Don't do this unless you're really sure of what you're doing. You'll probably lose all your data.
If you've upgraded LVM from previous versions to early 0.9 and 0.9.1
versions of LVM and ``vgscan'' says vgscan -- no volume
groups found, this is one way to fix it.
uuid_fixer-0.3-IOP10.tar.gz
# tar zxf uuid_fixer-0.3-IOP10.tar.gz
# cd uuid_fixer
You have one of two options at this point
# ./uuid_fixer <LIST OF ALL PVS IN VG TO BE RESTORED>
# make
Now run uuid_fixer. Make sure you list all the PVs in the
VG you are restoring, and follow the prompts.
# ./uuid_fixer <LIST OF ALL PVS IN VG TO BE RESTORED>
# vgchange -an
# vgscan
# vgchange -ay