reference
https://www.cnblogs.com/leebri/p/16786685.html

前往此網(wǎng)站，找到所需的內(nèi)核
https://kernel.ubuntu.com/~kernel-ppa/mainline/

查看系統(tǒng)架構(gòu)
dpkg --print-architecture

二、下載安裝包
注意：下載除lowlatency以外的deb包

三、安裝內(nèi)核
3.1 進入安裝包保存目錄
將這三個 deb 下載至同一目錄

cd ~/Downloads && mkdir kernel && cd ./kernel
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.100/linux-headers-4.9.100-0409100_4.9.100-0409100.201805160931_all.deb
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.100/linux-headers-4.9.100-0409100-generic_4.9.100-0409100.201805160931_amd64.deb
wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.100/linux-image-4.9.100-0409100-generic_4.9.100-0409100.201805160931_amd64.deb

cd ~/Downloads/kernel
3.2 安裝
sudo dpkg -i *.deb
查看已安裝的內(nèi)核版本dpkg --list | grep linux-image

neu@neu-ubuntu20:~$ dpkg --list | grep linux-image
ii  linux-image-4.15.18-041518-generic         4.15.18-041518.201804190330         amd64        Linux kernel image for version 4.15.18 on 64 bit x86 SMP
ii  linux-image-4.9.100-0409100-generic        4.9.100-0409100.201805160931        amd64        Linux kernel image for version 4.9.100 on 64 bit x86 SMP
rc  linux-image-5.11.0-27-generic              5.11.0-27.29~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.13.0-40-generic              5.13.0-40.45~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.13.0-41-generic              5.13.0-41.46~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.13.0-44-generic              5.13.0-44.49~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.13.0-48-generic              5.13.0-48.54~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.13.0-51-generic              5.13.0-51.58~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.13.0-52-generic              5.13.0-52.59~20.04.1                amd64        Signed kernel image generic
ii  linux-image-5.15.0-41-generic              5.15.0-41.44~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.15.0-43-generic              5.15.0-43.46~20.04.1                amd64        Signed kernel image generic
rc  linux-image-5.15.0-46-generic              5.15.0-46.49~20.04.1                amd64        Signed kernel image generic
ii  linux-image-5.15.0-48-generic              5.15.0-48.54~20.04.1                amd64        Signed kernel image generic
ii  linux-image-5.4.0-128-generic              5.4.0-128.144                       amd64        Signed kernel image generic
ii  linux-image-extra-virtual                  5.4.0.128.129                       amd64        Extra drivers for Virtual Linux kernel image
ii  linux-image-generic                        5.4.0.128.129                       amd64        Generic Linux kernel image
ii  linux-image-generic-hwe-20.04              5.15.0.48.54~20.04.18               amd64        Generic Linux kernel image

可以看到內(nèi)核版本4.9.100-0409100-generic已成功安裝。
3.3 更新
如果直接使用此內(nèi)核重啟，在啟動時會出現(xiàn)以下錯誤：

Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
這就需要update-initramfs和更新grub。

將4.9.100-0409100-generic替換你需要的version

sudo update-initramfs -u -k 4.9.100-0409100-generic
修改grub使4.9.100-0409100-generic為默認啟動項

sudo nano /etc/default/grub
將GRUB_DEFAULT一項修改為：

“Advanced options for Ubuntu>Ubuntu, with Linux 4.9.100-0409100-generic”
同理，記得把4.9.100-0409100-generic替換你需要的version

image

更新grub

sudo update-grub
四、查看是否安裝成功
重啟后，查看內(nèi)核版本。

sudo reboot
uname -r
如果輸出為要安裝的內(nèi)核版本，則操作成功。

neu@neu-ubuntu20:~$ uname -r
4.9.100-0409100-generic文章來源地址http://www.zghlxwxcb.cn/news/detail-719475.html

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