Ching-Chuan Chen's Blogger

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Extend The Disk Space of CentOS 7 VM

Posted on In Disqus:

這篇主要是紀錄怎麼在CentOS 7 VM上延展Disk

基本上，我是參考這篇做出來的

首先，當然你要先把VM的設定打開，將硬碟空間加大

之後，回到VM操作

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# 對disk做操作
fdisk /dev/sda
# 用 p > d > 2 > n > p > 2 > t > 2 > 8e > p > w 這個順序來操作
# p是print，d是刪除，裡面的2都是選擇第二個分區的意思
# n是新增，t應該是align，8e是某個位置，w是寫入

## d之前
#    Device Boot      Start         End      Blocks   Id  System
# /dev/sda1   *        2048     2099199     1048576   83  Linux
# /dev/sda2         2099200    83886079    40893440   8e  Linux LVM
## t之後 (我把硬碟從40G變成600G)
#    Device Boot      Start         End      Blocks   Id  System
# /dev/sda1   *        2048     2099199     1048576   83  Linux
# /dev/sda2         2099200  1258291199   628096000   8e  Linux LVM

# 然後重開
reboot
# resize 你修改的硬碟

# 列出目前空間
df -h
# Filesystem                         Size  Used Avail Use% Mounted on
# /dev/mapper/centos_jamalvm01-root   35G  1.6G   34G   5% /
# devtmpfs                           3.8G     0  3.8G   0% /dev
# tmpfs                              3.9G     0  3.9G   0% /dev/shm
# tmpfs                              3.9G   12M  3.8G   1% /run
# tmpfs                              3.9G     0  3.9G   0% /sys/fs/cgroup
# /dev/sda1                         1014M  222M  793M  22% /boot
# tmpfs                              781M     0  781M   0% /run/user/0

pvresize /dev/sda2
#  Physical volume "/dev/sda2" changed
#  1 physical volume(s) resized / 0 physical volume(s) not resized

lvextend -l +100%FREE /dev/mapper/centos_jamalvm01-root
#  Size of logical volume centos_jamalvm01/root changed from <35.00 GiB (8959 extents) to <595.00 GiB (152319 extents).
#  Logical volume centos_jamalvm01/root successfully resized.

xfs_growfs /
# meta-data=/dev/mapper/centos_jamalvm01-root isize=512    agcount=4, agsize=2293504 blks
#          =                       sectsz=512   attr=2, projid32bit=1
#          =                       crc=1        finobt=0 spinodes=0
# data     =                       bsize=4096   blocks=9174016, imaxpct=25
#          =                       sunit=0      swidth=0 blks
# naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
# log      =internal               bsize=4096   blocks=4479, version=2
#          =                       sectsz=512   sunit=0 blks, lazy-count=1
# realtime =none                   extsz=4096   blocks=0, rtextents=0
# data blocks changed from 9174016 to 155974656

# 列出目前空間
df -h
# Filesystem                         Size  Used Avail Use% Mounted on
# /dev/mapper/centos_jamalvm01-root  595G  1.6G  594G   1% /
# devtmpfs                           3.8G     0  3.8G   0% /dev
# tmpfs                              3.9G     0  3.9G   0% /dev/shm
# tmpfs                              3.9G   12M  3.8G   1% /run
# tmpfs                              3.9G     0  3.9G   0% /sys/fs/cgroup
# /dev/sda1                         1014M  222M  793M  22% /boot
# tmpfs                              781M     0  781M   0% /run/user/0

這樣就搞定了~