Trace:
wiki:student:how_to_clear_a_full_boot_partition
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
wiki:student:how_to_clear_a_full_boot_partition [2019/03/19 16:06] cwday |
wiki:student:how_to_clear_a_full_boot_partition [2019/03/21 14:56] (current) mchamber |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | ======How to Clear a Full Boot Partition====== | + | <title>How to Clear a Full Boot Partition</title> |
| Ubuntu usually creates a separate /boot partition for storing Linux kernels. This isolates the kernels from the rest of the operating system, which helps make the system more stable. However, as it is usually a small partition (> 200 MB), it can fill up with old kernels. While keeping a couple old kernels around can be advisable, so as to be able to roll back to old kernels if a new one proves unstable (an unusual occurrence), it is not necessary to keep more than one or two. | Ubuntu usually creates a separate /boot partition for storing Linux kernels. This isolates the kernels from the rest of the operating system, which helps make the system more stable. However, as it is usually a small partition (> 200 MB), it can fill up with old kernels. While keeping a couple old kernels around can be advisable, so as to be able to roll back to old kernels if a new one proves unstable (an unusual occurrence), it is not necessary to keep more than one or two. | ||
| Line 13: | Line 13: | ||
| * <code>sudo dpkg --force-all -P linux-image-3.13.0-32-generic</code> | * <code>sudo dpkg --force-all -P linux-image-3.13.0-32-generic</code> | ||
| * You will probably need to use the same command to delete the ''linux-image-extra'' version of the corresponding kernels to fix dependency problems. | * You will probably need to use the same command to delete the ''linux-image-extra'' version of the corresponding kernels to fix dependency problems. | ||
| - | - Once you are certain you have enough free space fix any existing dependency problems. Make sure this command does not try to reinstall the kernels you just removed. If it does, you need to remove the ''linux-image-extra'' packages for those kernels (there may be other such dependencies, check online). | + | - Once you are certain you have enough free space fix any existing dependency problems. |
| * <code>sudo apt-get install -f</code> | * <code>sudo apt-get install -f</code> | ||
| + | * //Make sure this command does not try to reinstall the kernels you just removed.// If it does, you need to remove the ''linux-image-extra'' packages for those kernels (there may be other such dependencies, check online). | ||
| - Once you've got any dependency issues resolved, run **''sudo apt-get autoremove''** to remove the other old kernels. | - Once you've got any dependency issues resolved, run **''sudo apt-get autoremove''** to remove the other old kernels. | ||
| * As an alternative to ''autoremove'', you try the following command, though using a low-level utility such as dpkg is not necessarily recommended. It will remove all kernels except the one currently running. | * As an alternative to ''autoremove'', you try the following command, though using a low-level utility such as dpkg is not necessarily recommended. It will remove all kernels except the one currently running. | ||
| * <WRAP prewrap><code>sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve "$(uname -r | sed -r 's/-[a-z]+//)")</code></WRAP> | * <WRAP prewrap><code>sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve "$(uname -r | sed -r 's/-[a-z]+//)")</code></WRAP> | ||
| - Odds are, there's a new kernel waiting to be installed. Once you've done all this to clear out your ''/boot'' partition, run **''apt-get update''** and **''apt-get upgrade''** to update your system (including any new kernels). | - Odds are, there's a new kernel waiting to be installed. Once you've done all this to clear out your ''/boot'' partition, run **''apt-get update''** and **''apt-get upgrade''** to update your system (including any new kernels). | ||
wiki/student/how_to_clear_a_full_boot_partition.1553033219.txt.gz · Last modified: 2019/03/19 16:06 by cwday