[PLUG] No space left on device

[alan at clueserver.org]

> On Oct 24, 2017 5:07 PM, "John Jason Jordan" <johnxj at gmx.com> wrote:
>
> On Tue, 24 Oct 2017 10:23:55 -0700
> alan at clueserver.org dijo:
>
>>> I used Thunar to check Properties on everything in / and found
>>> nothing out of the ordinary. I need some command line tools to find
>>> the pig that is using all my space. Also I need to find out what is
>>> causing the pig to be so hungry. Suggestions?
>>
>>du -h --max-depth=1 /
>>
>>You can then look in the directory using the most space with the same
>>command until you find what you want. You might need to run it under
>>sudo to avoid the "cannot access directory" error messages.
>
> I did this and the only thing that looked suspicious was 55016
> for /media. I have a hunch that /media is where the problem is, like
> what if stuff was supposed to go to a device mounted there but instead
> it went to a folder in /media?
>
> This computer has two drives,
>
>         sdb 480GB partitioned as / 84G and the remainder as /home
>         sda 1GB, one partition, label Data, mounted at /media/jjj/Data
>
> However, there are also two external drives that are always mounted,
> Movies (14TB, USB) and Synology (16TB, NAS). I suspect that Movies is
> the problem. It is mounted at /media/jjj/Movies, but I think that there
> must be some movies there that are not on the drive. Perhaps I moved
> some movies to Movies when the drive was not actually mounted. The
> Synology is just a backup mirror of Movies (rsync).
>
> Unfortunately, Thunar just displays all the movies in Movies without
> telling me if they are really on the USB drive or whether they are
> on /media/jjj/Movies. There are over 1400 folders (one for each movie),
> so checking each one individually would be ridiculous. I need a more
> efficient way to figure this out. Any suggestions?
>
>
> Umount / disconnect the external drive  and then check to see if anything
> is still in the directory where the drive was mounted.

df -h

will show you what drives are mounted and how much space they have left.
(The -h flag is "human readable".)

perl -pe 's/^\s+//g' *.py