Centos6.2 adjust the home partition size

1. First check the disk usage

DF-H

Filesystem size used avail use % mounted on/dev/mapper/vg-lv_root 50g 8.9g 378g 18%/tmpfs 1.9g 112 K 1.9g 1%/dev/SHM/dev/sda1 485 m 64 M 396 M 14%/boot/dev/mapper/vg-lv_home 390g 7.5g 40g 2%/home

2. Uninstall/home

Umount/home if the system prompts that the process cannot be uninstalled, the process occupies/home. Run the following command to terminate the process: Fuser-m-v-I-k/home.

3. Adjust the partition size

Resize2fs-P/dev/mapper/VG-LVHome 50g if you are prompted to run "e2fsck-F/dev/mapper/VG-LV"Home, then run the relevant command: e2fsck-F/dev/mapper/VG-LVHome and then run the command again: resize2fs-P/dev/mapper/VG-LVHome 50g

4. Mount/home to view disk usage

Mount/home
DF-H

5. Idle Space

The 1000g in the lvreduce-l1000g/dev/mapper/vg-lv_home command is the space size, which is set as needed.

You can use the vgdisplay command to check the size of the operation. You can also run the fdisk-l command to view details.

6. Hanging idle space in the root directory

Lvextend-L + 1000g/dev/mapper/VG-LVRoot
Execute resize2fs
/Dev/mapper/VGVoip-lv_root
Use DF to view the information.