Kernel startup sequence changes after CentOS 7 kernel upgrade

Source: Internet
Author: User

Kernel startup sequence changes after CentOS 7 kernel upgrade

Upgrade CentOS 7 kernel to 3.15.5, but the default startup Item IS 3.10. Check it and modify it accordingly.

Set Windows to start by default (Change Windows to the system you want)

1. First find Windows menuentry.

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


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


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

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