ubuntu 更换内核

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1: 查看当前安装的内核

dpkg -l|grep linux-image

2: 安装内核

sudo apt-get install linux-image-extra-3.13.0-74-generic

3: 卸载原有内核

sudo apt-get purge linux-image-3.13.0-xx-generic linux-image-extra-3.13.0-xx-generic

4: 更新 grub

sudo update-grub
sudo reboot

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