You can always use the below script to take a backup of the ODM

cd /etc/objrepos
for i in CuAt CuDv CuDvDr CuDep
do
odmget $i > /tmp/$i.orig
done

CuAt = Customized Attribute
CuDv = Customized Device
CuDvDr = Customized Device Driver
CuDep = Customized Dependency
CuVPD = Customized Vital Product Database