boot盘符怎么删除 管理员技术(六)： 硬盘分区及格式化、 新建一个逻辑卷、调整现有磁盘的分区、扩展逻辑卷的大小、添加(6)

Changed type of partition ‘Linux‘ to ‘Linux LVM‘

Command (m for help): t //修改

Partition number (1-7, default 7): 6 //第6个分区

Hex code (type L to list all codes): 8e //类型为8e（LVM）

Changed type of partition ‘Linux‘ to ‘Linux LVM‘

Command (m for help): t //修改

Partition number (1-7, default 7): 7 //第7个分区

Hex code (type L to list all codes): 82 //类型为82（交换分区）

Changed type of partition ‘Linux‘ to ‘Linux swap / Solaris‘

确认分区结果并保存：

Command (m for help): p

.. ..

Device Boot Start End Blocks Id System

/dev/vdb1 2048 411647 204800 8e Linux LVM

/dev/vdb2 411648 4507647 2048000 83 Linux

/dev/vdb3 4507648 6555647 1024000 83 Linux

/dev/vdb4 6555648 20971519 7207936 5 Extended

/dev/vdb5 6557696 7581695 512000 8e Linux LVM

/dev/vdb6 7583744 11679743 2048000 8e Linux LVM

/dev/vdb7 11681792 12730367 524288 82 Linux swap / Solaris

Command (m for help): w //保存退出

The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 16: Device or resource busy.

The kernel still uses the old table. The new table will be used at

the next reboot or after you run partprobe(8) or kpartx(8)

Syncing disks. //提示重启

3）刷新分区表

[root@server0 ~]# partprobe /dev/vdb

[root@server0 ~]# reboot

步骤二：新建卷组、逻辑卷

1）新建卷组datastore，指定PE大小为16MiB

[root@server0 ~]# vgcreate -s 16MiB datastore /dev/vdb6

Volume group "datastore" successfully created

[root@server0 ~]# vgscan //确认新建的卷组

Reading all physical volumes. This may take a while...

Found volume group "systemvg" using metadata type lvm2

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