How to Use LVM to increase the size of the root Partition

How to Use LVM to increase the size of the root partition if linux is installed and the default value is selected when you select partition settings, lvm is used for management. After the system runs for a period of time, it finds that the disk capacity of the root partition is insufficient and needs to be expanded. What should we do? The lvm technology can be used to expand the root partition without damaging the partition table. Www.2cto.com 1: First Add a new disk to connect to the host. Start the instance and enter the system. Use root to log on, run fdisk, and add the new disk partition (omitted here ). Here we assume that all the disk capacity is divided into one partition and the partition is/dev/sdb1; 2: Create pv: pvcreate/dev/sdb1 3: Extended VG: vgextend/dev/VolGroup00/dev/sdb14: Run vgdisplay to view the expanded VG. If the displayed capacity increases, the VG is successfully expanded. 5: LV: lvextend-L + n (M, or G)/dev/VolGroup00/LogVol00/dev/VolGroup00 restart the machine, enter Resuce mode, and select skipp when loading the disk. Www.2cto.com 6: Activate VG: Run lvm vgchange-a y/dev/VolGgroup00 (activated by default) 7: Adjust the file system size: first run e2fsck to check the file system. E2fsck/dev/VolGroup00/LogVol008: resize2fs/dev/VolGroup00/LogVol00