centos7 添加xfs硬盘

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本文详细介绍了如何在Linux环境下使用fdisk命令进行磁盘分区，包括创建新的DOS分区表，新增分区，以及使用mkfs.xfs格式化分区。此外，还介绍了如何将分区挂载至文件系统，并通过编辑fstab文件实现开机自动挂载。

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查看当前磁盘分区:
fdisk -l

fdisk /dev/vdb

输入p打印 n新增分区 w保留

输入w保存

格式化磁盘:
mkfs.xfs /dev/vdb1 -f

cd /
mkdir data
mount /dev/vdb1 /data/

加入挂载分区:
cp /etc/fstab /etc/fstab_bak
vi /etc/fstab

/dev/vdb1 /data xfs defaults 0 0

加入到文件fstab
#########################################################
#简洁操作全过程

fdisk -l

fdisk /dev/vdb
n
p
w

mkfs.xfs /dev/vdb1 -f

cd /
mkdir data

mount /dev/vdb1 /data/

vi /etc/fstab

/dev/vdb1 /data xfs defaults 0 0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#操作参考记录1:

[root@myhostname ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 20G 1.3G 18G 7% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 360K 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
tmpfs 380M 0 380M 0% /run/user/0
[root@myhostname ~]# fdisk -l

Disk /dev/vda: 21.5 GB, 21474836480 bytes, 41943040 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: 0x0008d73a

Device Boot Start End Blocks Id System
/dev/vda1 * 2048 41943039 20970496 83 Linux

Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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

[root@myhostname ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xbb02c661.

Command (m for help): p

Device Boot Start End Blocks Id System

Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-209715199, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):
Using default value 209715199
Partition 1 of type Linux and of size 100 GiB is set

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.
[root@myhostname ~]# mkfs.xfs /dev/vdb1 -f
meta-data=/dev/vdb1 isize=512 agcount=4, agsize=6553536 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=26214144, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=12799, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0