Homework on the first day of summer rhcsa training

# 1、 stay VMware How to create virtual machines and install linux operating system

1、 New virtual machine

2、 Choose Custom , You can customize the virtual machine according to your own needs

3、 Just choose the default one for hardware compatibility , Then choose the next step

4、 Don't worry about installing the image file directly

5、 Select the operating system as Linux, Version is red hat 8

6、 The virtual machine name is created by itself , It is recommended not to put the location in the default C disc , Change to another drive letter

7、 The number of processing areas and cores are all 1 Enough already

8、 Select the memory of the virtual machine , Decide according to your own needs

9、 Use the default network connection

10、I/O The controller type can also use the default

11、 You can also use the default disk type

12、 It is recommended to create a new virtual disk

13、 Set the maximum disk size

14、 Modify the disk file name , The default can be

15、 One last check Then select finish , The virtual machine is created

Here is the installation Linux Mirror image

1、 Edit virtual machine settings

2、 choice Rad hat8 Image file

3、 Start virtual machine

4、 Waiting for the installation

5、 Choice language , It is recommended to use all English

6、 The alarm needs to be modified , Other defaults are fine

7、 Disk management Select automatic distribution

8、 Set the administrator password and create a normal user

9、 Wait for the image to be installed

10、 Restart the system after installation

11、 Agree to the agreement

12、 Login Administrator

13、 Enter the administrator user name

14、 installation is complete

# 2、 Change the hostname to server.local

# 3、 Change the network connection mode of virtual machine to host only mode 、nat Pattern 、 Bridge mode and get ip Address using ssh Through difference

User remote connection

# 4、 After the remote connection is successful , Summarize which network mode can access the Internet （ have access to ping Command test ） And look at root The difference between users' and ordinary users' home directories

answer ：

nat Pattern ：

Bridging mode ：

Host only mode ：

summary ：

nat And bridge mode can access the Internet , No internet access in host mode only

root The user's home directory is under the root directory , The home directory of ordinary users is in /home Under the subdirectory of the directory

# 5、 Crack the code

1、 Restart the virtual machine and quickly enter the virtual machine and press up and down to make it stay

2、 find Linux The first line , Add at the end of the line rd.break, Stop it

3、

Mount in read-write mode /sysroot    mount -o remount,rw /sysroot

Get into /sysroot Subsystem      chroot /sysroot/

Change Password    passwd root

4、

Force reset of file system context    touch /.autorelabel

The last two exits exit

And then wait

Finally, the password was reset successfully