apt升级到18.04.2后仍在以前的4.15内核上

TL; DR

从18.04.1升级到18.04.2后，我无法强迫我的ubuntu服务器将内核升级到相应的4.18版本。

历史背景

昨天我跑步

sudo apt upgrade

并且在其中一个次要文件上发生了冲突（我认为是/etc/issue.net）。不幸的是，在解决该冲突期间，我不小心关闭了腻子...当我重新登录时，我在apt数据库上有一个锁。我重新启动服务器并执行

sudo dpkg --configure -a

然后sudo apt upgrade一切顺利。重新启动服务器后，在欢迎消息中看到系统已更新，但内核仍为4.15版本。

Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)

到目前为止我尝试过的

我尝试了可以​​在Internet上找到的所有解决方案，但没有一个帮助您：

rychu@RychuSRV:~$ sudo apt update
Hit:1 http://ppa.launchpad.net/certbot/certbot/ubuntu bionic InRelease
Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease
Get:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Hit:4 https://download.docker.com/linux/ubuntu bionic InRelease
Get:5 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Fetched 177 kB in 1s (161 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.

rychu@RychuSRV:~$ sudo apt-get install linux-image-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-image-generic is already the newest version (4.15.0.45.47).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

rychu@RychuSRV:~$ sudo apt-get install linux-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-generic is already the newest version (4.15.0.45.47).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

rychu@RychuSRV:~$ uname -r && dpkg --get-selections linux
4.15.0-45-generic
linux-base                                      install
linux-firmware                                  install
linux-generic                                   install
linux-headers-4.15.0-45                         install
linux-headers-4.15.0-45-generic                 install
linux-headers-generic                           install
linux-image-4.15.0-23-generic                   deinstall
linux-image-4.15.0-29-generic                   deinstall
linux-image-4.15.0-30-generic                   deinstall
linux-image-4.15.0-32-generic                   deinstall
linux-image-4.15.0-33-generic                   deinstall
linux-image-4.15.0-34-generic                   deinstall
linux-image-4.15.0-36-generic                   deinstall
linux-image-4.15.0-38-generic                   deinstall
linux-image-4.15.0-39-generic                   deinstall
linux-image-4.15.0-42-generic                   deinstall
linux-image-4.15.0-43-generic                   install
linux-image-4.15.0-44-generic                   install
linux-image-4.15.0-45-generic                   install
linux-image-generic                             install
linux-modules-4.15.0-23-generic                 deinstall
linux-modules-4.15.0-29-generic                 deinstall
linux-modules-4.15.0-30-generic                 deinstall
linux-modules-4.15.0-32-generic                 deinstall
linux-modules-4.15.0-33-generic                 deinstall
linux-modules-4.15.0-34-generic                 deinstall
linux-modules-4.15.0-36-generic                 deinstall
linux-modules-4.15.0-38-generic                 deinstall
linux-modules-4.15.0-39-generic                 deinstall
linux-modules-4.15.0-42-generic                 deinstall
linux-modules-4.15.0-43-generic                 install
linux-modules-4.15.0-44-generic                 install
linux-modules-4.15.0-45-generic                 install
linux-modules-extra-4.15.0-23-generic           deinstall
linux-modules-extra-4.15.0-29-generic           deinstall
linux-modules-extra-4.15.0-30-generic           deinstall
linux-modules-extra-4.15.0-32-generic           deinstall
linux-modules-extra-4.15.0-33-generic           deinstall
linux-modules-extra-4.15.0-34-generic           deinstall
linux-modules-extra-4.15.0-36-generic           deinstall
linux-modules-extra-4.15.0-38-generic           deinstall
linux-modules-extra-4.15.0-39-generic           deinstall
linux-modules-extra-4.15.0-42-generic           deinstall
linux-modules-extra-4.15.0-43-generic           install
linux-modules-extra-4.15.0-44-generic           install
linux-modules-extra-4.15.0-45-generic           install

rychu@RychuSRV:~$ sudo update-grub
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.15.0-45-generic
Found initrd image: /boot/initrd.img-4.15.0-45-generic
Found linux image: /boot/vmlinuz-4.15.0-44-generic
Found initrd image: /boot/initrd.img-4.15.0-44-generic
Found linux image: /boot/vmlinuz-4.15.0-43-generic
Found initrd image: /boot/initrd.img-4.15.0-43-generic
Adding boot menu entry for EFI firmware configuration
done

rychu@RychuSRV:~$ sudo reboot

和...

Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-45-generic x86_64)
rychu@RychuSRV:~$ uname -r
4.15.0-45-generic

我也试过

rychu@RychuSRV:~$ sudo do-release-upgrade
Checking for a new Ubuntu release
There is no development version of an LTS available.
To upgrade to the latest non-LTS develoment release
set Prompt=normal in /etc/update-manager/release-upgrades.

请帮忙。

您可以通过运行以下命令来升级内核并将其升级到将来的Ubuntu版本：

sudo apt install linux-generic-hwe-18.04

到目前为止，它将安装4.18内核。

我认为您应该很高兴留在4.15内核系列中

通过Ubuntu邮件论坛中的对话，Adam Conrad的回答，

Nio Wiklund在2019年2月5日星期二11:53:22 AM +0100写道：>

将安装的系统保留在该内核系列中（与以前的LTS发行版一样），或者将自动升级到Cosmic内核系列，并进一步升级到下一个LTS内核系列：

如果先安装18.04或18.04.1介质，然后再进行升级，则将继续使用GA内核和Xorg系列。如果使用18.04.2或更高版本的介质进行安装，则将使用滚动HWE内核和X系列。

... 亚当

如果您确实要升级到新的内核系列，则必须升级硬件支持堆栈，这是有风险的。如果没有完整的备份，绝对不要这样做，以便在升级出错时可以轻松地（？）恢复系统。

看到此链接：wiki.ubuntu.com/Kernel/LTSEnablementStack