Replacing the usr Mount partition with CentOS, centosusr

Replacing the usr Mount partition with CentOS, centosusr

Since the partition space previously attached to the/usr directory is too small, more required software cannot be installed. Now, add a hard disk and re-mount it to the/usr directory, copy the contents (including permissions and connections) in the/usr directory to the/usr directory of the new disk partition.

Operating System: CentOS6.4

Procedure:

1. log on to the system as a root user

Omitted

2. New disk partition and format

Omitted

3. Original/usr directory backup

Cp-rp/usr temporary directory/(any directory with sufficient space)

4. view the UUID of the new disk partition and update the automatic mounting configuration file.

Ls-l/dev/disk/by-uuid

Vim/etc/fstab

5. restart the system, log on as the root user, recover/usr from the temporary directory, and delete the contents of the temporary directory.

Cp-rp temporary directory/usr/*/usr

Rm-rf temporary directory/usr