he upgrade needs a total of 92.1 M free space on disk '/boot'. Please free at least an additional 27

当我们在ubuntu运行的时候,我们会遇到/boot目录空间不足的情况,这个时候,我们需要对内核进行一下清理,错误信息为:

he upgrade needs a total of 92.1 M free space on disk '/boot'. Please free at least an additional 27 MB....

这时,我们可以运行下面的命令:

cd /boot/dpkg -l | grep linux-imageuname -a  #查看你当前的内核版本sudo apt-get purge --remove linux-image-4.4.0-34-generic #换成你的一个不用的内核

就行了.

我的输出信息为:

eric@eric-Satellite-C850:~$ ls -s /boot/total 99010 1213 abi-4.4.0-34-generic           179 memtest86+.bin 1218 abi-4.4.0-87-generic           181 memtest86+.elf  186 config-4.4.0-34-generic        181 memtest86+_multiboot.bin  186 config-4.4.0-87-generic       3777 System.map-4.4.0-34-generic    1 grub                          3794 System.map-4.4.0-87-generic36909 initrd.img-4.4.0-34-generic   6882 vmlinuz-4.4.0-34-generic37361 initrd.img-4.4.0-87-generic   6930 vmlinuz-4.4.0-87-generic   12 lost+founderic@eric-Satellite-C850:~$ uname -aLinux eric-Satellite-C850 4.4.0-87-generic #110-Ubuntu SMP Tue Jul 18 12:55:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linuxeric@eric-Satellite-C850:~$ cd /boot/eric@eric-Satellite-C850:/boot$ lsabi-4.4.0-34-generic         memtest86+.binabi-4.4.0-87-generic         memtest86+.elfconfig-4.4.0-34-generic      memtest86+_multiboot.binconfig-4.4.0-87-generic      System.map-4.4.0-34-genericgrub                         System.map-4.4.0-87-genericinitrd.img-4.4.0-34-generic  vmlinuz-4.4.0-34-genericinitrd.img-4.4.0-87-generic  vmlinuz-4.4.0-87-genericlost+founderic@eric-Satellite-C850:/boot$ dpkg -l | grep linux-imageii  linux-image-4.4.0-34-generic                          4.4.0-34.53                                    amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMPii  linux-image-4.4.0-87-generic                          4.4.0-87.110                                   amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMPii  linux-image-extra-4.4.0-34-generic                    4.4.0-34.53                                    amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMPii  linux-image-extra-4.4.0-87-generic                    4.4.0-87.110                                   amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMPii  linux-image-generic                                   4.4.0.87.93                                    amd64        Generic Linux kernel imageeric@eric-Satellite-C850:/boot$ uname -aLinux eric-Satellite-C850 4.4.0-87-generic #110-Ubuntu SMP Tue Jul 18 12:55:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linuxeric@eric-Satellite-C850:/boot$ sudo apt-get purge --remove linux-image-4.4.0-34-generic [sudo] password for eric: Reading package lists... DoneBuilding dependency tree       Reading state information... DoneThe following packages will be REMOVED:  linux-image-4.4.0-34-generic* linux-image-extra-4.4.0-34-generic*0 upgraded, 0 newly installed, 2 to remove and 306 not upgraded.After this operation, 218 MB disk space will be freed.Do you want to continue? [Y/n] Y(Reading database ... 293915 files and directories currently installed.)Removing linux-image-extra-4.4.0-34-generic (4.4.0-34.53) ...run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericrun-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericupdate-initramfs: Generating /boot/initrd.img-4.4.0-34-genericrun-parts: executing /etc/kernel/postinst.d/pm-utils 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericrun-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericrun-parts: executing /etc/kernel/postinst.d/update-notifier 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericrun-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericGenerating grub configuration file ...Found linux image: /boot/vmlinuz-4.4.0-87-genericFound initrd image: /boot/initrd.img-4.4.0-87-genericFound linux image: /boot/vmlinuz-4.4.0-34-genericFound initrd image: /boot/initrd.img-4.4.0-34-genericFound memtest86+ image: /memtest86+.elfFound memtest86+ image: /memtest86+.binFound Windows 10 (loader) on /dev/sda1Found Windows 10 (loader) on /dev/sdb1Found Ubuntu 14.04.1 LTS (14.04) on /dev/sdb7donePurging configuration files for linux-image-extra-4.4.0-34-generic (4.4.0-34.53) ...Removing linux-image-4.4.0-34-generic (4.4.0-34.53) ...Examining /etc/kernel/postrm.d .run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericupdate-initramfs: Deleting /boot/initrd.img-4.4.0-34-genericrun-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericGenerating grub configuration file ...Found linux image: /boot/vmlinuz-4.4.0-87-genericFound initrd image: /boot/initrd.img-4.4.0-87-genericFound memtest86+ image: /memtest86+.elfFound memtest86+ image: /memtest86+.binFound Windows 10 (loader) on /dev/sda1Found Windows 10 (loader) on /dev/sdb1Found Ubuntu 14.04.1 LTS (14.04) on /dev/sdb7doneThe link /vmlinuz.old is a damaged linkRemoving symbolic link vmlinuz.old  you may need to re-run your boot loader[grub]The link /initrd.img.old is a damaged linkRemoving symbolic link initrd.img.old  you may need to re-run your boot loader[grub]Purging configuration files for linux-image-4.4.0-34-generic (4.4.0-34.53) ...Examining /etc/kernel/postrm.d .run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericrun-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.4.0-34-generic /boot/vmlinuz-4.4.0-34-genericeric@eric-Satellite-C850:/boot$ uname -aLinux eric-Satellite-C850 4.4.0-87-generic #110-Ubuntu SMP Tue Jul 18 12:55:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linuxeric@eric-Satellite-C850:/boot$ dpkg -l | grep linux-imageii  linux-image-4.4.0-87-generic                          4.4.0-87.110                                   amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMPii  linux-image-extra-4.4.0-87-generic                    4.4.0-87.110                                   amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMPii  linux-image-generic                                   4.4.0.87.93                                    amd64        Generic Linux kernel image

大功告成

参考文献

[1].Can't upgrade due to low disk space on /boot. https://askubuntu.com/questions/142926/cant-upgrade-due-to-low-disk-space-on-boot

[2].ubuntu升级“ /boot空间不足”解决方法. http://blog.csdn.net/xk_t9_98568/article/details/40624927