Sometimes while provisioning
server from an image causes home partition gets assigned with some partition
which you don't want & yoiu want to merge root & home altogether.
Here
is how you can do it:
[root@navicosoft-854
~]# lsblk
NAME
MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda
8:0 0 465.8G 0 disk
├─sda1
8:1 0 1G 0 part /boot
└─sda2
8:2 0 464.8G 0 part
├─centos_navicosoft--user-root
253:0 0 50G
0 lvm /
├─centos_navicosoft--user-swap
253:1 0 31.4G 0
lvm [SWAP]
└─centos_navicosoft--user-home
253:2 0 383.3G 0
lvm /home
sdb
8:16 0 931.5G 0 disk
sdc
8:32 0 465.8G 0 disk
├─vg2-vsv1003--d7ukx3rejw5mmq8i--q6ltarafzvxfk8nh
253:3 0 12G 0 lvm
└─vg2-vsv1004--dgxoydbojwnmbwro--wimqwmuu3ne3t9qw
253:4 0 100G 0 lvm
sdd
8:48 0 931.5G 0 disk
Firstly
umount your home partition.
#
umount /dev/mapper/centos_navicosoft--user-home
Then
you need to remove this volume using lvremove
#
lvremove /dev/mapper/centos_navicosoft--user-home
Do
you really want to remove active logical volume centos_navicosoft-user/home?
[y/n]: y
Logical volume "home" successfully removed
Now
you should extend volume using lvextend
#
lvextend -l +100%FREE -r /dev/mapper/centos_navicosoft--user-root
Size of logical volume centos_navicosoft-user/root changed from 50.00 GiB
(12800 extents) to 433.32 GiB (110930 extents).
Logical volume centos_navicosoft-user/root successfully resized.
meta-data=/dev/mapper/centos_navicosoft--user-root
isize=512 agcount=4, agsize=3276800 blks
=
sectsz=512 attr=2, projid32bit=1
=
crc=1 finobt=0 spinodes=0
data
=
bsize=4096 blocks=13107200, imaxpct=25
=
sunit=0 swidth=0 blks
naming
=version 2
bsize=4096 ascii-ci=0 ftype=1
log
=internal
bsize=4096 blocks=6400, version=2
=
sectsz=512 sunit=0 blks,
lazy-count=1
realtime
=none
extsz=4096 blocks=0, rtextents=0
data
blocks changed from 13107200 to 113592320
[root@navicosoft-user
~]# df -h
Filesystem
Size Used Avail Use% Mounted on
/dev/mapper/centos_navicosoft--user-root
434G 16G 419G 4% /
devtmpfs
32G 0 32G 0% /dev
tmpfs
32G 0 32G
0% /dev/shm
tmpfs
32G 50M 32G 1%
/run
tmpfs
32G 0 32G
0% /sys/fs/cgroup
/dev/sda1
1014M 173M 842M 18% /boot
tmpfs
6.3G 0 6.3G 0%
/run/user/0
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