已有硬盘情况
[root@localhost redhat]# lsblk -p
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
/dev/sda 8:0 0 10G 0 disk #第二块硬盘，虚拟磁盘类型选择STAT。大小选择10G。
/dev/sdb 8:16 0 5G 0 disk #第一块硬盘，虚拟磁盘类型选择SCSI。大小选择5G。
/dev/sr0 11:0 1 11G 0 rom
/dev/nvme0n1 259:0 0 40G 0 disk
├─/dev/nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─/dev/nvme0n1p2 259:2 0 1G 0 part /boot
└─/dev/nvme0n1p3 259:3 0 38.4G 0 part
├─/dev/mapper/rhel-root 253:0 0 36.4G 0 lvm /
└─/dev/mapper/rhel-swap 253:1 0 2G 0 lvm [SWAP]
/dev/nvme0n2 259:4 0 15G 0 disk #第三块硬盘，虚拟磁盘类型选择NVME。大小选择15G。
第一块硬盘
，虚拟磁盘类型选择SCSI。大小选择5G。按mbr格式分区。分两个主分区,大小分别为2G和3G。第一个主分区创建ext2类型的文件系统。第一个主分区挂载到/guazai1目录，并在其中存入1.txt的文类型的文件系统。第二个主分区挂载到/guazai2目录，并在其中存入2.txt的文件。其文件内容是this is 2.txt。
[root@localhost redhat]# fdisk /dev/sdb
Welcome to fdisk (util-linux 2.37.4).
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.
Created a new DOS disklabel with disk identifier 0x4a0cec1a.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-10485759, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-10485759, default 10485759): +2g
Created a new partition 1 of type 'Linux' and of size 2 GiB.
Command (m for help): n
Partition type
p primary (1 primary, 0 extended, 3 free)
e extended (container for logical partitions)
Select (default p):
Using default response p.
Partition number (2-4, default 2):
First sector (4196352-10485759, default 4196352):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (4196352-10485759, default 10485759):
Created a new partition 2 of type 'Linux' and of size 3 GiB.
Command (m for help): p
Disk /dev/sdb: 5 GiB, 5368709120 bytes, 10485760 sectors
Disk model: VMware Virtual S
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x4a0cec1a
Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 4196351 4194304 2G 83 Linux
/dev/sdb2 4196352 10485759 6289408 3G 83 Linux
[root@localhost redhat]# mkfs.ext2 /dev/sdb1
[root@localhost ~]# mkdir /guazai1
[root@localhost ~]# mount /dev/sdb1 /guazai1
[root@localhost ~]# touch /guazai1/1.txt
[root@localhost ~]# mkfs.ext2 /dev/sdb2
[root@localhost ~]# mkdir /guazai2
[root@localhost ~]# mount /dev/sdb2 /guazai2 #第二个主分区挂载到/guazai2目录
[root@localhost ~]# echo this is 2.txt >> /guazai2/2.txt #并在其中存入2.txt的文件。其文件内容是this is 2.txt
第二块硬盘，
虚拟磁盘类型选择STAT。大小选择10G。按mbr格式分区。分一个主分区，大小为1G 。分一个扩展分区。大小为6G。分一个逻辑分区，大小为4G。将主分区创建为ext4类型的文件系统。挂载到/guazai3目录。在其中存入3.txt的文件，其文件内容是this is 3.txt。将逻辑分区创建xfs类型的文件系统。挂载到/guazai4目录。在其中存入4.txt的文件，其文件内容是this is 4.txt。
[root@localhost ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.37.4).
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.
Created a new DOS disklabel with disk identifier 0xe2a851af.
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-20971519, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-20971519, default 20971519): +1g
Created a new partition 1 of type 'Linux' and of size 1 GiB.
Command (m for help): n
Partition type
p primary (1 primary, 0 extended, 3 free)
e extended (container for logical partitions)
Select (default p): e
Partition number (2-4, default 2):
First sector (2099200-20971519, default 2099200):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2099200-20971519, default 20971519): +6g
Created a new partition 2 of type 'Extended' and of size 6 GiB.
Command (m for help): n
Partition type
p primary (1 primary, 1 extended, 2 free)
l logical (numbered from 5)
Select (default p): l
Adding logical partition 5
First sector (2101248-14682111, default 2101248):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2101248-14682111, default 14682111): +4g
Created a new partition 5 of type 'Linux' and of size 4 GiB.
Command (m for help): p
Disk /dev/sda: 10 GiB, 10737418240 bytes, 20971520 sectors
Disk model: VMware Virtual S
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xe2a851af
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 2099199 2097152 1G 83 Linux
/dev/sda2 2099200 14682111 12582912 6G 5 Extended 扩展分区
/dev/sda5 2101248 10489855 8388608 4G 83 Linux #逻辑分区
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# lsblk -p
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
/dev/sda 8:0 0 10G 0 disk
├─/dev/sda1 8:1 0 1G 0 part
├─/dev/sda2 8:2 0 1K 0 part
└─/dev/sda5 8:5 0 4G 0 part
/dev/sdb 8:16 0 5G 0 disk
├─/dev/sdb1 8:17 0 2G 0 part /guazai1
└─/dev/sdb2 8:18 0 3G 0 part /guazai2
/dev/sr0 11:0 1 11G 0 rom
/dev/nvme0n1 259:0 0 40G 0 disk
├─/dev/nvme0n1p1 259:1 0 600M 0 part /boot/efi
├─/dev/nvme0n1p2 259:2 0 1G 0 part /boot
└─/dev/nvme0n1p3 259:3 0 38.4G 0 part
├─/dev/mapper/rhel-root 253:0 0 36.4G 0 lvm /
└─/dev/mapper/rhel-swap 253:1 0 2G 0 lvm [SWAP]
/dev/nvme0n2 259:4 0 15G 0 disk
└─/dev/nvme0n2p1 259:5 0 5G 0 part /guazai5
[root@localhost ~]# mkfs.ext4 /dev/sda1
mke2fs 1.46.5 (30-Dec-2021)
Creating filesystem with 262144 4k blocks and 65536 inodes
Filesystem UUID: 7501cc02-66b7-4845-b21a-9a782d7e65c2
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: done
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
[root@localhost ~]# mkdir /guazai3
[root@localhost ~]# mount /dev/sda1 /guazai3 #将主分区创建为ext4类型的文件系统。挂载到/guazai3目录。
[root@localhost ~]# touch this is 3.txt >> /guazai3/3.txt #在其中存入3.txt的文件，其文件内容是this is 3.txt
[root@localhost ~]# mkfs.xfs /dev/sda5 #将逻辑分区创建xfs类型的文件系统。
meta-data=/dev/sda5 isize=512 agcount=4, agsize=262144 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1 bigtime=1 inobtcount=1 nrext64=0
data = bsize=4096 blocks=1048576, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=16384, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]# mkdir /guazai4
[root@localhost ~]# mount /dev/sda5 /guazai4
[root@localhost ~]# echo this is 4.txt >> /guazai4/4.txt
第三块硬盘，
虚拟磁盘类型选择NVME。大小选择15G。按gpt格式分区。分一个主分区。大小为5G。主分区创建xfs类型的文件系统，挂载到/guazai5目录，在其中存入5.txt的文件，其文件内容是this is 5.txt。
[root@localhost ~]#fdisk /dev/nvme0n2
Welcome to fdisk (util-linux 2.37.4).
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.
Created a new DOS disklabel with disk identifier 0x6443ddfc.
Command (m for help): g
Created a new GPT disklabel (GUID: D978E9DC-00E9-AB4F-8275-3DF965AF56F3).
Command (m for help): n
Partition number (1-128, default 1):
First sector (2048-31457246, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-31457246, default 31457246): +5g
Created a new partition 1 of type 'Linux filesystem' and of size 5 GiB.
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# mkfs.xfs /dev/nvme0n2p1
meta-data=/dev/nvme0n2p1 isize=512 agcount=4, agsize=327680 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=1, sparse=1, rmapbt=0
= reflink=1 bigtime=1 inobtcount=1 nrext64=0
data = bsize=4096 blocks=1310720, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0, ftype=1
log =internal log bsize=4096 blocks=16384, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]# mkdir /guazai5
[root@localhost ~]# mount /dev/nvme0n2p1 /guazai5 #挂载到/guazai5目录
[root@localhost ~]# echo this is 5.txt >> /guazai5/5.txt
