几经波折，因为在网上看到的基本都是amd版本而非arm版，然后最终选定V5.5是因为更新的几个版本的arm版本是false的（在https://kernel.ubuntu.com/~kernel-ppa/mainline/处选择版本时，得看在arm64上是false还是build succeeded，之前没经验呀刚刚才顿悟的）

1，参考文章https://blog.csdn.net/MIRANA0/article/details/106696334

学到了得下载如下四个：

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-headers-5.5.0-050500_5.5.0-050500.202001262030_all.deb

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-headers-5.5.0-050500-generic_5.5.0-050500.202001262030_arm64.deb

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-image-unsigned-5.5.0-050500-generic_5.5.0-050500.202001262030_arm64.deb

wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5/linux-modules-5.5.0-050500-generic_5.5.0-050500.202001262030_arm64.deb

2、然后得安装升级所需的libssl1.1，也有各种版本，选择参考此文https://blog.csdn.net/qq_43828332/article/details/116306244?ops_request_misc=&request_id=&biz_id=102&utm_term=ubuntu%20arm64%20ax200&utm_medium=distribute.pc_search_result.none-task-blog-2~all~sobaiduweb~default-0-.first_rank_v2_pc_rank_v29&spm=1018.2226.3001.4187

sudo nano /etc/apt/sources.list 文件尾部追加 deb http://security.ubuntu.com/ubuntu bionic-security main

然后再sudo apt-get install libssl1.1

3、sudo dpkg -i *.deb

4、还是参考上文的，下载并安装网卡驱动，待尝试

5月15日0:57，sudo apt-get upgrade 死机，怕是不能乱用这个。明天试着以下顺序：先下载4个，然后sudo nano /etc/apt/sources.list 文件尾部追加 deb http://security.ubuntu.com/ubuntu bionic-security main

然后sudo apt-get install libssl1.1，再sudo dpkg -i *.deb ，再reboot