Ubuntu 删除多余内核

最新推荐文章于 2023-12-24 23:26:11 发布

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最新推荐文章于 2023-12-24 23:26:11 发布

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分类专栏： Ubuntu 文章标签： ubuntu 内核

本文链接：https://blog.youkuaiyun.com/yitengtongweishi/article/details/74923324

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本文介绍如何在Ubuntu系统中查看已安装的内核版本列表、确定当前正在使用的内核版本及如何删除不再需要的旧内核版本。此外，还介绍了更新grub配置文件的方法。

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查看系统内存在的内核版本列表：

madara@Madara-PC:~$ sudo dpkg --get-selections | grep linux
[sudo] password for madara: 
libselinux1:amd64				install
linux-firmware					install
linux-generic-lts-wily				install
linux-headers-4.2.0-41				install
linux-headers-4.2.0-41-generic			install
linux-headers-4.2.0-42				install
linux-headers-4.2.0-42-generic			install
linux-headers-generic-lts-wily			install
linux-image-4.2.0-41-generic			install
linux-image-4.2.0-42-generic			install
linux-image-extra-4.2.0-41-generic		install
linux-image-extra-4.2.0-42-generic		install
linux-image-generic-lts-wily			install
linux-libc-dev:amd64				install
linux-sound-base				install
pptp-linux					install
syslinux					install
syslinux-common					install
syslinux-legacy					install
util-linux					install

查看当前Ubuntu系统使用的内核版本

madara@Madara-PC:~$ uname -r
4.2.0-42-generic

删除多余内核

madara@Madara-PC:~$ sudo apt-get autoremove --purge linux-headers-4.2.0-41 linux-image-4.2.0-41-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED
  linux-headers-4.2.0-41* linux-headers-4.2.0-41-generic*
  linux-image-4.2.0-41-generic* linux-image-extra-4.2.0-41-generic*
0 to upgrade, 0 to newly install, 4 to remove and 0 not to upgrade.
After this operation, 295 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 202891 files and directories currently installed.)
Removing linux-headers-4.2.0-41-generic (4.2.0-41.48~14.04.1) ...
Removing linux-headers-4.2.0-41 (4.2.0-41.48~14.04.1) ...
Removing linux-image-extra-4.2.0-41-generic (4.2.0-41.48~14.04.1) ...
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
update-initramfs: Generating /boot/initrd.img-4.2.0-41-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.2.0-42-generic
Found initrd image: /boot/initrd.img-4.2.0-42-generic
Found linux image: /boot/vmlinuz-4.2.0-41-generic
Found initrd image: /boot/initrd.img-4.2.0-41-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
Found Windows 7 (loader) on /dev/sda1
done
Purging configuration files for linux-image-extra-4.2.0-41-generic (4.2.0-41.48~14.04.1) ...
Removing linux-image-4.2.0-41-generic (4.2.0-41.48~14.04.1) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
update-initramfs: Deleting /boot/initrd.img-4.2.0-41-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.2.0-42-generic
Found initrd image: /boot/initrd.img-4.2.0-42-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
Found Windows 7 (loader) on /dev/sda1
done
The link /vmlinuz.old is a damaged link
Removing symbolic link vmlinuz.old 
 you may need to re-run your boot loader[grub]
The link /initrd.img.old is a damaged link
Removing symbolic link initrd.img.old 
 you may need to re-run your boot loader[grub]
Purging configuration files for linux-image-4.2.0-41-generic (4.2.0-41.48~14.04.1) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.2.0-41-generic /boot/vmlinuz-4.2.0-41-generic

更新grub

madara@Madara-PC:~$ sudo update-grub
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.2.0-42-generic
Found initrd image: /boot/initrd.img-4.2.0-42-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
Found Windows 7 (loader) on /dev/sda1
done