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如何创建 LVG（卷组）

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如何创建 LVG（卷组） 
mount

输出：

/dev/sda3 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext3 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)

对于 fdisk -l 命令：

fdisk -l

输出如下：

Disk /dev/sda: 1499.7 GB, 1499748892672 bytes
255 heads, 63 sectors/track, 182334 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: 0x0008c375

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          14      103424   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              14         536     4194304   82  Linux swap / Solaris
Partition 2 does not end on cylinder boundary.
/dev/sda3             536      182335  1460299776   83  Linux

这是我尝试运行的命令：

vgcreate vg_dlp /dev/sda3

我得到的输出：

  No physical volume label read from /dev/sda3
  Can't open /dev/sda3 exclusively.  Mounted filesystem?
  Unable to add physical volume '/dev/sda3' to volume group 'vg_dlp'.

我正在尝试为 /dev/sda3 创建卷组，但出现错误。我可以从 /dev/sda3 到 /dev/sda4 占用一些可用空间来创建卷组吗？

答案1

/dev/sda3是您的根文件系统，您不能仅使用简单的命令将其转换为 LVM 卷。消息甚至会准确地告诉您这一点。

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