我以为 Ubuntu 中的常规更新会安装新内核版本。我注意到
$uname -r
3.13.0-24-generic
和
$dpkg -l | grep linux-image
ii linux-image-3.13.0-24-generic 3.13.0-24.47 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-27-generic 3.13.0-27.50 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-29-generic 3.13.0-29.53 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-30-generic 3.13.0-30.55 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-34-generic 3.13.0-34.60 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-35-generic 3.13.0-35.62 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-36-generic 3.13.0-36.63 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-37-generic 3.13.0-37.64 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-39-generic 3.13.0-39.66 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-40-generic 3.13.0-40.69 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-43-generic 3.13.0-43.72 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-44-generic 3.13.0-44.73 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-46-generic 3.13.0-46.79 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-48-generic 3.13.0-48.80 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-49-generic 3.13.0-49.83 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-3.13.0-51-generic 3.13.0-51.84 amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-24-generic 3.13.0-24.47 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-27-generic 3.13.0-27.50 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-29-generic 3.13.0-29.53 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-30-generic 3.13.0-30.55 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-34-generic 3.13.0-34.60 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-35-generic 3.13.0-35.62 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-36-generic 3.13.0-36.63 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-37-generic 3.13.0-37.64 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-39-generic 3.13.0-39.66 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-40-generic 3.13.0-40.69 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-43-generic 3.13.0-43.72 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-44-generic 3.13.0-44.73 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-46-generic 3.13.0-46.79 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-48-generic 3.13.0-48.80 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-49-generic 3.13.0-49.83 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-extra-3.13.0-51-generic 3.13.0-51.84 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii linux-image-generic 3.13.0.51.58 amd64 Generic Linux kernel image
知道为什么内核没有更新吗？
谢谢
编辑：我检查了 grub 配置并发现以下内容：
insmod gzio insmod part_msdos insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 79b97cb3-a4cc-48a6-afae-f0b5f052eec
else
search --no-floppy --fs-uuid --set=root 79b97cb3-a4cc-48a6-afae-f0b5f052eec4
fi
linux /vmlinuz-3.13.0-24-generic root=UUID=d58b8f4c-a995-433b-a117-7dc0e0335ee5 ro quiet splash $vt_handoff
initrd /initrd.img-3.13.0-24-generic
答案1
Linux 3.16 是最新版本Ubuntu 14.04 中的 Linux并且 Canonical 为其提供长期支持，而不是为用户提供最新可用版本。您可能需要更新系统才能接收它：
sudo apt-get update
sudo apt-get dist-upgrade
dist-upgrade不同之处upgrade在于它会更新那些可能被“阻止”的软件包，有时包括内核。目前，您正在使用最新的 3.13 内核，它仍会获得安全更新，但您必须dist-upgrade获得 3.16。
然而，在 Ubuntu 15.04 上，Ubuntu 上有最新版本是 3.19。如果您使用的是 Ubuntu 15.04，请再次使用上述方法进行更新。
如果你想使用非常最新的主线内核，你可以从这里- 滚动到底部查找最新版本。但是，您不应该在生产计算机上执行此操作，因为这些计算机可能存在更多错误，并且可能会破坏您的系统。
您还必须每次手动更新这些内容，因为没有自动更新方法。（这用过的作为 PPA，但现在您必须手动下载每个版本）。