Creating lvm – how to make partition

How to make partition on free existing volume group.

vgdisplay /dev/vg01
— Volume group —
VG Name vg01
VG Access read/write
VG Status available/resizable
VG # 0
MAX LV 256
Cur LV 6
Open LV 6
MAX LV Size 2 TB
Max PV 256
Cur PV 1
Act PV 1
VG Size 278.81 GB
PE Size 32 MB
Total PE 8922
Alloc PE / Size 1825 / 57.03 GB
Free PE / Size 7097 / 221.78 GB

1- create Logical volume

lvcreate -L 40G -n dbdir vg01

2- Format the new volume with a file system

mkfs.ext3 /dev/vg01/dbdir

3- Create a mount point on your system

mkdir /oracle10

4- mount the new drive

mount /dev/vg01/dbdir /oracle10

5- Create a fstab entry to mount it properly after reboots

vim /etc/fstab

put the following entry

/dev/vg01/dbdir /oracle10 ext3 defaults 0 0

save the file and exit

Note:Please backup your /etc/fstab before doing this
Note: to test that you did not do any mistakes run the following command

mount -a

you should get back to the prompt with no errors

Tags: creating lvm, how to make partition, red hat lvm

Category: Linux Administration