LVM setup linux

----LVM --------- --> Logical Volume Management -- Shirish Shukla

PV -- Physical Volume
VG -- Volume Group
LV -- Logical Volume

---------Create LVM partition------- /myvol/vo

# fdisk /dev/sda

create new partition 1200Mb of type LVM(8e)

# partprobe -s
# fdisk -l              (Check )

-------------LVM-----------

# pvcreate  /dev/sda10
# vgcreate  myvol   /dev/sda10   (will create VG "myvol")
# vgdisplay                      (Varify VG)
# lvcreate  -L1000M -n vo myvol
# lvdisplay                     
    LV Name   /dev/myvol/vo

# mkfs.ext3 /dev/myvol/vo
# vi   /etc/fstab

Comment
Label=/home ....

and make below entry

/dev/myvol/vo    /home    ext3    defaults    1 2

#umount /home
#mount -a
#mount       (Varify   /home)


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Q: Resize LVM to 300M.

    Check lvm status by using
    # lvdisplay
    # vgdisplay
    # df –h

    Case I: current  <  300M

    #lvextend   -L 300M  /dev/myvol/vo
    #resize2fs  /dev/myvol/vo
    #lvdisplay        …check lvsize
    #df   -h           ….varify  size on /home

    Case II: current > 300M

    #umount  /home
    #e2fsck   –f    /dev/myvol/vo
    #resize2fs   /dev/myvol/vo  300M 
    #lvreduce   -L 300M   /dev/myvol/vo
            ---: type yes
    #lvdisplay      ..varify lv size must be 300M
    #mount  -a
    #mount           …..varify
    #df  -h             …..varify

# Faced any problem Feedback in above contact me
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