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
[root@localhost ~]# 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:
- software that runs at boot time (e.g., old versions of LILO)
- 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.
