mount: unknown filesystem type 'LVM2_member'解决方案

系统启动到request_module: runaway loop modprobe binfmt-464c挂起

利用U盘系统，挂载硬盘出现：mount: unknown filesystem type 'LVM2_member'

解决办法：

需要安装 lvm2:  

centos:
yum install lvm2

ubuntu:
sudo  apt install lvm2

然后按一下步骤：

1、查看物理卷：pvs

pvs
PV       VG       Fmt   Attr PSize PFree 
/dev/sda2   VolGroup00 lvm2 a- 279.22G 32.00M

2、查看卷组：vgs

vgs
VG       #PV #LV #SN Attr VSize VFree 
VolGroup00 1 4 0 wz--n- 279.22G 32.00M

3、查看逻辑卷：lvdisplay

lvdisplay
--- Logical volume ---
   LV Name             /dev/VolGroup00/LogVol03
   VG Name             VolGroup00
   LV UUID             YhG8Fu-ZGPk-qt8D-AxgC-DzOU-dg1F-z71feI
   LV Write Access        read/write
  LV Status              unenable
   # open                 1
   LV Size             245.97 GB
   Current LE          7871
   Segments             1
   Allocation          inherit
   Read ahead sectors     auto
   - currently set to     256
   Block device           253:2

4、如未激活，需要激活逻辑卷：vgchange -ay /dev/VolGroup00

vgchange -ay /dev/VolGroup00
LV Status              available

5、挂载逻辑卷：

mount   /dev/VolGroup00/LogVol03   /home/lvm