linux 激活硬盘

yum install lvm2
查看物理卷：pvs

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


2、查看卷组：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

--- 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

LV Status              available

5、挂载逻辑卷：mount   /dev/VolGroup00/LogVol03   /home/lv