Linux 如何扩容 '/' 磁盘

Question

/home 空间不足
总磁盘80G,'/'30G。如何扩容'/'，或者类似的解决方法感谢？
以下是磁盘信息，感谢

➜  ~ lsblk
NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda    202:0    0  80G  0 disk
├─xvda1 202:1    0   1M  0 part
└─xvda2 202:2    0  30G  0 part /
➜  ~ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda2       30G   13G   18G  44% /
devtmpfs        3.8G     0  3.8G   0% /dev
tmpfs           3.7G     0  3.7G   0% /dev/shm
tmpfs           3.7G   17M  3.7G   1% /run
tmpfs           3.7G     0  3.7G   0% /sys/fs/cgroup
tmpfs           757M     0  757M   0% /run/user/1000
➜  ~ fdisk -l

Disk /dev/xvda: 85.9 GB, 85899345920 bytes, 167772160 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x00000000

    Device Boot      Start         End      Blocks   Id  System
/dev/xvda1               1    62914559    31457279+  ee  GPT
➜  ~

Answer 1

Try solutions

fdisk /dev/xvda2

Enter n
and then enter e
Just press Enter for everything to default
Finally restart the server

➜  ~ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda2       80G   13G   68G  17% /
devtmpfs        3.8G     0  3.8G   0% /dev
tmpfs           3.7G     0  3.7G   0% /dev/shm
tmpfs           3.7G   17M  3.7G   1% /run
tmpfs           3.7G     0  3.7G   0% /sys/fs/cgroup
tmpfs           757M     0  757M   0% /run/user/1000
tmpfs           757M     0  757M   0% /run/user/0
➜  ~