Linux lvzhihao 4.10.0-27-generic #30~16.04.2-Ubuntu SMP Thu Jun 29 16:07:46 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
lvzhihao@lvzhihao:/boot$ dpkg --get-selections|grep linux-image
linux-image-4.10.0-27-generic           install
linux-image-4.10.0-28-generic           install
linux-image-4.8.0-36-generic            deinstall
linux-image-4.8.0-41-generic            deinstall
linux-image-4.8.0-45-generic            deinstall
linux-image-4.8.0-46-generic            install
linux-image-4.8.0-49-generic            install
linux-image-4.8.0-52-generic            install
linux-image-4.8.0-54-generic            install
linux-image-4.8.0-56-generic            install
linux-image-4.8.0-58-generic            install
linux-image-extra-4.10.0-27-generic     install
linux-image-extra-4.10.0-28-generic     install
linux-image-extra-4.8.0-36-generic      deinstall
linux-image-extra-4.8.0-41-generic      deinstall
linux-image-extra-4.8.0-45-generic      deinstall
linux-image-extra-4.8.0-46-generic      install
linux-image-extra-4.8.0-49-generic      install
linux-image-extra-4.8.0-52-generic      install
linux-image-extra-4.8.0-54-generic      install
linux-image-extra-4.8.0-56-generic      install
linux-image-extra-4.8.0-58-generic      install
linux-image-generic-hwe-16.04           install

lvzhihao@lvzhihao:/boot$ sudo apt-get remove linux-image-4.8.*

由于我的系統(tǒng)版本是4.10.0-27-generic的
而boot中存放了一堆4.8.0-54-generic所以就通過(guò)命令清除了

sudo apt-get remove linux-image-4.8.*

你可以對(duì)比一下不需要什么版本，就把它給卸載掉就行了，試試吧！