To edit Grub2 during the boot process try the following:

为了在启动时，编辑GRUB2，可以尝试下面的步骤

1. Immediately after the BIOS splash screen during boot, press and hold the SHIFT button. This will display you grub containing a list of kernels and recovery options 在启动过程中出现 BIOS 启动画面后，立即按住SHIFT按键。 这将显示包含内核和恢复选项列表的grub。

2. Press e to edit the first kernel displayed 按e编辑显示的第一个内核

3. Find the line ending with quiet splash. Add your boot option before these key words - i.e. so the line looks like […] nomodeset quiet splash 找到以 quiet splash 结尾的行。 在这些关键字之前添加您的引导选项 - 即该行看起来像 […] nomodeset quiet splash

4. Press CTRL + X to boot 按CTRL+X启动

参考文章

https://askubuntu.com/questions/38780/how-do-i-set-nomodeset-after-ive-already-installed-ubuntu https://www.dell.com/support/kbdoc/zh-cn/000123893/%E6%89%8B%E5%8A%A8-nomodeset-%E5%86%85%E6%A0%B8%E5%BC%95%E5%AF%BC-%E8%A1%8C%E9%80%89%E9%A1%B9-%E7%94%A8%E4%BA%8E-linux-%E5%BC%95%E5%AF%BC