What does the boot directory do under centos7?

The boot directory under centos7 is used to store the kernel of the system and the files required to boot the system program; this directory includes the kernel files and files required for booting. In order to avoid insufficient space in the root partition and the inability to start, This directory should be partitioned separately.

The operating environment of this article: centos 7 system, Dell G3 computer.

What is the boot directory under centos7?

/boot The file directory required for the Linux kernel and boot system programs,

such as vmlinuz initrd .img files are located in this directory. Under normal circumstances, the GRUB or LILO system boot manager is also located in this directory.

/boot - Boot loader file, boot directory, including Linux kernel files and files required for booting. It is recommended to partition it separately to avoid insufficient space in the root partition to start.

Contains boot loader Program-related files.

The kernel's initrd, vmlinux, and grub files are located under /boot.

For example:

initrd.img-2.6.32-24-generic、vmlinuz-2.6.32-24-generic

Expand knowledge:

Directory function and meaning

1, /- Root

Every file and directory starts from the root directory.

Only the root user has write permissions in this directory. Please note that /root is the home directory of the root user, which is different from /.

2. /bin - user binary file

contains binary executable files .

In single-user mode, the common Linux commands you need to use are located in this directory. The commands used by all users of the system are located here.

For example: ps, ls, ping, grep, cp

3, /sbin directory - system binary files

Like /bin, / sbin also contains binary executable files.

However, the linux commands in this directory are usually used by system administrators to maintain the system. For example: iptables, reboot, fdisk, ifconfig, swapon command

4, /etc - configuration file

contains the configuration files required by all programs.

Also includes startup and shutdown shell scripts for starting/stopping individual programs. For example: /etc/resolv.conf, /etc/logrotate.conf

5, /dev - device file

contains device files.

These include end devices, USB, or any device connected to the system. For example: /dev/tty1, /dev/usbmon0

6, /proc - Process information

contains information about system processes.

This is a virtual file system that contains information about running processes. For example: information related to a specific pid contained in the /proc/{pid} directory.

This is a virtual file system, and system resources exist in the form of text information. For example: /proc/uptime

7, /var - variable file

var represents the variable file.

Files whose contents may grow can be found in this directory.

This includes - system log files (/var/log); package and database files (/var/lib); email (/var/mail); print queue (/var/spool); lock files (/var/lock);Temporary files required for multiple restarts (/var/tmp);

Recommended tutorial: "centos tutorial"

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