如何在非LVM環境掛載LVM磁區的硬碟

我今天拿了一顆有作LVM分割的硬碟，想要抓取裡面的資料

一般我們掛載都是直接 mount /dev/sdb1 /XXX 就可以了，但

它是經過LVM切割，mount時會跟我要type，無法成功掛載

所以要這麼作 (如下)

1。先 pvscan 掃一下是否有LVM磁區

  PV /dev/hdb2   VG VolGroup   lvm2 [98.80 GB / 0    free]
Total: 1 [98.80 GB] / in use: 1 [98.80 GB] / in no VG: 0 [0   ]

2。就可以看到一個VG名稱叫VolGroup，再用 vgchange -ay VolGroup

  2 logical volume(s) in volume group “VolGroup” now active

3。用lvdisplay查看LV Name

  — Logical volume —
LV Name                /dev/VolGroup/lv_root
VG Name                VolGroup
LV UUID                ezpuV3-k5C3-utDL-uiEW-esH8-XuKf-i8AKXG
LV Write Access        read/write
LV Status              available
# open                 1
LV Size                98.05 GB
Current LE             25100
Segments               1
Allocation             inherit
Read ahead sectors     auto
– currently set to     256
Block device           253:0

— Logical volume —
LV Name                /dev/VolGroup/lv_swap
VG Name                VolGroup
LV UUID                w2sFjH-CaG6-sSdp-caXJ-ep1H-jUwF-5z1hxy
LV Write Access        read/write
LV Status              available
# open                 0
LV Size                768.00 MB
Current LE             192
Segments               1
Allocation             inherit
Read ahead sectors     auto
– currently set to     256
Block device           253:1

4。就可以掛載了 mount /dev/VolGroup/lv_root /path/mount