What if Linux has insufficient partition space ??

Many Linux users encounter the following dilemma when installing the operating system: How to accurately evaluate and allocate the capacity of each hard disk partition? If the original evaluation is inaccurate, once the system partition is insufficient, you may have to back up or delete the relevant data, or even be forced to re-plan the partition and reinstall the operating system to meet the needs of the application system.

LVM is a mechanism for managing Disk Partitions In a Linux environment. It is a logical layer built on top of hard disks and partitions and under the file system, which can improve the flexibility of disk partition management. RHEL5 is installed in the format of LVM logical volume by default. Note that/boot partitions cannot be created based on LVM and must be independent.

The LVM configuration process is also very simple and not very difficult. Therefore, I drew a graphic parsing diagram to parse the entire LVM creation process. For more detailed theoretical knowledge, please refer to some tutorials or go to Google!

This article is from the blog of "the Linux open source technology blog", please be sure to keep this source http://dreamfire.blog.51cto.com/418026/390333