Hi Im having trouble with a drive. I complains of a missing uuid. I removed the drive from my server, and inserted a new clean drive for testing. The removed drive was placed in cover for protection. It contained the OS ( Scientific Linux 4.9 ). I reinserted the drive after my tests. I then got kernel panic, as the uuid of the one partition was missing. Its import that i can at least recover data from this drive. In the meantime I have put in place a replacement. So now the most important part is to obtain the data from it. #vgs Couldn't find device with uuid b6FYR1-4AJo-zYYy-7Rro-4d36-QbEK-G9L8hP. VG #PV #LV #SN Attr VSize VFree VolGroup00 2 2 0 wz-pn- 297.97g 224.00m myvg 1 1 0 wz--n- 465.56g 0 #vgchange -a y VolGroup00 Couldn't find device with uuid b6FYR1-4AJo-zYYy-7Rro-4d36-QbEK-G9L8hP. Refusing activation of partial LV LogVol00. Use --partial to override. 1 logical volume(s) in volume group "VolGroup00" now active #vgscan --partial Partial mode. Incomplete logical volumes will be processed. Reading all physical volumes. This may take a while... /dev/VolGroup00/LogVol00: read failed after 0 of 4096 at 0: Input/output error /dev/VolGroup00/LogVol00: read failed after 0 of 4096 at 4096: Input/output error Couldn't find device with uuid b6FYR1-4AJo-zYYy-7Rro-4d36-QbEK-G9L8hP. Found volume group "VolGroup00" using metadata type lvm2 Found volume group "myvg" using metadata type lvm2 #lvscan --partial Partial mode. Incomplete logical volumes will be processed. /dev/VolGroup00/LogVol00: read failed after 0 of 4096 at 0: Input/output error /dev/VolGroup00/LogVol00: read failed after 0 of 4096 at 4096: Input/output error Couldn't find device with uuid b6FYR1-4AJo-zYYy-7Rro-4d36-QbEK-G9L8hP. ACTIVE '/dev/VolGroup00/LogVol00' [295.81 GiB] inherit ACTIVE '/dev/VolGroup00/LogVol01' [1.94 GiB] inherit ACTIVE '/dev/myvg/rootvol' [465.56 GiB] inherit #sfdisk -l /dev/sdc sfdisk -l /dev/sdc Disk /dev/sdc: 19457 cylinders, 255 heads, 63 sectors/track Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0 Device Boot Start End #cyls #blocks Id System /dev/sdc1 * 0+ 12 13- 104391 83 Linux /dev/sdc2 13 19456 19444 156183930 8e Linux LVM /dev/sdc3 0 - 0 0 0 Empty /dev/sdc4 0 - 0 0 0 Empty I tried to use pvcreate --restorefile etc, but did not use -ff. #Reference: http://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/mdatarecover.html Anymore information I can provide...??? Regards Lee _______________________________________________ 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/
