Fedora16 change the startup sequence and grub2 configuration skills

Fedora16 changes the startup sequence and grub2 configuration skills-general Linux technology-Linux technology and application information. The following is a detailed description. Recently, I changed the host and re-installed the xp and fedora16 dual systems. People who have played the game should know that the dual systems started from fedora by default, now it's not easy to change it to xp boot, at least it's much more troublesome than fedora15! Finally, I have been searching for the Internet for a long time and finally found a joint solution. Now I have posted it, hoping to help more people:
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This is an example of Windows Startup by default:

1. First find Windows menuentry.



# Cat/boot/grub2/grub. cfg | grep Windows





Result:



Menuentry "Windows 7 (loader) (on/dev/sda1)" -- class windows -- class OS {



2. Set Windows as the default startup Item (here you can only use the content in the double quotation marks "" or single quotation marks "in the Command output above)





# Grub2-set-default "Windows 7 (loader) (on/dev/sda1 )"





3. Verify the default startup Item





# Grub2-editenv list



Output:



Saved_entry = Windows 7 (loader) (on/dev/sda1)





4. Generate and update grub. cfg (optional)







The following command uses/etc/grub. the automatic configuration script under d and the variables defined in/etc/default/grub automatically generate the GRUB2 configuration file (including the kernel under/boot), and-o specifies the output file, /boot/grub2/grub. cfg is the default configuration file. If it is a multi-system, it will automatically find them and add them to the Startup Menu list.







# Grub2-mkconfig-o/boot/grub2/grub. cfg





Timeout and background images can be configured in/etc/default/grub.

For example:



GRUB_TIMEOUT = 5

GRUB_DISTRIBUTOR = "Fedora"

GRUB_DEFAULT = saved

GRUB_CMDLINE_LINUX = "rd. md = 0 rd. lvm = 0 rd. dm = 0 KEYTABLE = us quiet SYSFONT = latarcyrheb-sun16 rhgb rd. luks = 0 LANG = en_US.UTF-8"



GRUB_BACKGROUND =/boot/grub2/background.png



GRUB_TERMINAL_OUTPUT = gfxterm

GRUB_THEME =/boot/grub2/mytheme/theme.txt





Note: The following command sets Fedora as the default startup Item:







# Cat/boot/grub2/grub. cfg | grep Fedora





Result:



Menuentry 'ora ora Linux, with Linux 3.1.2-1. fc16.i686. pae' -- class Fedora -- class OS {



Menuentry 'ora ora Linux, with Linux 3.1.1-1. fc16.i686. pae' -- class Fedora -- class OS {

Menuentry 'ora ora Linux, with Linux 3.1.0-7. fc16.i686. pae' -- class Fedora -- class OS {



# Grub2-set-default "Fedora Linux, with Linux 3.1.2-1. fc16.i686. PAE"



# Grub2-editenv list



# Grub2-mkconfig-o/boot/grub2/grub. cfg



From A Curious Programmer