Thank you anyway. I have tried to modify the data by myself but I don't understand everything. But pvdata gives more coherent inofrmtation. I continue some tests because my data is very important. First question : Is there any document that discribes the structure of the data ? I order to reinstall the portable pc, I made a backup of the 3 partitions, and also backup of the ârtition table of the disk. So after dd of the partitions I have 3 normal files. I tried a pvimport -f oldvg hda6 hda5 hda1 The result is: cannot stat hda6. Question 2 : Is there any way to import the vg directly from these files ? Thanks a lot Pascal Garcia _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/