Set CentOS boot wait time

The Centos6.x operating system has a system wait time each time it is started. this option is most commonly used to change the password. if you do not need to change the password, you usually need to quickly enter the system. Because the system wait time can be modified. The default wait time is 5 seconds. after you set the wait time to 0 seconds, save the settings and restart the server. then, the system will be quickly skipped and enter the system. However, we recommend that you set the wait time to 1 second, in this way, when you forget the password, you can promptly press the option to reset the password. [P

The Centos6.x operating system has a system wait time each time it is started. this option is most commonly used to change the password. if you do not need to change the password, you usually need to quickly enter the system. Because the system wait time can be modified.

The default wait time is 5 seconds. after you set the wait time to 0 seconds, save the settings and restart the server. then, the system will be quickly skipped and enter the system. However, we recommend that you set the wait time to 1 second, in this way, when you forget the password, you can promptly press the option to reset the password.

 

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1. [Root @ rac1 grub] # cat/boot/grub/menu. lst
2. # Grub. conf generated by anaconda
3. #
4. # Note that you do not have to rerun grub after making changes to this file
5. # NOTICE: You have a/boot partition. This means that
6. # All kernel and initrd paths are relative to/boot/, eg.
7. # Root (hd0, 0)
8. # Kernel/vmlinuz-version ro root =/dev/mapper/vg_rac1-lv_root
9. # Initrd/initrd-[generic-] version. img
10. # Boot =/dev/sda
11. Default = 0
12. Timeout = 5 // Set the boot option description. the default value is 5 seconds.
13. Splashimage = (hd0, 0)/grub/splash.xpm.gz
14. Hiddenmenu
15. Title Red Hat Enterprise Linux (2.6.32-358. el6.x86 _ 64)
16. Root (hd0, 0)
17. Kernel/vmlinuz-2.6.32-358.el6.x86_64 ro root =/dev/mapper/vg_rac1-lv_root kernel = vg_rac1/lv_root kernel LANG = en_US.UTF-8 rd_NO_MD SYSFONT = latarcyrheb-sun16 crashkernel = 128 M kernel = vg_rac1/lv_swap KEYBOARDTYPE = pc KEYTABLE = us rd_NO_DM rhgb quiet
18. Initrd/initramfs-2.6.32-358.el6.x86_64.img
19.