注意 ：我对当前正在运行的内核不感兴趣，但对于要引导的内核以及文件系统中的某个文件不感兴趣。
我要开始一个新的内核。 我准备了grub.conf并运行sudo update-grub 。 我几乎肯定我已经安装了正确的内核：
$ apt-cache show linux-image-generic-lts-trusty Package: linux-image-generic-lts-trusty Priority: optional Section: metapackages Installed-Size: 28 Maintainer: Ubuntu Kernel Team <[email protected]> Architecture: amd64 Source: linux-meta Version: 3.13.0.32.38 Depends: linux-image-generic Filename: pool/main/l/linux-meta/linux-image-generic-lts-trusty_3.13.0.32.38_amd64.deb Size: 1778 MD5sum: b8e5f06fb937b0132cb2fec4f996fdbf SHA1: cad821aedf442987d9de0eb16b93f9fdc761fc2f SHA256: 2a1a1f0073ca6864b985445bb0b012e5becc4cd44836ff5ab52cb84e221015f1 Description-en: Generic Linux kernel image Transistional package for upgrades from 12.04 to 14.04 (Precise to Trusty) Description-md5: 8a39d8556ef2a2dfbe5697d557d7c36a Bugs: https://bugs.launchpad.net/ubuntu/+filebug Origin: Ubuntu Supported: 5y Package: linux-image-generic-lts-trusty Priority: optional Section: metapackages Installed-Size: 27 Maintainer: Ubuntu Kernel Team <[email protected]> Architecture: amd64 Source: linux-meta Version: 3.13.0.24.28 Depends: linux-image-generic Filename: pool/main/l/linux-meta/linux-image-generic-lts-trusty_3.13.0.24.28_amd64.deb Size: 1782 MD5sum: 5cf768492732982e3bde545f519196dc SHA1: fdc5d833ca0f93ae5d1b1dbdb818285d5338fde4 SHA256: f11eb79a49640d161d9e7cdade80a9fad2f7b50880bf28097eaca30a8c0a8fbb Description-en: Generic Linux kernel image Transistional package for upgrades from 12.04 to 14.04 (Precise to Trusty) Description-md5: 8a39d8556ef2a2dfbe5697d557d7c36a Bugs: https://bugs.launchpad.net/ubuntu/+filebug Origin: Ubuntu Supported: 5y
所以内核是64位（ amd64 ）。 那么我会安装它：
$ sudo apt-get install linux-image-generic-lts-trusty
让我们来看看安装的是什么：
$ apt-cache depends linux-image-generic-lts-trusty linux-image-generic-lts-trusty Depends: linux-image-generic Conflicts: linux-image-generic-lts-trusty:i386 $ apt-cache depends linux-image-generic linux-image-generic Depends: linux-image-3.13.0-32-generic Depends: linux-image-extra-3.13.0-32-generic Depends: linux-firmware Conflicts: linux-image-generic:i386 $ dpkg -L linux-image-3.13.0-32-generic ... /boot/abi-3.13.0-32-generic /boot/vmlinuz-3.13.0-32-generic /boot/config-3.13.0-32-generic /boot/System.map-3.13.0-32-generic
我不喜欢那个-32 。 那是32位？ 可能不会，但是：
$ ls -l /boot/bzImage-* /boot/vmlinuz-* -rw-r--r-- 1 root root 7694800 Mar 18 16:48 /boot/bzImage-3.10.23-xxxx-std-ipv6-64 -rw------- 1 root root 5798112 Jul 15 06:29 /boot/vmlinuz-3.13.0-32-generic
我有另一个内核有一个非常明显的-64 ，我将尝试的内核有一个-32-generic 。 也许这并不意味着什么，但我想确保/boot/vmlinuz-3.13.0-32-generic是64位。 我如何validation？