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澳门娱乐场网址:Linux 硬盘分区生效命令partpro

来源:http://www.ablakeforum.com 作者:澳门娱乐场网址 时间:2019-10-21 17:28

学习了一个新的命令:partprobe,英语字面意思是分区探测,这个命令可以使操作系统不需要重启而使新的磁盘分区生效。

Linux 硬盘分区生效命令partprobe,linuxpartprobe

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。如下所示

[[email protected] ~]# fdisk /dev/sde

The number of cylinders for this disk is set to 18928.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sde: 155.6 GB, 155692564480 bytes
255 heads, 63 sectors/track, 18928 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sde1               1       18275   146793906    5  Extended
/dev/sde5               1       18275   146793874   83  Linux

Command (m for help): n
Command action
   l   logical (5 or over)
   p   primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (18276-18928, default 18276):
Using default value 18276
Last cylinder or size or sizeM or sizeK (18276-18928, default 18928):
Using default value 18928

Command (m for help): w
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.
Syncing disks.

此时使用fdisk命令看不到新建的分区信息,可以使用partprobe命令解决这个问题而不用重启系统,因为partprobe可以使kernel重新读取分区信息,从而避免重启系统。

partprobe - inform the OS of partition table changes

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.

http://www.bkjia.com/Linuxjc/1051193.htmlwww.bkjia.comtruehttp://www.bkjia.com/Linuxjc/1051193.htmlTechArticleLinux 硬盘分区生效命令partprobe,linuxpartprobe 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...

默认位置/sbin/partprobe。相关命令:parted.

实际使用过程中,有时会报告警告信息,没有成功更新分区信息。

partprobe -s

Warning: WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy).  As a result, it may not reflect all of your changes until after reboot.

名字

partprobe - 把分区表的变化信息通知到系统内核。

摘要

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

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