1、基本存儲配置 1） 添加一塊10G大小的磁盤，將該磁盤分為兩個主分區(qū)，大小為1G、2G。將剩余的空間全部劃分為擴展分 區(qū)。劃分一個邏輯分區(qū)，大小為3G。（主分區(qū)文件系統(tǒng)類型為ext4，邏輯分區(qū)文件系統(tǒng)類型為xfs） 2） 將三個分區(qū)分別掛載到/dir1、/dir2、/dir3。 3） 在第一個主分區(qū)中創(chuàng)建一個文件為file1，內(nèi)容為this is partition1。在第二個分區(qū)中創(chuàng)建一個文 件為file2，內(nèi)容為this is partition2。在第三個分區(qū)中創(chuàng)建一個文件為file3，內(nèi)容為this is partition3。
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 600M 0 part /boot
└─sda2 8:2 0 38G 0 part ├─rhel-root 253:0 0 30G 0 lvm /├─rhel-swap 253:1 0 3G 0 lvm [SWAP]└─rhel-home 253:2 0 5G 0 lvm /home
sdb 8:16 0 10G 0 disk
sr0 11:0 1 10.2G 0 rom
[root@localhost ~]# fd
fdformat fdisk
[root@localhost ~]# fdisk /dev/sdbWelcome to fdisk (util-linux 2.32.1).
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 0x109ae473.Command (m for help): n
Partition typep 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): +1GCreated a new partition 1 of type 'Linux' and of size 1 GiB.Command (m for help): n
Partition typep primary (1 primary, 0 extended, 3 free)e extended (container for logical partitions)
Select (default p): p
Partition number (2-4, default 2): 2
First sector (2099200-20971519, default 2099200):
Last sector, +sectors or +size{K,M,G,T,P} (2099200-20971519, default 20971519): +2GCreated a new partition 2 of type 'Linux' and of size 2 GiB.Command (m for help): n
Partition typep primary (2 primary, 0 extended, 2 free)e extended (container for logical partitions)
Select (default p): e
Partition number (3,4, default 3): 3
First sector (6293504-20971519, default 6293504):
Last sector, +sectors or +size{K,M,G,T,P} (6293504-20971519, default 20971519): +7G
Value out of range.
Last sector, +sectors or +size{K,M,G,T,P} (6293504-20971519, default 20971519): Created a new partition 3 of type 'Extended' and of size 7 GiB.Command (m for help): n
All space for primary partitions is in use.
Adding logical partition 5
First sector (6295552-20971519, default 6295552):
Last sector, +sectors or +size{K,M,G,T,P} (6295552-20971519, default 20971519): +3GCreated a new partition 5 of type 'Linux' and of size 3 GiB.
Command (m for help): p
Disk /dev/sdb: 10 GiB, 10737418240 bytes, 20971520 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
Disklabel type: dos
Disk identifier: 0x109ae473Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 2099199 2097152 1G 83 Linux
/dev/sdb2 2099200 6293503 4194304 2G 83 Linux
/dev/sdb3 6293504 20971519 14678016 7G 5 Extended
/dev/sdb5 6295552 12587007 6291456 3G 83 LinuxCommand (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.[root@localhost ~]# mkfs.ext4 /dev/sdb1
mke2fs 1.45.6 (20-Mar-2020)
Creating filesystem with 262144 4k blocks and 65536 inodes
Filesystem UUID: f244ae4c-6f80-4d9d-b3ab-6582dafb9ca7
Superblock backups stored on blocks: 32768, 98304, 163840, 229376Allocating group tables: done
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done[root@localhost ~]# mkfs.ext4 /dev/sdb2
mke2fs 1.45.6 (20-Mar-2020)
Creating filesystem with 524288 4k blocks and 131072 inodes
Filesystem UUID: b850b145-73f9-4dc2-bab7-891cf31db966
Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
[root@localhost ~]# blkid
/dev/sda1: UUID="36ba8315-64a9-433f-88ca-dbb1d995b7f5" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="32361dfd-01"
/dev/sda2: UUID="Gdz4Gv-HrX2-weAR-XfJk-fFa9-tCqJ-oc8OBH" TYPE="LVM2_member" PARTUUID="32361dfd-02"
/dev/sdb1: UUID="f244ae4c-6f80-4d9d-b3ab-6582dafb9ca7" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="109ae473-01"
/dev/sdb2: UUID="b850b145-73f9-4dc2-bab7-891cf31db966" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="109ae473-02"
/dev/sdb5: UUID="323e38bd-9e59-4274-837e-f21d5a9cfe63" BLOCK_SIZE="512" TYPE="xfs" PARTUUID="109ae473-05"
/dev/sr0: BLOCK_SIZE="2048" UUID="2021-10-13-03-57-25-00" LABEL="RHEL-8-5-0-BaseOS-x86_64" TYPE="iso9660" PTUUID="4d694e6c" PTTYPE="dos"
/dev/mapper/rhel-root: UUID="6708cd69-63f5-4717-837f-3213b6703943" BLOCK_SIZE="512" TYPE="xfs"
/dev/mapper/rhel-swap: UUID="f0cc1221-a76d-4d45-90de-76f9b88eb779" TYPE="swap"
/dev/mapper/rhel-home: UUID="7526f9a5-37fa-43f2-a44a-0680c6f6602b" BLOCK_SIZE="512" TYPE="xfs"
2） 將三個分區(qū)分別掛載到/dir1、/dir2、/dir3。
[root@localhost /]# mkdir /dir1
[root@localhost /]# mkdir /dir2
[root@localhost /]# mkdir /dir3
[root@localhost /]# mount /dev/sdb1 /dir1
[root@localhost /]# mount /dev/sdb2 /dir2
[root@localhost /]# mount /dev/sdb3 /dir3
[root@localhost /]# mount /dev/sdb5 /dir3
3） 在第一個主分區(qū)中創(chuàng)建一個文件為file1，內(nèi)容為this is partition1。在第二個分區(qū)中創(chuàng)建一個文 件為file2，內(nèi)容為this is partition2。在第三個分區(qū)中創(chuàng)建一個文件為file3，內(nèi)容為this is partition3。
[root@localhost /]# echo this is partition1 > /dir1/file1
[root@localhost /]# echo this is partition2 > /dir2/file2
[root@localhost /]# echo this is partition3 > /dir3/file3
[root@localhost /]# ll /dir1 /dir2 /dir3
/dir1:
total 24
-rw-r--r--. 1 root root 19 Nov 4 10:43 file1
drwx------. 2 root root 16384 Nov 4 09:18 lost+found/dir2:
total 20
-rw-r--r--. 1 root root 19 Nov 4 10:44 file2
drwx------. 2 root root 16384 Nov 4 09:18 lost+found/dir3:
total 4
-rw-r--r--. 1 root root 19 Nov 4 10:45 file3
