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無法掛載LVM2分割區

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無法掛載LVM2分割區

我這裡有一個 160GB 硬碟，其中有一個 LVM2 分割區，其中包含兩個我要掛載的 EXT3 分割區。

但是，當我嘗試在 LVM2 中掛載這兩個分割區中的任何一個時，出現錯誤：

mount: wrong fs type, bad option, bad superblock on /dev/loop0,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

另外，當我運行 fdisk 時，它顯示兩個分割區不包含“有效的分割表”

Disk /dev/sdd: 160.0 GB, 16004188696 bytes
255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0002d815

Device      Boot    Start       End     Blocks      Id  System
/dev/sdd1   *   63      305234      152586      83  Linux
/dev/sdd2       305235      4498199     2096482+    82  Linux swap / Solaris
/dev/sdd3       4498200     312576704   154039252+  8e  Linux LVM

Disk /dev/mapper/VolGroup00-lv_root: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylindars, total 41943040
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mapper/VolGroup00-lv_root doesn't contain a valid partition table

Disk /dev/mapper/VolGroup00-lv_usr2: 136.2 GB, 136197439488 bytes
255 heads, 63 sectors/track, 16558 cylindars, total 266010624 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mapper/VolGroup00-lv_usr2 doesn't contain a valid partition table

以下是lvdisplay的內容：

  --- Logical volume ---
  LV Name                /dev/VolGroup00/lv_root
  VG Name                VolGroup00
  LV UUID                jOeBez-2QxJ-Rwth-ufsK-kohE-dHrW-XwDeEi
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                20.00 GiB
  Current LE             640
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:0

  --- Logical volume ---
  LV Name                /dev/VolGroup00/lv_usr2
  VG Name                VolGroup00
  LV UUID                YvbvFJ-yq2t-gSoV-6CqL-Imby-qx6E-uNu3Iz
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                126.84 GiB
  Current LE             4059
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           252:1

你們有什麼建議嗎？我確信它們是 ext3 分區..

答案1

根據我的經驗，在處理 ext2/ext3 格式的邏輯磁碟區時，您不需要提供要掛載的檔案系統類型。

鑑於您的輸出，lvdisplay您應該安裝 2 個邏輯磁碟區之一，如下所示：

 $ mount /dev/VolGroup00/lv_root /mnt
 -or-
 $ mount /dev/VolGroup00/lv_usr2 /mnt

如果其中任何一個出現問題，您可以使用該命令lvscan來確保它們處於活動狀態。

例子

$ lvscan
  ACTIVE            '/dev/VolGroup00/LogVol00' [228.53 GB] inherit
  ACTIVE            '/dev/VolGroup00/LogVol01' [1.94 GB] inherit
  inactive          '/dev/kodak_vg/lvm0' [149.00 GB] inherit
  ACTIVE            '/dev/lvm-raid2/lvm0' [2.73 TB] inherit

如果它未激活，您可以使用 進行設定vgchange。

例子

$ vgchange -ay
  2 logical volume(s) in volume group "VolGroup00" now active
  1 logical volume(s) in volume group "kodak_vg" now active
  1 logical volume(s) in volume group "lvm-raid2" now active

這將使它們全部恢復活動狀態。

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