File system bafflement

[Paul B]

What is the output of:
df -h
cat /etc/fstab
cat /dev/disk/by-id



On Tue, Sep 2, 2014 at 3:12 AM, R Kimber <richardkimber at btinternet.com>
wrote:

> I'm at a loss to understand what's going on on my system.  I keep getting
> messages that the root filesystem is full.  Since the entire system is
> contained in / I'm not clear what this means.  Does it just refer to the
> top directory level, or does it include subdirectories apart from those
> with their own partitions, or does it refer to the whole lot?
>
> The disk usage analyser also claims that /media contains 2.4 TB and is is
> "96% full", but /media surely is only the mountpoint for other disks. There
> are, inter alia, two 2TB disks mounted there. The disk usage analyzer says
> they are 49.9% used, while df says they are 66% used.
>
> The system is also a bit slow, though there's plenty of swap space
> available.
>
> Yesterday I cleared the apt cache, and the wastebin, and removed some
> kernels, and reduced / usage to about 84%, but today it's full again. It's
> hard to see where the problem lies since I've not done anything that
> involves the / partition that I'm aware of.  Though I noticed that an
> external USB disk had disk errors, which e2fsck corrected (Free blocks
> count wrong - maybe the disk is failing) - does this have anything to do
> with it?
>
> All the following have their own separate partitions:
> /usr, /var, /tmp, /home, /usr/local
> and df reports that they are all less than 50% full
>
> The size of the root partition is 4GB, and the top level directories that
> do not have their own partitions amount to just over 1GB
>
> My system has 4GB of memory and is running 14.04 (3.13.0-35-generic) that
> was upgraded from 12.04LTS.  I'm using the mate desktop.
>
> I'd appreciate suggestions as to what the problem might be.
>
> - Richard.
> --
> Richard Kimber
>
>
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