How to restore Centos to show detailed startup process mode after startup

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After the Linux system such as CentOS starts up, there may be a process of reading the progress bar waiting to enter the system, and we can restore it to show the detailed startup process mode.

Modify the / boot/grub/grub.conf file using the root user.

[root@Slyar ~] # vim / boot/grub/grub.conf

Find the following section, remove the "rhgb" and save it. Where "rhgb" means "redhat graphics boot", which is the graphic progress bar mode. "quiet" means that only important startup information is displayed during startup, and messages such as hardware self-test are not displayed and can be selected selectively.

Kernel / vmlinuz-2.6.32-71.el6.i686 ro root=UUID=697cb0d9-19f6-414a-90a1-5ceb2f40b03d rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=zh_CN.UTF-8 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet

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