第一种方式（不分区）
磁盘不分区，直接挂载到某个目录。
查看磁盘列表
fdisk -l
[root]# fdisk -lDisk /dev/vdb: 214.7 GB, 214748364800 bytes, 419430400 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
创建目录
mkdir /data
格式化磁盘
有好几种文件格式，需要自己选择下，一般选xfs
mkfs.xfs /dev/vdb
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# mkfs.
mkfs.btrfs mkfs.cramfs mkfs.ext2 mkfs.ext3 mkfs.ext4 mkfs.fat mkfs.minix mkfs.msdos mkfs.vfat mkfs.xfs
挂载到目录（临时）
mount /dev/vdb /data
挂载到目录（永久）
写到/etc/fstab文件中
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# cat /etc/fstab#
# /etc/fstab
# Created by anaconda on Fri Nov 8 10:19:15 2019
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos_host--172--25--9--73-root / xfs defaults 0 0
UUID=8477d0c9-a162-4653-825e-7d10436bbfb3 /boot xfs defaults 0 0
/dev/mapper/centos_host--172--25--9--73-swap swap swap defaults 0 0
/dev/mapper/centos_host--172--25--9--73-swap none swap sw,comment=cloudconfig 0 0
执行 mount -a 立即挂载
第二种方式（分区）
查看磁盘信息
fdisk -l
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# fdisk -lDisk /dev/vda: 214.7 GB, 214748364800 bytes, 419430400 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: 0x000d041cDevice Boot Start End Blocks Id System
/dev/vda1 * 2048 2099199 1048576 83 Linux
/dev/vda2 2099200 41943039 19921920 8e Linux LVM
可以看到/dev/vda又被分成两个分区，占用了20g空间，磁盘中其他的空间还没被挂载。
交互式方式创建分区
fdisk /dev/vda
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# fdisk /dev/vda
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.Command (m for help): m
Command actiona toggle a bootable flagb edit bsd disklabelc toggle the dos compatibility flagd delete a partitiong create a new empty GPT partition tableG create an IRIX (SGI) partition tablel list known partition typesm print this menun add a new partitiono create a new empty DOS partition tablep print the partition tableq quit without saving changess create a new empty Sun disklabelt change a partition's system idu change display/entry unitsv verify the partition tablew write table to disk and exitx extra functionality (experts only)Command (m for help):
输入p打印分区信息
Command (m for help): pDisk /dev/vda: 214.7 GB, 214748364800 bytes, 419430400 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: 0x000d041cDevice Boot Start End Blocks Id System
/dev/vda1 * 2048 2099199 1048576 83 Linux
/dev/vda2 2099200 41943039 19921920 8e Linux LVM
/dev/vda3 41943040 419430399 188743680 83 LinuxCommand (m for help):
输入n创建分区
Command (m for help): n
Partition type:p primary (3 primary, 0 extended, 1 free)e extended
Select (default e): 可以看到还能创建1个分区。
每个磁盘最多能创建4个分区。
创建分区并分配空间
一路空格把剩余空间都分给最后一个分区。
最后输入w保存
完整命令执行过程
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# fdisk -lDisk /dev/vda: 214.7 GB, 214748364800 bytes, 419430400 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: 0x000d041cDevice Boot Start End Blocks Id System
/dev/vda1 * 2048 2099199 1048576 83 Linux
/dev/vda2 2099200 41943039 19921920 8e Linux LVMDisk /dev/vdb: 214.7 GB, 214748364800 bytes, 419430400 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytesDisk /dev/mapper/centos_host--172--25--9--73-root: 18.5 GB, 18513657856 bytes, 36159488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytesDisk /dev/mapper/centos_host--172--25--9--73-swap: 1879 MB, 1879048192 bytes, 3670016 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@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
vda 252:0 0 200G 0 disk
├─vda1 252:1 0 1G 0 part /boot
└─vda2 252:2 0 19G 0 part ├─centos_host--172--25--9--73-root 253:0 0 17.2G 0 lvm /└─centos_host--172--25--9--73-swap 253:1 0 1.8G 0 lvm [SWAP]
vdb 252:16 0 200G 0 disk /data
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# fdisk /dev/vda
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.Command (m for help): m
Command actiona toggle a bootable flagb edit bsd disklabelc toggle the dos compatibility flagd delete a partitiong create a new empty GPT partition tableG create an IRIX (SGI) partition tablel list known partition typesm print this menun add a new partitiono create a new empty DOS partition tablep print the partition tableq quit without saving changess create a new empty Sun disklabelt change a partition's system idu change display/entry unitsv verify the partition tablew write table to disk and exitx extra functionality (experts only)Command (m for help): pDisk /dev/vda: 214.7 GB, 214748364800 bytes, 419430400 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: 0x000d041cDevice Boot Start End Blocks Id System
/dev/vda1 * 2048 2099199 1048576 83 Linux
/dev/vda2 2099200 41943039 19921920 8e Linux LVMCommand (m for help): n
Partition type:p primary (2 primary, 0 extended, 2 free)e extended
Select (default p):
Using default response p
Partition number (3,4, default 3):
First sector (41943040-419430399, default 41943040):
Using default value 41943040
Last sector, +sectors or +size{K,M,G} (41943040-419430399, default 419430399):
Using default value 419430399
Partition 3 of type Linux and of size 180 GiB is setCommand (m for help): w
The partition table has been altered!Calling ioctl() to re-read partition table.WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# lsblk /dev/vda
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 252:0 0 200G 0 disk
├─vda1 252:1 0 1G 0 part /boot
└─vda2 252:2 0 19G 0 part ├─centos_host--172--25--9--73-root 253:0 0 17.2G 0 lvm /└─centos_host--172--25--9--73-swap 253:1 0 1.8G 0 lvm [SWAP]
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# partprobe /dev/vda
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sr0 11:0 1 1024M 0 rom
vda 252:0 0 200G 0 disk
├─vda1 252:1 0 1G 0 part /boot
├─vda2 252:2 0 19G 0 part
│ ├─centos_host--172--25--9--73-root 253:0 0 17.2G 0 lvm /
│ └─centos_host--172--25--9--73-swap 253:1 0 1.8G 0 lvm [SWAP]
└─vda3 252:3 0 180G 0 part
vdb 252:16 0 200G 0 disk /data
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# mkfs.xfs /dev/vda3
meta-data=/dev/vda3 isize=512 agcount=4, agsize=11796480 blks= sectsz=512 attr=2, projid32bit=1= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=47185920, imaxpct=25= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=23040, version=2= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]#
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# mkdir /data02
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# mount /dev/vda3 /data02
[root@ecs-jindie-distributedmessage-0002 admq-V2.2.1]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos_host--172--25--9--73-root 18G 4.5G 13G 27% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 12M 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vda1 1014M 209M 806M 21% /boot
tmpfs 1.6G 12K 1.6G 1% /run/user/42
/dev/vdb 197G 1.4G 186G 1% /data
tmpfs 1.6G 0 1.6G 0% /run/user/0
/dev/vda3 180G 33M 180G 1% /data02
 ---- D. Non-Palindromic Substring --- 题解)
![hgvs中的[数字]是什么意思](http://pic.xiahunao.cn/hgvs中的[数字]是什么意思)
