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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,124 @@ # Safest way to clean up boot partition - Ubuntu 14.04LTS-x64 [Reference](http://askubuntu.com/questions/345588/what-is-the-safest-way-to-clean-up-boot-partition) ## Case I: if /boot is not 100% full and apt is working ### 1. Check the current kernel version ``` $ uname -r ``` It will shows the list like below: ``` 3.19.0-64-generic ``` ### 2. Remove the OLD kernels #### 2.a. List the old kernel ``` $ sudo dpkg --list 'linux-image*'|awk '{ if ($1=="ii") print $2}'|grep -v `uname -r` ``` You will get the list of images something like below: ``` linux-image-3.19.0-25-generic linux-image-3.19.0-56-generic linux-image-3.19.0-58-generic linux-image-3.19.0-59-generic linux-image-3.19.0-61-generic linux-image-3.19.0-65-generic linux-image-extra-3.19.0-25-generic linux-image-extra-3.19.0-56-generic linux-image-extra-3.19.0-58-generic linux-image-extra-3.19.0-59-generic linux-image-extra-3.19.0-61-generic ``` #### 2.b. Now its time to remove old kernel one by one as ``` $ sudo apt-get purge linux-image-3.19.0-25-generic $ sudo apt-get purge linux-image-3.19.0-56-generic $ sudo apt-get purge linux-image-3.19.0-58-generic $ sudo apt-get purge linux-image-3.19.0-59-generic $ sudo apt-get purge linux-image-3.19.0-61-generic $ sudo apt-get purge linux-image-3.19.0-65-generic ``` When you're done removing the older kernels, you can run this to remove ever packages you won't need anymore: ``` $ sudo apt-get autoremove ``` And finally you can run this to update grub kernel list: ``` $ sudo update-grub ``` ## Case II: Can't Use `apt` i.e. /boot is 100% full <strong style="color:red">NOTE: this is only if you can't use apt to clean up due to a 100% full /boot</strong> ### 1. Get the list of kernel images Get the list of kernel images and determine what you can do without. This command will show installed kernels except the currently running one ``` $ sudo dpkg --list 'linux-image*'|awk '{ if ($1=="ii") print $2}'|grep -v `uname -r` ``` You will get the list of images somethign like below: ``` linux-image-3.19.0-25-generic linux-image-3.19.0-56-generic linux-image-3.19.0-58-generic linux-image-3.19.0-59-generic linux-image-3.19.0-61-generic linux-image-3.19.0-65-generic linux-image-extra-3.19.0-25-generic linux-image-extra-3.19.0-56-generic linux-image-extra-3.19.0-58-generic linux-image-extra-3.19.0-59-generic linux-image-extra-3.19.0-61-generic ``` ### 2. Prepare Delete Craft a command to delete all files in /boot for kernels that don't matter to you using brace expansion to keep you sane. Remember to exclude the current and two newest kernel images. From above Example, it's ``` sudo rm -rf /boot/*-3.19.0-{25,56,58,59,61,65}-* ``` ### 3. Clean up what's making apt grumpy about a partial install. ``` sudo apt-get -f install ``` ### 4. Autoremove Finally, autoremove to clear out the old kernel image packages that have been orphaned by the manual boot clean. ``` sudo apt-get autoremove ``` ### 5. Update Grub ``` sudo update-grub ``` ### 6. Now you can update, install packages ``` sudo apt-get update ```