Ubuntu更新时遇到/boot空间不足

经常升级Linux内核，导致更新时警告/boot分区空间不足。这是以为多次升级内核后，导致内核版本太多，清理一下没用的内核文件就行了。 dpkg -l 'linux-image-*' | grep '

经常升级Linux内核，导致更新时警告/boot分区空间不足。这是以为多次升级内核后，导致内核版本太多，清理一下没用的内核文件就行了。

dpkg -l 'linux-image-*' | grep '^ii'或dpkg --get-selections |grep linux-image

ii  linux-image-4.4.0-21-generic       4.4.0-21.37  amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMPii  linux-image-4.4.0-22-generic       4.4.0-22.40  amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMPii  linux-image-4.4.0-23-generic       4.4.0-23.41  amd64        Linux kernel image for version 4.4.0 on 64 bit x86 SMPii  linux-image-extra-4.4.0-21-generic 4.4.0-21.37  amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMPii  linux-image-extra-4.4.0-22-generic 4.4.0-22.40  amd64        Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP

linux-image-4.4.0-22-generic            installlinux-image-4.4.0-23-generic            installlinux-image-extra-4.4.0-22-generic        installlinux-image-extra-4.4.0-23-generic        installlinux-image-generic                install

还可以查看

ls /boot

abi-4.4.0-22-generic     grub                         System.map-4.4.0-22-genericabi-4.4.0-23-generic     initrd.img-4.4.0-22-generic  System.map-4.4.0-23-genericconfig-4.4.0-22-generic  initrd.img-4.4.0-23-generic  vmlinuz-4.4.0-22-genericconfig-4.4.0-23-generic  lost+found                   vmlinuz-4.4.0-23-generic

查看当前启动的内核

uname -a

Linux gen8 4.4.0-23-generic #41-Ubuntu SMP Mon May 16 23:04:25 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

删除旧内核

sudo apt purge linux-image-4.4.0-21-generic

Do you want to continue? [Y/n] y

这时空间足够了应该自动一便更新了内核

 

清楚下剩余的，会删除linux-headers-4.4.0-21 linux-headers-4.4.0-21-generic这两个

sudo apt autoremove

Reading package lists... DoneBuilding dependency tree       Reading state information... DoneThe following packages will be REMOVED:  linux-headers-4.4.0-21 linux-headers-4.4.0-21-generic0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.After this operation, 77.5 MB disk space will be freed.Do you want to continue? [Y/n] y(Reading database ... 125503 files and directories currently installed.)Removing linux-headers-4.4.0-21-generic (4.4.0-21.37) ...

参考：http://blog.csdn.net/zht666/article/details/8776316