最近我需要在 Hyper-V 下使用 Ubuntu 18.04 TLS 快速设置全新的 VM（这不是我通常的工具箱，但这次我不能使用 Hyper-V 的任何东西）。
好的，我完成了安装（我过去在初始安装菜单中选择“hwe”安装），在尝试找到使用 Hyper-V 集成的方法时，我发现我需要做这个神奇的事情：
echo 'hv_vmbus' >> /etc/initramfs-tools/modules
echo 'hv_storvsc' >> /etc/initramfs-tools/modules
echo 'hv_blkvsc' >> /etc/initramfs-tools/modules
echo 'hv_netvsc' >> /etc/initramfs-tools/modules
apt -y install linux-virtual linux-cloud-tools-virtual linux-tools-virtual
update-initramfs -u
好的，我这样做了，一切都正常，但如何找出哪些内核和软件包我不需要保留，哪些我可以永久删除？你看，现在我有很多内核软件包，我知道我不需要其中的大多数：
# dpkg -l | grep linux
ii console-setup-linux 1.178ubuntu2.9 all Linux specific part of console-setup
ii libselinux1:amd64 2.7-2build2 amd64 SELinux runtime shared libraries
ii linux-base 4.5ubuntu1 all Linux image base package
ii linux-cloud-tools-4.15.0-91 4.15.0-91.92 amd64 Linux kernel version specific cloud tools for version 4.15.0-91
ii linux-cloud-tools-4.15.0-91-generic 4.15.0-91.92 amd64 Linux kernel version specific cloud tools for version 4.15.0-91
ii linux-cloud-tools-common 4.15.0-91.92 all Linux kernel version specific cloud tools for version 4.15.0
ii linux-cloud-tools-virtual 4.15.0.91.83 amd64 Virtual Linux kernel cloud tools
ii linux-firmware 1.173.16 all Firmware for Linux kernel drivers
ii linux-generic-hwe-18.04 5.3.0.42.99 amd64 Complete Generic Linux kernel and headers
ii linux-headers-4.15.0-91 4.15.0-91.92 all Header files related to Linux kernel version 4.15.0
ii linux-headers-4.15.0-91-generic 4.15.0-91.92 amd64 Linux kernel headers for version 4.15.0 on 64 bit x86 SMP
ii linux-headers-5.3.0-42 5.3.0-42.34~18.04.1 all Header files related to Linux kernel version 5.3.0
ii linux-headers-5.3.0-42-generic 5.3.0-42.34~18.04.1 amd64 Linux kernel headers for version 5.3.0 on 64 bit x86 SMP
ii linux-headers-generic 4.15.0.91.83 amd64 Generic Linux kernel headers
ii linux-headers-generic-hwe-18.04 5.3.0.42.99 amd64 Generic Linux kernel headers
ii linux-headers-virtual 4.15.0.91.83 amd64 Virtual Linux kernel headers
ii linux-image-4.15.0-91-generic 4.15.0-91.92 amd64 Signed kernel image generic
ii linux-image-5.3.0-42-generic 5.3.0-42.34~18.04.1 amd64 Signed kernel image generic
ii linux-image-generic-hwe-18.04 5.3.0.42.99 amd64 Generic Linux kernel image
ii linux-image-virtual 4.15.0.91.83 amd64 Virtual Linux kernel image
ii linux-modules-4.15.0-91-generic 4.15.0-91.92 amd64 Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP
ii linux-modules-5.3.0-42-generic 5.3.0-42.34~18.04.1 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP
ii linux-modules-extra-5.3.0-42-generic 5.3.0-42.34~18.04.1 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP
ii linux-tools-4.15.0-91 4.15.0-91.92 amd64 Linux kernel version specific tools for version 4.15.0-91
ii linux-tools-4.15.0-91-generic 4.15.0-91.92 amd64 Linux kernel version specific tools for version 4.15.0-91
ii linux-tools-common 4.15.0-91.92 all Linux kernel version specific tools for version 4.15.0
ii linux-tools-virtual 4.15.0.91.83 amd64 Virtual Linux kernel tools
ii linux-virtual 4.15.0.91.83 amd64 Minimal Generic Linux kernel and headers
ii util-linux 2.31.1-0.4ubuntu3.5 amd64 miscellaneous system utilities
请提供建议，因为这是我多年来一直不太明白的事情。