[xubuntu-users] "Not enough space on disk /boot"

[Petter Adsen]

On Sat, 23 May 2015 22:55:38 +0900
Thomas Blasejewicz <nyuwa at hb.tp1.jp> wrote:

> Good evening
> In more or less regular intervalls, when the computer tries to
> "update", I get the following error message:
> 
> "Not enough free space.
> The upgrade needs a total of 81.9 MB of free space on the disk /boot.
> Please free at least an additional of 20.4 MB of space on the
> disk /boot. Empty your trash and remove temporary packages of former
> installation using sudo apt-get clean."
> 
> File manager shows:
> /boot = total space = 248.8 MB
> used space  169.5 MB = 75%
> 
> I did not set this myself. However, I do recall using "entire disk + 
> LVM" during setup and read somewhere, this might be problem.

LVM did not cause this, it can actually provide you with a really nice
way to fix situations like these.

> What is this all about, and is there a way to make all this
> "automatic"?

All that should really be in /boot are kernels (and related things,
like initrd). You may have a lot of old ones installed.

Ubuntu should clean up old kernels for itself. Open a terminal, and run
"sudo apt-get autoremove". This should clean out old kernels (and other
things that are no longer needed).

Maybe there is some old cruft there, placed there by mistake? If you
give us the output of "ls -lah /boot", we can tell you exactly what
commands to run in order to free up some space.

Also, since you are using LVM, there is another way of doing this, but
let's focus on the easiest way first - run the first command above, and
see if things work for you now. If they don't, give us the output of
the second, and we'll go from there.

DO NOT START RANDOMLY DELETING KERNEL PACKAGES IF YOU ARE NOT TOTALLY
SURE WHAT YOU ARE DOING! If you decide to use Synaptic to get rid of old
kernels, then be careful, and make sure to leave (at least) the latest
working one, or you will be unable to boot.

Petter

-- 
"I'm ionized"
"Are you sure?"
"I'm positive."
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