우분투 서버 파티션 확장

# lsblk /dev/sd*
sda 8:0 0 238.5G 0 disk
├─sda1 8:1 0 1G 0 part /boot/efi
├─sda2 8:2 0 2G 0 part /boot
└─sda3 8:3 0 235.4G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 100G 0 lvm /
sdb 8:16 0 238.5G 0 disk

# df -h /
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-ubuntu--lv 98G 98G 0 100% /

# vgdisplay
  --- Volume group ---
  VG Name               ubuntu-vg
  Format                lvm2
  VG Size               235.42 GiB
  Alloc PE / Size       25600 / 100.00 GiB
  Free  PE / Size       34668 / 135.42 GiB

# lvdisplay
  --- Logical volume ---
  LV Path                /dev/ubuntu-vg/ubuntu-lv
  LV Name                ubuntu-lv
  VG Name                ubuntu-vg
  LV Size                100.00 GiB

# lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv
  Size of logical volume ubuntu-vg/ubuntu-lv changed from 100.00 GiB (25600 extents) to 235.42 GiB (60268 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.

# lsblk /dev/sda
NAME                      MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda                         8:0    0 238.5G  0 disk
├─sda1                      8:1    0     1G  0 part /boot/efi
├─sda2                      8:2    0     2G  0 part /boot
└─sda3                      8:3    0 235.4G  0 part
  └─ubuntu--vg-ubuntu--lv 253:0    0 235.4G  0 lvm  /

# df -h /dev/mapper/ubuntu--vg-ubuntu--lv
Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-ubuntu--lv   98G   98G     0 100% /

# resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv
resize2fs 1.46.5 (30-Dec-2021)
Filesystem at /dev/mapper/ubuntu--vg-ubuntu--lv is mounted on /; on-line resizing required
old_desc_blocks = 13, new_desc_blocks = 30
The filesystem on /dev/mapper/ubuntu--vg-ubuntu--lv is now 61714432 (4k) blocks long.

# df -h /
Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-ubuntu--lv  232G   98G  124G  45% /