linux命令之partprobe

使用fdisk工具只是将分区信息写入到磁盘，如果需要使用mkfs格式化并使用分区，则需要重新启动系统。partprobe 是一个可以修改kernel中分区表的工具，可以使kernel重新读取分区表而不用重启系统。

# partprobe
这个命令执行完毕之后不会输出任何返回信息，你可以使用mke2fs命令在新的分区上创建文件系统。
在Linux中使用fdisk命令进行分区时，有时会遇到“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.”这种告警信息。

[root@rhel7 ~]# man partprobe
PARTPROBE()                                                             GNU Parted Manual                                                            PARTPROBE()

NAME
       partprobe - inform the OS of partition table changes

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

DESCRIPTION
       This manual page documents briefly the partprobe command.

       partprobe  is  a program that informs the operating system kernel of partition table changes, by requesting that the operating system re-read the partition
       table.

OPTIONS
       This program uses short UNIX style options.

       -d     Don't update the kernel.

       -s     Show a summary of devices and their partitions.

       -h     Show summary of options.

       -v     Show version of program.