Dear All, I have one VG with one LV inside consist of four disk (and four PV) somehow the UUID is changed. I try to restore with the last known good configuration and use
pvcreate --uuid xxx --restorefile xxx
but I think when I first time do it I did use wrong UUID for two device. but haven't only using command above and haven't used vgcfgrestore. After carefully read the configuration, using hdparm to know device serial number I think I have assign the right UUID for each device. I succesfully use vgcfgrestore, but I cannot mount the device (unknown filesystem, bad superblock, etc). My questions are, is my first attempt to assigning (wrong) UUID make all the LVM corrupt? I see that all LE and PE is still there, the VG and LV size is right but still I cannot mount the volume. Is this just a bad filesystem or the data really gone? Thank you. Regards,