RHCSA磁盘作业（添加三个磁盘）

  第一块硬盘的相关操作 添加硬盘并选择磁盘类型为SCSI 并进行分区

[root@localhost ~]# lsblk -p
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
/dev/sda        8:0    0    5G  0 disk 
/dev/sr0       11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1  259:0    0   20G  0 disk 
├─/dev/nvme0n1p1
│             259:1    0  600M  0 part /boot/efi
├─/dev/nvme0n1p2
│             259:2    0    2G  0 part /boot
└─/dev/nvme0n1p3
              259:3    0 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │           253:0    0 16.4G  0 lvm  /
  └─/dev/mapper/rhel-swap
              253:1    0    3G  0 lvm  [SWAP]

[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 0x812a1003.
 
Command (m for help): n                          //进行分区操作
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):                //选择类型（p：主分区  e：扩展分区）
First sector (2048-10485759, default 2048): 
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-10485759, default 10485759): +2g  //            
                                                                     设置主分区的大小为2GB
 
Created a new partition 1 of type 'Linux' and of size 2 GiB.
 
Command (m for help): p                           //查看主分区信息                   
Disk /dev/sda: 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: 0x812a1003
 
Device     Boot Start     End Sectors Size Id Type
/dev/sda1        2048 4196351 4194304   2G 83 Linux
 Command (m for help): n
Partition type
   p   primary (1 primary, 0 extended, 3 free)
   e   extended (container for logical partitions)
Select (default p): 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): +3g
Value out of range.
Last sector, +/-sectors or +/-size{K,M,G,T,P} (4196352-10485759, default 10485759): +1g
 
Created a new partition 2 of type 'Linux' and of size 1 GiB.
 
Command (m for help): p
Disk /dev/sda: 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: 0x812a1003
 
Device     Boot   Start     End Sectors Size Id Type
/dev/sda1          2048 4196351 4194304   2G 83 Linux
/dev/sda2       4196352 6293503 2097152   1G 83 Linux
 
Command (m for help): wq                               //保存退出
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

[root@localhost ~]# mkfs.ext3 /dev/sda2         //创建文件系统为ext3
mke2fs 1.46.5 (30-Dec-2021)
Creating filesystem with 262144 4k blocks and 65536 inodes
Filesystem UUID: 6f3b0973-6c3f-4b2f-a43f-bae9bf92da42
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 ~]# blkid                      //查看信息
/dev/mapper/rhel-swap: UUID="c2b8e15c-8163-497b-a499-104fa577ea65" TYPE="swap"
/dev/nvme0n1p3: UUID="7h4Y8b-0jNh-0O3L-XH0W-YjnC-IneO-OKqET1" TYPE="LVM2_member" PARTUUID="50efc439-f349-4fa1-af72-fa59ee50b9c6"
/dev/nvme0n1p1: UUID="05B5-4150" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="0eaddf46-c79b-459e-b993-ca63711c3bbb"
/dev/nvme0n1p2: UUID="553c905e-0820-4a51-82f7-ad3dd487d627" TYPE="xfs" PARTUUID="3405594d-0416-4f13-b586-2bf3c4a6698d"
/dev/sr0: UUID="2023-10-25-09-17-25-00" LABEL="RHEL-9-3-0-BaseOS-x86_64" TYPE="iso9660" PTUUID="ece57f7f" PTTYPE="dos"
/dev/mapper/rhel-root: UUID="47528888-6441-4e77-ab90-ca520302d124" TYPE="xfs"
/dev/sda1: UUID="1bd6560c-0630-433a-947b-131f1d45fc55" TYPE="ext2" PARTUUID="812a1003-01"                                             
/dev/sda2: UUID="6f3b0973-6c3f-4b2f-a43f-bae9bf92da42" SEC_TYPE="ext2" TYPE="ext3" PARTUUID="812a1003-02"   //可以看到sda2 的类型为ect3
[root@localhost ~]# mkdir /guazai2
[root@localhost ~]# mount /dev/sda2 /guazai22
mount: /guazai22: mount point does not exist.
[root@localhost ~]# mount /dev/sda2 /guazai2

 
[root@localhost ~]# mount /dev/sda1 /guazai1
[root@localhost ~]# lsblk -p
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
/dev/sda        8:0    0    5G  0 disk 
├─/dev/sda1     8:1    0    2G  0 part /guazai1
└─/dev/sda2     8:2    0    1G  0 part /guazai2
/dev/sr0       11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1  259:0    0   20G  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 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │           253:0    0 16.4G  0 lvm  /
  └─/dev/mapper/rhel-swap
              253:1    0    2G  0 lvm  [SWAP]
[root@localhost ~]# echo this is 1 > /guazai1/1.txt
[root@localhost ~]# ll /guazai1/1.txt
-rw-r--r--. 1 root root 10 Oct 20 15:03 /guazai1/1.txt
[root@localhost ~]# cat /guazai1/1.txt
this is 1.txt

[root@localhost ~]# mount /dev/sda2 /guazai22
mount: /guazai22: mount point does not exist.
[root@localhost ~]# mount /dev/sda2 /guazai2
[root@localhost ~]# lsblk -p
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
/dev/sda        8:0    0    5G  0 disk 
├─/dev/sda1     8:1    0    2G  0 part /guazai1
└─/dev/sda2     8:2    0    1G  0 part /guazai2
/dev/sr0       11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1  259:0    0   20G  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 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │           253:0    0 16.4G  0 lvm  /
  └─/dev/mapper/rhel-swap
              253:1    0    2G  0 lvm  [SWAP]
[root@localhost ~]# echo this is 2 > /guazai2/2.txt
[root@localhost ~]# ll /guazai2/2.txt
-rw-r--r--. 1 root root 10 Oct 20 15:03 /guazai2/2.txt
[root@localhost ~]# cat /guazai2/2.txt
this is 2.txt

二.第二块硬盘

[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 0xc2529b75.
 
Command (m for help): n
Partition type
   p   primary (0 primary, 0 extended, 4 free)
   e   extended (container for logical partitions)
Select (default p): 
 
Using default response p.
Partition number (1-4, default 1): 
First sector (2048-20971519, default 2048): 
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-20971519, default 20971519): +2g
 
Created a new partition 1 of type 'Linux' and of size 2 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: 0xc2529b75
 
Device     Boot Start     End Sectors Size Id Type
/dev/sda1        2048 4196351 4194304   2G 83 Linux
 
Command (m for help): wq
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

[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.
 
 
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 (4196352-20971519, default 4196352): 
Last sector, +/-sectors or +/-size{K,M,G,T,P} (4196352-20971519, default 20971519): +6g
 
Created a new partition 2 of type 'Extended' and of size 6 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: 0xc2529b75
 
Device     Boot   Start      End  Sectors Size Id Type
/dev/sda1          2048  4196351  4194304   2G 83 Linux
/dev/sda2       4196352 16779263 12582912   6G  5 Extended
 
Command (m for help): wq
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

[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.
 
 
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 (4198400-16779263, default 4198400): 
Last sector, +/-sectors or +/-size{K,M,G,T,P} (4198400-16779263, default 16779263): 
 
Created a new partition 5 of type 'Linux' and of size 6 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: 0xc2529b75
 
Device     Boot   Start      End  Sectors Size Id Type
/dev/sda1          2048  4196351  4194304   2G 83 Linux
/dev/sda2       4196352 16779263 12582912   6G  5 Extended
/dev/sda5       4198400 16779263 12580864   6G 83 Linux
 
Command (m for help): lsblk -p
 
00 Empty            24 NEC DOS          81 Minix / old Lin  bf Solaris        
01 FAT12            27 Hidden NTFS Win  82 Linux swap / So  c1 DRDOS/sec (FAT-
02 XENIX root       39 Plan 9           83 Linux            c4 DRDOS/sec (FAT-
03 XENIX usr        3c PartitionMagic   84 OS/2 hidden or   c6 DRDOS/sec (FAT-
04 FAT16 <32M       40 Venix 80286      85 Linux extended   c7 Syrinx         
05 Extended         41 PPC PReP Boot    86 NTFS volume set  da Non-FS data    
06 FAT16            42 SFS              87 NTFS volume set  db CP/M / CTOS / .
07 HPFS/NTFS/exFAT  4d QNX4.x           88 Linux plaintext  de Dell Utility   
08 AIX              4e QNX4.x 2nd part  8e Linux LVM        df BootIt         
09 AIX bootable     4f QNX4.x 3rd part  93 Amoeba           e1 DOS access     
0a OS/2 Boot Manag  50 OnTrack DM       94 Amoeba BBT       e3 DOS R/O        
0b W95 FAT32        51 OnTrack DM6 Aux  9f BSD/OS           e4 SpeedStor      
0c W95 FAT32 (LBA)  52 CP/M             a0 IBM Thinkpad hi  ea Linux extended 
0e W95 FAT16 (LBA)  53 OnTrack DM6 Aux  a5 FreeBSD          eb BeOS fs        
0f W95 Ext'd (LBA)  54 OnTrackDM6       a6 OpenBSD          ee GPT            
10 OPUS             55 EZ-Drive         a7 NeXTSTEP         ef EFI (FAT-12/16/
11 Hidden FAT12     56 Golden Bow       a8 Darwin UFS       f0 Linux/PA-RISC b
12 Compaq diagnost  5c Priam Edisk      a9 NetBSD           f1 SpeedStor      
14 Hidden FAT16 <3  61 SpeedStor        ab Darwin boot      f4 SpeedStor      
16 Hidden FAT16     63 GNU HURD or Sys  af HFS / HFS+       f2 DOS secondary  
17 Hidden HPFS/NTF  64 Novell Netware   b7 BSDI fs          fb VMware VMFS    
18 AST SmartSleep   65 Novell Netware   b8 BSDI swap        fc VMware VMKCORE 
1b Hidden W95 FAT3  70 DiskSecure Mult  bb Boot Wizard hid  fd Linux raid auto
1c Hidden W95 FAT3  75 PC/IX            bc Acronis FAT32 L  fe LANstep        
1e Hidden W95 FAT1  80 Old Minix        be Solaris boot     ff BBT            
Aliases:
   linux          - 83
   swap           - 82
   extended       - 05
   uefi           - EF
   raid           - FD
   lvm            - 8E
   linuxex        - 85
Command (m for help): wq
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

[root@localhost ~]# mkfs.ext4 /dev/sda2
mke2fs 1.46.5 (30-Dec-2021)
mkfs.ext4: inode_size (256) * inodes_count (0) too big for a
    filesystem with 0 blocks, specify higher inode_ratio (-i)
    or lower inode count (-N).
 
[root@localhost ~]# blkid
/dev/mapper/rhel-swap: UUID="c2b8e15c-8163-497b-a499-104fa577ea65" TYPE="swap"
/dev/nvme0n1p3: UUID="7h4Y8b-0jNh-0O3L-XH0W-YjnC-IneO-OKqET1" TYPE="LVM2_member" PARTUUID="50efc439-f349-4fa1-af72-fa59ee50b9c6"
/dev/nvme0n1p1: UUID="05B5-4150" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="0eaddf46-c79b-459e-b993-ca63711c3bbb"
/dev/nvme0n1p2: UUID="553c905e-0820-4a51-82f7-ad3dd487d627" TYPE="xfs" PARTUUID="3405594d-0416-4f13-b586-2bf3c4a6698d"
/dev/sdb2: UUID="6f3b0973-6c3f-4b2f-a43f-bae9bf92da42" TYPE="ext3" PARTUUID="812a1003-02"
/dev/sdb1: UUID="1bd6560c-0630-433a-947b-131f1d45fc55" TYPE="ext2" PARTUUID="812a1003-01"
/dev/sr0: UUID="2023-10-25-09-17-25-00" LABEL="RHEL-9-3-0-BaseOS-x86_64" TYPE="iso9660" PTUUID="ece57f7f" PTTYPE="dos"
/dev/nvme0n2p1: UUID="15dbb67c-4d62-45f0-ab0c-d200c4127801" TYPE="xfs" PARTUUID="66b7a1b1-01"
/dev/mapper/rhel-root: UUID="47528888-6441-4e77-ab90-ca520302d124" TYPE="xfs"
/dev/sda5: PARTUUID="c2529b75-05"
/dev/sda1: PARTUUID="c2529b75-01"

[root@localhost ~]# mkfs.ext4 /dev/sda1 
mke2fs 1.46.5 (30-Dec-2021)
Creating filesystem with 524288 4k blocks and 131072 inodes
Filesystem UUID: 0533ce3b-4862-4b19-b039-a5d078cc9861
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376, 294912
 
Allocating group tables: done                            
Writing inode tables: done                            
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done 
 
[root@localhost ~]# blkid
/dev/mapper/rhel-swap: UUID="c2b8e15c-8163-497b-a499-104fa577ea65" TYPE="swap"
/dev/nvme0n1p3: UUID="7h4Y8b-0jNh-0O3L-XH0W-YjnC-IneO-OKqET1" TYPE="LVM2_member" PARTUUID="50efc439-f349-4fa1-af72-fa59ee50b9c6"
/dev/nvme0n1p1: UUID="05B5-4150" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="0eaddf46-c79b-459e-b993-ca63711c3bbb"
/dev/nvme0n1p2: UUID="553c905e-0820-4a51-82f7-ad3dd487d627" TYPE="xfs" PARTUUID="3405594d-0416-4f13-b586-2bf3c4a6698d"
/dev/sdb2: UUID="6f3b0973-6c3f-4b2f-a43f-bae9bf92da42" TYPE="ext3" PARTUUID="812a1003-02"
/dev/sdb1: UUID="1bd6560c-0630-433a-947b-131f1d45fc55" TYPE="ext2" PARTUUID="812a1003-01"
/dev/sr0: UUID="2023-10-25-09-17-25-00" LABEL="RHEL-9-3-0-BaseOS-x86_64" TYPE="iso9660" PTUUID="ece57f7f" PTTYPE="dos"
/dev/nvme0n2p1: UUID="15dbb67c-4d62-45f0-ab0c-d200c4127801" TYPE="xfs" PARTUUID="66b7a1b1-01"
/dev/mapper/rhel-root: UUID="47528888-6441-4e77-ab90-ca520302d124" TYPE="xfs"
/dev/sda5: PARTUUID="c2529b75-05"
/dev/sda1: UUID="0533ce3b-4862-4b19-b039-a5d078cc9861" TYPE="ext4" PARTUUID="c2529b75-01"
[root@localhost ~]# mkdir /guazai3
[root@localhost ~]# mount /dev/sda1 /guazai3
[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    2G  0 part /guazai3
├─/dev/sda2        8:2    0    1K  0 part 
└─/dev/sda5        8:5    0    6G  0 part 
/dev/sdb           8:16   0    5G  0 disk 
├─/dev/sdb1        8:17   0    2G  0 part 
└─/dev/sdb2        8:18   0    1G  0 part 
/dev/sr0          11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1     259:0    0   20G  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 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │              253:0    0 16.4G  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    3G  0 part 
[root@localhost ~]# echo this is 3 > /guazai3/3.txt
[root@localhost ~]# cat /guazai3/3.txt
this is 3.txt

[root@localhost ~]# mkfs.xfs /dev/sda5
meta-data=/dev/sda5              isize=512    agcount=4, agsize=393152 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=1572608, 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 ~]# blkid
/dev/mapper/rhel-swap: UUID="c2b8e15c-8163-497b-a499-104fa577ea65" TYPE="swap"
/dev/nvme0n1p3: UUID="7h4Y8b-0jNh-0O3L-XH0W-YjnC-IneO-OKqET1" TYPE="LVM2_member" PARTUUID="50efc439-f349-4fa1-af72-fa59ee50b9c6"
/dev/nvme0n1p1: UUID="05B5-4150" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="0eaddf46-c79b-459e-b993-ca63711c3bbb"
/dev/nvme0n1p2: UUID="553c905e-0820-4a51-82f7-ad3dd487d627" TYPE="xfs" PARTUUID="3405594d-0416-4f13-b586-2bf3c4a6698d"
/dev/sdb2: UUID="6f3b0973-6c3f-4b2f-a43f-bae9bf92da42" TYPE="ext3" PARTUUID="812a1003-02"
/dev/sdb1: UUID="1bd6560c-0630-433a-947b-131f1d45fc55" TYPE="ext2" PARTUUID="812a1003-01"
/dev/sr0: UUID="2023-10-25-09-17-25-00" LABEL="RHEL-9-3-0-BaseOS-x86_64" TYPE="iso9660" PTUUID="ece57f7f" PTTYPE="dos"
/dev/nvme0n2p1: UUID="15dbb67c-4d62-45f0-ab0c-d200c4127801" TYPE="xfs" PARTUUID="66b7a1b1-01"
/dev/mapper/rhel-root: UUID="47528888-6441-4e77-ab90-ca520302d124" TYPE="xfs"
/dev/sda1: UUID="0533ce3b-4862-4b19-b039-a5d078cc9861" TYPE="ext4" PARTUUID="c2529b75-01"
/dev/sda5: UUID="4a388ad3-012f-4b80-930d-c5bf4f1c743b" TYPE="xfs" PARTUUID="c2529b75-05"
[root@localhost ~]# mkdir /guazai4 
[root@localhost ~]# mount /dev/sda5 /guazai4
[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    2G  0 part /guazai3
├─/dev/sda2        8:2    0    1K  0 part 
└─/dev/sda5        8:5    0    6G  0 part /guazai4
/dev/sdb           8:16   0    5G  0 disk 
├─/dev/sdb1        8:17   0    2G  0 part 
└─/dev/sdb2        8:18   0    1G  0 part 
/dev/sr0          11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1     259:0    0   20G  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 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │              253:0    0 16.4G  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    3G  0 part 
[root@localhost ~]# echo this is 4 > /guazai4/4.txt
[root@localhost ~]# cat /guazai4/4.txt
this is 4.txt

三.第三块硬盘

//进行磁盘分区
 
[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 0x66b7a1b1.
 
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 (2048-31457279, default 2048): 
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-31457279, default 31457279): +3g
 
Created a new partition 1 of type 'Linux' and of size 3 GiB.
 
Command (m for help): p
Disk /dev/nvme0n2: 15 GiB, 16106127360 bytes, 31457280 sectors
Disk model: VMware Virtual NVMe Disk
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: 0x66b7a1b1
 
Device         Boot Start     End Sectors Size Id Type
/dev/nvme0n2p1       2048 6293503 6291456   3G 83 Linux
 
Command (m for help): wq
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
 
//创建文件系统（xfs类型）
[root@localhost ~]# mkfs.xfs /dev/nvm0n2p1
Error accessing specified device /dev/nvm0n2p1: No such file or directory
Usage: mkfs.xfs
/* blocksize */        [-b size=num]
/* config file */    [-c options=xxx]
/* metadata */        [-m crc=0|1,finobt=0|1,uuid=xxx,rmapbt=0|1,reflink=0|1,
                inobtcount=0|1,bigtime=0|1]
/* data subvol */    [-d agcount=n,agsize=n,file,name=xxx,size=num,
                (sunit=value,swidth=value|su=num,sw=num|noalign),
                sectsize=num
/* force overwrite */    [-f]
/* inode size */    [-i perblock=n|size=num,maxpct=n,attr=0|1|2,
                projid32bit=0|1,sparse=0|1,nrext64=0|1]
/* no discard */    [-K]
/* log subvol */    [-l agnum=n,internal,size=num,logdev=xxx,version=n
                sunit=value|su=num,sectsize=num,lazy-count=0|1]
/* label */        [-L label (maximum 12 characters)]
/* naming */        [-n size=num,version=2|ci,ftype=0|1]
/* no-op info only */    [-N]
/* prototype file */    [-p fname]
/* quiet */        [-q]
/* realtime subvol */    [-r extsize=num,size=num,rtdev=xxx]
/* sectorsize */    [-s size=num]
/* version */        [-V]
            devicename
<devicename> is required unless -d name=xxx is given.
<num> is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
      xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
<value> is xxx (512 byte blocks).
 
[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/sdb           8:16   0    5G  0 disk 
├─/dev/sdb1        8:17   0    2G  0 part 
└─/dev/sdb2        8:18   0    1G  0 part 
/dev/sr0          11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1     259:0    0   20G  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 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │              253:0    0 16.4G  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    3G  0 part 
[root@localhost ~]# mkfs.xfs /dev/nvme0n2p1
meta-data=/dev/nvme0n2p1         isize=512    agcount=4, agsize=196608 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=786432, 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 ~]# blkid
/dev/mapper/rhel-swap: UUID="c2b8e15c-8163-497b-a499-104fa577ea65" TYPE="swap"
/dev/nvme0n1p3: UUID="7h4Y8b-0jNh-0O3L-XH0W-YjnC-IneO-OKqET1" TYPE="LVM2_member" PARTUUID="50efc439-f349-4fa1-af72-fa59ee50b9c6"
/dev/nvme0n1p1: UUID="05B5-4150" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="0eaddf46-c79b-459e-b993-ca63711c3bbb"
/dev/nvme0n1p2: UUID="553c905e-0820-4a51-82f7-ad3dd487d627" TYPE="xfs" PARTUUID="3405594d-0416-4f13-b586-2bf3c4a6698d"
/dev/sdb2: UUID="6f3b0973-6c3f-4b2f-a43f-bae9bf92da42" TYPE="ext3" PARTUUID="812a1003-02"
/dev/sdb1: UUID="1bd6560c-0630-433a-947b-131f1d45fc55" TYPE="ext2" PARTUUID="812a1003-01"
/dev/sr0: UUID="2023-10-25-09-17-25-00" LABEL="RHEL-9-3-0-BaseOS-x86_64" TYPE="iso9660" PTUUID="ece57f7f" PTTYPE="dos"
/dev/nvme0n2p1: UUID="15dbb67c-4d62-45f0-ab0c-d200c4127801" TYPE="xfs" PARTUUID="66b7a1b1-01"
/dev/mapper/rhel-root: UUID="47528888-6441-4e77-ab90-ca520302d124" TYPE="xfs"
/dev/sda1: PARTUUID="b9069054-01"
 
[root@localhost ~]# mkdir /guazai5
[root@localhost ~]# echo this is 5 /guazai5/5.txt
this is 5 /guazai5/5.txt
[root@localhost ~]# echo 'this is 5' /guazai5/5.txt
this is 5 /guazai5/5.txt
[root@localhost ~]# mount /dev/nvme0n2p1 /guazai5
[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/sdb           8:16   0    5G  0 disk 
├─/dev/sdb1        8:17   0    2G  0 part 
└─/dev/sdb2        8:18   0    1G  0 part 
/dev/sr0          11:0    1  9.8G  0 rom  /run/media/root/RHEL-9-3-0-BaseOS-x86_64
/dev/nvme0n1     259:0    0   20G  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 18.4G  0 part 
  ├─/dev/mapper/rhel-root
  │              253:0    0 16.4G  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    3G  0 part /guazai5
[root@localhost ~]# echo this is 5 > /guazai5/5.txt
[root@localhost ~]# cat /guazai5/5.txt
this is 5.txt

至此实验完成