A.1. Restoring the VG UUIDs using uuid_fixer
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.
Download the UUID fixer program from the contributor
directory at Sistina.
It is located at
ftp://ftp.sistina.com/pub/LVM/contrib/uuid_fixer-0.3-IOP10.tar.gz"
Extract uuid_fixer-0.3-IOP10.tar.gz
# tar zxf uuid_fixer-0.3-IOP10.tar.gz
cd to uuid_fixer
You have one of two options at this point:
Use the prebuild binary (it is build for i386
architecture).
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>
Build the uuid_builder program from source
Edit the Makefile with your favorite editor, and make
sure LVMDIR points to your LVM source.
Then run 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>
Deactivate any active Volume Groups
(optional )
Run vgscan
Reactivate Volume Groups