Debian ABC --- 1st time ---8(VGS)

sudo vgs
chroot@debian:~$ sudo vgs
[sudo] password for chroot: 
  WARNING: Device for PV m269Gt-0k3t-BlXc-Jlz0-HPOH-ljm5-BuDlEy not found or rejected by a filter.
  VG        #PV #LV #SN Attr   VSize VFree
  ubuntu-vg   3   0   0 wz-pn- 1.16t 1.16t

　　history

root@debian:~# vgremove ubuntu-vg
  WARNING: Device for PV m269Gt-0k3t-BlXc-Jlz0-HPOH-ljm5-BuDlEy not found or rejected by a filter.
  Volume group "ubuntu-vg" not found, is inconsistent or has PVs missing.
  Consider vgreduce --removemissing if metadata is inconsistent.

root@debian:~# pvscan
  WARNING: Device for PV m269Gt-0k3t-BlXc-Jlz0-HPOH-ljm5-BuDlEy not found or rejected by a filter.
  PV [unknown]   VG ubuntu-vg       lvm2 [232.14 GiB / 232.14 GiB free]
  PV /dev/sdb1   VG ubuntu-vg       lvm2 [476.94 GiB / 476.94 GiB free]
  PV /dev/sdc1   VG ubuntu-vg       lvm2 [476.94 GiB / 476.94 GiB free]
  Total: 3 [1.16 TiB] / in use: 3 [1.16 TiB] / in no VG: 0 [0   ]

root@debian:~# vgdisplay 
  WARNING: Device for PV m269Gt-0k3t-BlXc-Jlz0-HPOH-ljm5-BuDlEy not found or rejected by a filter.
  --- Volume group ---
  VG Name               ubuntu-vg
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  8
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                0
  Open LV               0
  Max PV                0
  Cur PV                3
  Act PV                2
  VG Size               1.16 TiB
  PE Size               4.00 MiB
  Total PE              303620
  Alloc PE / Size       0 / 0   
  Free  PE / Size       303620 / 1.16 TiB
  VG UUID               2fqu5S-j5zd-Wnwf-bfkr-mupd-MyXk-DfbyCG

　　#linkage

root@debian:~# vgremove --force ubuntu-vg
  WARNING: Device for PV m269Gt-0k3t-BlXc-Jlz0-HPOH-ljm5-BuDlEy not found or rejected by a filter.
  Volume group "ubuntu-vg" successfully removed

root@debian:~# mount /dev/sdb /media/
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

root@debian:~# pvscan 
  PV /dev/sdc1                      lvm2 [476.94 GiB]
  PV /dev/sdb1                      lvm2 [476.94 GiB]
  Total: 2 [953.88 GiB] / in use: 0 [0   ] / in no VG: 2 [953.88 GiB]

　　#LVM-相关指令

root@debian:~# pvs -a
  PV         VG Fmt  Attr PSize   PFree  
  /dev/sda1          ---       0       0 
  /dev/sda2          ---       0       0 
  /dev/sda3          ---       0       0 
  /dev/sdb1     lvm2 ---  476.94g 476.94g
  /dev/sdc1     lvm2 ---  476.94g 476.94g
root@debian:~# pvs
  PV         VG Fmt  Attr PSize   PFree  
  /dev/sdb1     lvm2 ---  476.94g 476.94g
  /dev/sdc1     lvm2 ---  476.94g 476.94g

　　#Safematix IT-Security

https://wiki.debian.org/LVM

root@debian:~# service lvm2 start
Failed to start lvm2.service: Unit lvm2.service is masked.