hi, I am (was) using Fedora 28 installed in several LVs on /dev/sda5 (= PV), where sda is a "big" SSD. by accident, I attached (via SATA hot swap bay) an old harddisk (/dev/sdc1), which was used about 2 months temporarily to move the volume group / logical volumes from the "old" SSD to the "new" SSD (pvadd, pvmove, ...) this combination of old PV and new PV messed up the filesystems. when I noticed the mistake, I did a shutdown and physically removed /dev/sdc. this also removed VG and LVs on /dev/sda5, causing the system crash on boot. the layout was something like this: /dev/sda3 ==> /boot /dev/fedora_sh64/lv_home /dev/fedora_sh64/lv_root /dev/fedora_sh64/lv_var ... [root@localhost-live ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda5 lvm2 --- <47.30g <47.30g [root@localhost-live ~]# pvdisplay "/dev/sda5" is a new physical volume of "<47.30 GiB" --- NEW Physical volume --- PV Name /dev/sda5 VG Name PV Size <47.30 GiB Allocatable NO PE Size 0 Total PE 0 Free PE 0 Allocated PE 0 PV UUID EOi5Ln-W26D-SER2-tLke-xNMP-Prgq-aUfLPz (please note "NEW Physical Volume" ?!?!) [root@localhost-live ~]# vgdisplay [root@localhost-live ~]# lvdisplay [root@localhost-live ~]# pvscan PV /dev/sda5 lvm2 [<47.30 GiB] Total: 1 [<47.30 GiB] / in use: 0 [0 ] / in no VG: 1 [<47.30 GiB] [root@localhost-live ~]# pvck /dev/sda5 Found label on /dev/sda5, sector 1, type=LVM2 001 Found text metadata area: offset=4096, size=1044480 after re-adding the old /dev/sdc1 disk, VG and LVs show up, filesystems a bit damaged, but readable. content is about two months old. [root@localhost-live ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda5 lvm2 --- <47.30g <47.30g /dev/sdc1 fedora_sh64 lvm2 a-- <298.09g 273.30g is there any chance to get VG and LVs back? thanks in advance. _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
