linux – pvresize在增加底层块设备的大小后似乎没有调整大小

我增加了我用作LVM PV的分区大小,但运行pvresize似乎没有看到额外的空间：

cuttle:~# fdisk -l /dev/vda

Disk /dev/vda: 21.5 GB,21474836480 bytes
255 heads,63 sectors/track,2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00027dbb

   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *           1          31      248976   83  Linux
/dev/vda2              32        2610    20715817+  8e  Linux LVM

其中说vda2约为20gig

cuttle:~# pvdisplay
  --- Physical volume ---
  PV Name               /dev/vda2
  VG Name               debian
  PV Size               4.76 GiB / not usable 3.08 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              1217
  Free PE               0
  Allocated PE          1217
  PV UUID               tehZic-5vfN-rsrm-B8lN-lpgc-yQT1-ioH1V0

所以目前的pv约为4-5演出

cuttle:~# pvresize -v /dev/vda2
    Using physical volume(s) on command line
    Archiving volume group "debian" metadata (seqno 12).
    No change to size of physical volume /dev/vda2.
    Resizing volume "/dev/vda2" to 9975981 sectors.
    Updating physical volume "/dev/vda2"
    Creating volume group backup "/etc/lvm/backup/debian" (seqno 13).
  Physical volume "/dev/vda2" changed
  1 physical volume(s) resized / 0 physical volume(s) not resized

pvresize说“物理卷大小/ dev / vda2没有变化”

cuttle:~# pvdisplay
  --- Physical volume ---
  PV Name               /dev/vda2
  VG Name               debian
  PV Size               4.76 GiB / not usable 3.08 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              1217
  Free PE               0
  Allocated PE          1217
  PV UUID               tehZic-5vfN-rsrm-B8lN-lpgc-yQT1-ioH1V0

并且光伏的大小没有改变.

不知道我还可以做些什么来使用额外的空间.我想我可以将分区大小调整为pv的大小,然后添加第二个分区,但在我看来,我在这里尝试做的事情应该可行.

解决方法

man partprobe

NAME
partprobe – inform the OS of partition table changes

SYNOPSIS partprobe [-d] [-s] [devices…]

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