清除OpenVZ容器中不需要的内核映像
我知道有无数次问过类似的问题，但到目前为止我还没能找到适合自己案例的问题。
我在OpenVZ容器中运行一个32位，14.04服务器，它提供了这个内核：
$ uname -r 2.6.32-042stab116.2 不确定它是如何/为什么开始的，但是apt一直在尝试（并且失败）升级到3.13系列，结果如下：
$ dpkg -l |grep linux ii libselinux1:i386 2.2.2-1ubuntu0.1 i386 SELinux runtime shared libraries ii linux-firmware 1.127.22 all Firmware for Linux kernel drivers ii linux-headers-3.13.0-100 3.13.0-100.147 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-100-generic 3.13.0-100.147 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-101 3.13.0-101.148 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-101-generic 3.13.0-101.148 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-91 3.13.0-91.138 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-91-generic 3.13.0-91.138 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-92 3.13.0-92.139 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-92-generic 3.13.0-92.139 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-93 3.13.0-93.140 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-93-generic 3.13.0-93.140 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-96 3.13.0-96.143 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-96-generic 3.13.0-96.143 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP iF linux-image-3.13.0-92-generic 3.13.0-92.139 i386 Linux kernel image for version 3.13.0 on 32 bit x86 SMP iF linux-image-3.13.0-93-generic 3.13.0-93.140 i386 Linux kernel image for version 3.13.0 on 32 bit x86 SMP iF linux-image-3.13.0-96-generic 3.13.0-96.143 i386 Linux kernel image for version 3.13.0 on 32 bit x86 SMP rH linux-image-extra-3.13.0-100-generic 3.13.0-100.147 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP rH linux-image-extra-3.13.0-101-generic 3.13.0-101.148 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP rH linux-image-extra-3.13.0-92-generic 3.13.0-92.139 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP iU linux-image-extra-3.13.0-93-generic 3.13.0-93.140 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP iU linux-image-extra-3.13.0-96-generic 3.13.0-96.143 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP ii linux-libc-dev:i386 3.13.0-101.148 i386 Linux Kernel Headers for development ii syslinux 3:4.05+dfsg-6+deb8u1 i386 collection of boot loaders ii syslinux-common 3:4.05+dfsg-6+deb8u1 all collection of boot loaders (common files) ii util-linux 2.20.1-5.1ubuntu20.7 i386 Miscellaneous system utilities
我的理解是内核完全由OpenVZ主机负责，并且我被建议简单地删除所有这些图像 ，无论如何系统都会忽略这些图像 。 但是，我完全删除软件包的所有尝试都失败了各种错误消息。
当我尝试显式清除所有不需要的linux *包时发生了这种情况 。
使用aptitude而不是apt-get摆脱了一些包，并将所有剩余图像的状态更改为pH ，但没有解决问题：
$ dpkg -l |grep linux ii libselinux1:i386 2.2.2-1ubuntu0.1 i386 SELinux runtime shared libraries ii linux-firmware 1.127.22 all Firmware for Linux kernel drivers ii linux-headers-3.13.0-100 3.13.0-100.147 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-100-generic 3.13.0-100.147 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-91 3.13.0-91.138 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-91-generic 3.13.0-91.138 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-92 3.13.0-92.139 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-92-generic 3.13.0-92.139 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-93 3.13.0-93.140 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-93-generic 3.13.0-93.140 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP ii linux-headers-3.13.0-96 3.13.0-96.143 all Header files related to Linux kernel version 3.13.0 ii linux-headers-3.13.0-96-generic 3.13.0-96.143 i386 Linux kernel headers for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-100-generic 3.13.0-100.147 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-101-generic 3.13.0-101.148 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-92-generic 3.13.0-92.139 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-93-generic 3.13.0-93.140 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-96-generic 3.13.0-96.143 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP ii linux-libc-dev:i386 3.13.0-101.148 i386 Linux Kernel Headers for development ii syslinux 3:4.05+dfsg-6+deb8u1 i386 collection of boot loaders ii syslinux-common 3:4.05+dfsg-6+deb8u1 all collection of boot loaders (common files) ii util-linux 2.20.1-5.1ubuntu20.7 i386 Miscellaneous system utilities
我在上面的3.13包列表中再次运行aptitude，这次所有标题都消失了，但“额外”图像仍然存在。
$ dpkg -l |grep linux pH linux-image-extra-3.13.0-100-generic 3.13.0-100.147 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-101-generic 3.13.0-101.148 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-92-generic 3.13.0-92.139 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-93-generic 3.13.0-93.140 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP pH linux-image-extra-3.13.0-96-generic 3.13.0-96.143 i386 Linux kernel extra modules for version 3.13.0 on 32 bit x86 SMP [...]
我又给了它， 这是输出 。 看起来为了清除这些额外的图像（具有明显的未满足的依赖性，因为相应的图像已经消失），缺少aptitude所需的一些文件：
depmod: FATAL: could not load /boot/System.map-3.13.0-100-generic: No such file or directory