[Cialug] /boot full -can't update

[David Bierce]

Ubuntu 14.04+ sets autoremove on kernels after some reasonable period.
Generally it is about 35MB of use per kernel version in /boot.

On Fri, Mar 20, 2015 at 12:52 AM, Zachary Kotlarek <zach at kotlarek.com>
wrote:

>
> > On Mar 19, 2015, at 9:31 PM, Tom Sellers <tomsellers2001 at yahoo.com>
> wrote:
> >
> > machine running Ubuntu 12.04 LTS
> >
> > recommended to run sudo apt-get -f install however this process fails
> with the following:
> >
> > linux-generic-pae : Depends: linux-headers-generic-pae (3.2.0.59.70) but
> 3.2.0.77.91 is installed
> > linux-image-generic-pae : Dependes: linux-image-3.2.0-59-generic-pae but
> it is not installed
> > E: Unmet dependencies. Try using -f.
> >
> > df -h shows:
> >
> > /dev/sda1                   228M  225M       0   100% /boot
> >
> > How do I free up enough space to allow the update to complete?
>
>
> Delete something from /boot.
>
> For reference on an Ubuntu 12.04 system I have 3 kernel versions installed
> and with all their support files (and some cruft) they come to a total of
> 91 MB in /boot, so I would expect 225 MB to be plenty of space for what you
> propose.
>
> Without knowing what’s on /boot on your system it’s hard to offer further
> advise. But there should only be a couple of hundred files in the whole
> tree, and only like a dozen outside of tiny grub modules. So it’s easy to
> look manually and see what’s taking up space. For example, this finds only
> 17 files on my system:
> find /boot -type f -not -path '/boot/grub/*' -print0 | xargs -0 ls -lah —
>
> Two general storage allocation notes:
>
> Be aware that files are not freed on disk until they are both deleted AND
> closed by all programs. If a program has an open file handle that file will
> remain allocated on-disk even after being unlink()ed, until it is closed.
> So if you delete things and it doesn’t clear up space be sure nothing still
> has the files open.
>
> You may be able to grow the filesystem and just ignore the problem for the
> cost of another 100 MB of disk allocation, depending on what FS it is and
> what type block device it’s on.
>
>         Zach
>
>
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