partproble在RHEL 6下无法更新分区信息

在RHEL5.x版本下面，在添加磁盘分区等操作后，一直使用partproble命令使内核重新读取分区表信息，从而不用重新启动。但是最近在RHEL 6（Red Hat Enterprise Linux Server release 6.6 （Santiago））下，使用partprobe出现错误。[root@localhost ~]# lsof /dev/sda<！--CRLF-->[root@localhost ~]# partprobe /dev/sda<！--CRLF-->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.<！--CRLF--> 后面查了一下资料发现，在官方文档How to use a new partition in RHEL6 without reboot中有如下介绍partprobe was commonly used in RHEL 5 to inform the OS of partition table changes on the disk. In RHEL 6, it will only trigger the OS to update the partitions on a disk that none of its partitions are in use （e.g. mounted）. If any partition on a disk is in use, partprobe will not trigger the OS to update partitions in the system because it is considered unsafe in some situations.更多RedHat相关信息见RedHat 专题页面 http://www.linuxidc.com/topicnews.aspx？tid=10本文永久更新链接地址