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List of contents of this article:

• 1、 How can administrators log in to the system in Linux?
• 2, Parse the boot process of Linux system startup
• 3, How to log in to the linux system

How can administrators log in to enter the system in Linux?

1. Open the virtual machine and start the linux system, as shown in the figure below. Enter the desktop to start, as shown in the figure below. Press and hold Ctrl+Alt+F2 at the same time to enter the code control interface, as shown in the figure below.

2. The first time you start the linux system, you will enter the command line mode, and you will be asked to enter the user name. The default administrator account name is root. After entering "root", you will be prompted to enter the password (the password was set by yourself when installing the system), so that you can log in as an administrator. The system.

3. How to enter root directly in Linux system? Log in with an ordinary user, execute sudo-s on the terminal, and then enter the current logged-in ordinary user password to enter the root user mode.Execute gedit/etc/lightdm/lightdm.conf. Add the following two lines of code.

4、". Enter the user name,Hearthstone arena class win rates reddit such as philcheng, and then type the Enter key. You need to enter the password. When entering the password, the password will not be displayed on the screen. Enter, when the user enters the user name and password correctly, he can legally enter the system. Exit the system: enter the command: exit. That is, go back to the state before logging in.

5. First, use the current user (must be an administrator attribute) to enter the local users and users under the group under the control panel → management tools → computer management (local), and check whether the administrator account is enabled.

Analyze the boot process of Linux system startup

1. The task of the main boot program is to find and load the sub-boot program on the hard disk partition. Find the active partition through the partition table, and read the subboot loader in the active partition into the memory and run it. Loading subboot recorder (GRUB) subboot loader only needs to load the Linux kernel.

2. The embedded Linux startup process is divided into four main stages: Bootloader, kernel loading, root file system mounting and system initialization. Bootloader: This is the first stage of the embedded Linux system startup.

3. Install LILO in MBR. At this time, the BIOS directly transfers the LILO code into the memory, and then jumps to execute LILO. That is, BIOS - LILO (in MBR) - KERNEL (2) Install LILO in the LINUX partition and set the LINUX partition to Active.

4. Start the kernel. First, introduce the boot kernel part. When the computer starts, the BIOS loads MBR, and then starts from the current active partition. After LILO gains control of the guided process, the LILO prompt will be displayed.

5. From the simple DOS system to the Windows NT system, people have personally felt these changes - this is no longerIt is only the boot and shutdown of the core operating system, but also includes a considerable number of service items that must be started or closed at the same time.

How to log in to the linux system

1. XFTP method: After downloading and installing XFTP, establish a connection to linux and log in to the linux system; on the left is the windows file, right The side is the folder of Linux. Drag and drop each other to realize file transfer.

2. Enter the Linux username and password to log in to the Linux system. Note that for users before Windows version 18945, it may fail. If it fails, just enter 10.1:3390.

3. How to log in to the Linux system of the development board?The Linux system login operation of the development board is as follows: Method 1: Log in with the debugging serial port.