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我可以看到我的 LVM，但无法初始化它。其中一个磁盘缺少 UUID

tag-icon • tag-icon linux debian lvm
我可以看到我的 LVM，但无法初始化它。其中一个磁盘缺少 UUID

我有一个名为 Data 的 2 磁盘 LVM，已经运行了大约 6 个月，最近我购买了第三块磁盘。我在机器中安装了磁盘，并想格式化它并将 lvm 扩展到它上面，就像我之前所做的那样。系统拒绝格式化该磁盘，声称该磁盘已在使用中。我四处寻找可能的解决方案，最终使用 dmsetup remove_all。这使我能够格式化新驱动器，但现在系统似乎 lvm 中的两个磁盘之一出现问题。我不知道下一步是什么。

将尝试包含尽可能多的信息。 Sda 是用于系统/交换等的 500GB 磁盘。Sdb 和 sdc 是两个已经存在的磁盘，sdd 是最新添加的磁盘。 Sdb、sdc和sdd都是3TB磁盘。我基本上只是希望恢复lvm，并且可能包含其中的新磁盘。似乎解决方案就在我面前，我只是不太知道该怎么办。


  root@Localhost:~$ sudo lvdisplay

  Couldn't find device with uuid DLdcnb-5EzK-Vhw2-3M10-8JG8-R0X1-OjWyW2.
  --- Logical volume ---
  LV Path                /dev/Data/cargo
  LV Name                cargo
  VG Name                Data
  LV UUID                avSFsQ-J49l-twOa-j9KM-Dkeg-JDBE-aG1yWC
  LV Write Access        read/write
  LV Creation host, time Enterprise, 2013-09-22 18:32:06 +0100
  LV Status              NOT available
  LV Size                5.46 TiB
  Current LE             1430792
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto


root@Localhost:~$ sudo vgdisplay

  Couldn't find device with uuid DLdcnb-5EzK-Vhw2-3M10-8JG8-R0X1-OjWyW2.
  --- Volume group ---
  VG Name               Data
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                1
  Open LV               0
  Max PV                0
  Cur PV                2
  Act PV                1
  VG Size               5.46 TiB
  PE Size               4.00 MiB
  Total PE              1430792
  Alloc PE / Size       1430792 / 5.46 TiB
  Free  PE / Size       0 / 0   
  VG UUID               rR2QmV-cbjs-rOYu-fU62-uEXp-cVfJ-xVHgRp


root@Localhost:~$ sudo vgchange -ay

  Couldn't find device with uuid DLdcnb-5EzK-Vhw2-3M10-8JG8-R0X1-OjWyW2.
  Refusing activation of partial LV cargo. Use --partial to override.
  0 logical volume(s) in volume group "Data" now active


root@Localhost:~$ sudo vgchange -ay --partial

  Partial mode. Incomplete logical volumes will be processed.
  Couldn't find device with uuid DLdcnb-5EzK-Vhw2-3M10-8JG8-R0X1-OjWyW2.
  Cannot activate Data/cargo: all segments missing.
  0 logical volume(s) in volume group "Data" now active


root@Localhost:~$ sudo blkid

/dev/sda7: UUID="200fea91-eed3-4634-8303-ef777e6e60a3" TYPE="swap" 
/dev/sdb: UUID="jH6LUK-hTsX-035m-mdSY-zfHp-oBaR-THVnC2" TYPE="LVM2_member" 
/dev/sda1: UUID="6144b690-afdd-4bd4-a095-a35da926f6bc" TYPE="ext4" 
/dev/sda5: UUID="73df5ee2-33fb-495e-ad20-ad33f82996b1" TYPE="ext4" 
/dev/sda6: UUID="d7a9d483-ed4a-4220-bf57-576723c636b8" TYPE="ext4" 
/dev/sda8: UUID="b5a9d030-d3af-4dfe-b72a-8180128caa11" TYPE="ext4" 
/dev/sda9: UUID="a7c62a16-62ee-406d-ad97-4887c823f40f" TYPE="ext4" 
/dev/sdd1: UUID="mWr3pU-WDNn-8cG2-Xt0z-fZvo-wzLe-wK7Dv3" TYPE="LVM2_member" 


root@Localhost:~$ sudo fdisk -l

Disk /dev/sda: 500 GB, 500105249280 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System 
/dev/sda1   *           1          43      345366   83  Linux
Warning: Partition 1 does not end on cylinder boundary.
/dev/sda2              43       60802   488046667    5  Extended
Warning: Partition 2 does not end on cylinder boundary.
/dev/sda5              43        1137     8787555   83  Linux
Warning: Partition 5 does not end on cylinder boundary.
/dev/sda6            1137        1502     2931862   83  Linux
Warning: Partition 6 does not end on cylinder boundary.
/dev/sda7            1502        2285     6289447   82  Linux swap
Warning: Partition 7 does not end on cylinder boundary.
/dev/sda8            2285        2334      393592   83  Linux
Warning: Partition 8 does not end on cylinder boundary.
/dev/sda9            2334       60802   469644210   83  Linux
Warning: Partition 9 does not end on cylinder boundary.
Error: /dev/sdb: unrecognised disk label
Error: /dev/sdc: unrecognised disk label

Disk /dev/sdd: 3000 GB, 3000590369280 bytes
255 heads, 63 sectors/track, 364801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System 
/dev/sdd1               1      364802  2930272033   83  Linux 
Warning: Partition 1 does not end on cylinder boundary.


picard@Enterprise:~$ sudo pvdisplay -C
  Couldn't find device with uuid DLdcnb-5EzK-Vhw2-3M10-8JG8-R0X1-OjWyW2.
  PV             VG   Fmt  Attr PSize PFree
  /dev/sdb       Data lvm2 a--  2.73t    0 
  /dev/sdd1           lvm2 a--  2.73t 2.73t
  unknown device Data lvm2 a-m  2.73t    0

答案1

你搞砸了。您被告知无法格式化该磁盘，因为该磁盘正在使用中。它曾是正在使用。您试图格式化现有磁盘之一，而不是新磁盘。现在您格式化了现有驱动器并丢失了数据。您将需要从备份中恢复。

您可以从 pvdisplay 输出中看到 /dev/sdd1 100% 空闲，因此这似乎是新驱动器。

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