Common Linux Tips

1. Enter single-user mode (similar to Windows Safe mode)

Power on a few seconds when you press any key, go to the Grub menu option, select the kernel system to be modified, press E to enter the editing mode, select kernel line (usually the second row), press E again, at the end of a space to indicate the distinction, then you can enter 1 or single or uppercase S, return to determine, By pressing the B key, you can launch into single-user mode.

2. Enter rescue mode (similar to windowsPE mode)

Rescue mode to be used under the real machine, insert the system CD or USB flash drive, set the BIOS boot entry for the CD or USB drive boot. Restart Select rescue installed system to enter rescue mode

3.Centos Shutdown progress bar at startup displays command details

Modify the/etc/grub.conf or/boot/grub/grub.conf file, find the kernel line, remove the "RHGB" to save, the next reboot will show the details, and "quiet" means that only important boot information is displayed during the boot process. Messages like hardware self-test are not displayed and can be selected selectively.

Common Linux Tips