volume groups found</TT
>,
this is one way to fix it.
</P
><P
></P
><UL
><LI
><P
>&#13; Download the UUID fixer program from the contributor
directory at Sistina.
</P
><P
>&#13; It is located at
<A
HREF="ftp://ftp.sistina.com/pub/LVM/contrib/uuid_fixer-0.3-IOP10.tar.gz"
TARGET="_top"
>ftp://ftp.sistina.com/pub/LVM/contrib/uuid_fixer-0.3-IOP10.tar.gz"</A
>
</P
></LI
><LI
><P
>&#13; Extract <TT
CLASS="filename"
>uuid_fixer-0.3-IOP10.tar.gz</TT
>
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># tar zxf uuid_fixer-0.3-IOP10.tar.gz</B
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
></LI
><LI
><P
>&#13; cd to uuid_fixer
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># cd uuid_fixer</B
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
><P
>&#13; You have one of two options at this point:
</P
><P
></P
><OL
TYPE="1"
><LI
><P
>&#13; Use the prebuild binary (it is build for i386
architecture).
</P
><P
>&#13; Make sure you list all the PVs in the VG you are
restoring, and follow the prompts
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># ./uuid_fixer </B
><TT
CLASS="replaceable"
><I
>&#60;LIST OF ALL PVS IN VG TO BE RESTORED&#62;</I
></TT
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
></LI
><LI
><P
>&#13; Build the uuid_builder program from source
</P
><P
>&#13; Edit the Makefile with your favorite editor, and make
sure LVMDIR points to your LVM source.
</P
><P
>&#13; Then run make.
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># make</B
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
><P
>&#13; Now run uuid_fixer. Make sure you list all the PVs in
the VG you are restoring, and follow the prompts.
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># ./uuid_fixer </B
><TT
CLASS="replaceable"
><I
>&#60;LIST OF ALL PVS IN VG TO BE RESTORED&#62;</I
></TT
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
></LI
></OL
></LI
><LI
><P
>&#13; Deactivate any active Volume Groups
(<EM
>optional</EM
>)
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># vgchange -an</B
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
></LI
><LI
><P
>&#13; Run vgscan
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># vgscan</B
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
></LI
><LI
><P
>&#13; Reactivate Volume Groups
<TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;<B
CLASS="command"
># vgchange -ay</B
>
</PRE
></FONT
></TD
></TR
></TABLE
>
</P
></LI
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