我跑了sudo apt-get upgrade，我得到了这个：
The following packages have been kept back:
linux-generic-hwe-16.04 linux-headers-generic-hwe-16.04 linux-image-generic-hwe-16.04 linux-signed-generic-hwe-16.04 linux-signed-image-generic-hwe-16.04
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
我担心如果我运行sudo apt-get dist-upgrade某些东西可能会出错并且可能会弄乱我的 Ubuntu 安装。我在这里看到过类似的问题，但我认为它们与我的问题不同。我该怎么办 ？