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I have seen some questions and I know that Ubuntu reserves 5% of filesystem to root. Believe me this is not the case.

I was moving some files from my home folder to another partition and I had to cancel the copying process due to some reason (the copy didn't stop abruptly, I cancelled it). Now when I try to move the remaining files I get error Error opening file '/media/sda5/Android/carbon/external/icu4c/i18n/ucol_bld.h': No space left on device. The destination partition has 85Gb free and my source (Ubuntu home) partition has 12Gb free (total of 48Gb, 5% of 48 is not 12).

Is there any other reason why I might get this error? How do i fix it?

Note: The path from which I was moving had a lot of directories and sub-directories. (It was android source actually. So you can imagine.) I don't know if that information might be useful.

Edit: df -h | grep -v '^none' gives

Filesystem      Size  Used Avail Use% Mounted on
/dev/loop0       48G   34G   12G  75% /
udev            3.9G  4.0K  3.9G   1% /dev
tmpfs           793M  1.4M  792M   1% /run
/dev/sda7        50G   50G  441M 100% /host
/dev/sda9        50G   34G   17G  68% /media/sda9
/dev/sda6       300G  281G   20G  94% /media/sda6
/dev/sda5       300G  221G   80G  74% /media/sda5

df -h -i | grep -v '^none' gives

Filesystem     Inodes IUsed IFree IUse% Mounted on
/dev/loop0       3.0M  874K  2.2M   29% /
udev             989K   578  989K    1% /dev
tmpfs            992K   655  991K    1% /run
/dev/sda7        505K    66  505K    1% /host
/dev/sda9         17M   38K   17M    1% /media/sda9
/dev/sda6         20M  110K   20M    1% /media/sda6
/dev/sda5         81M  1.1M   80M    2% /media/sda5

Please note that the partitions in question are /dev/loop0 and /dev/sda5

Edit 2:

I just noticed that I am even unable to create new documents in my partition /dev/sda5 (all the more reason to panic)

Edit 3: I fired sudo strace mv. Here is the output. I don't really understand it a lot.

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Have you checked the hidden trash folders in your home as well as the other partition? –  user68186 Apr 8 at 19:41
    
I right-clicked and then saw "Properties" that gave me the free space. I guess that's the free space including the trash. –  TheRookierLearner Apr 8 at 19:44
    
Run dmesg | less in a Terminal, and see if you can find any meaningful info there. If there is nothing useful in there, go to your /var/log folder and try to find the culprit in the log files. They have meaningful names, so you get the idea which one to check out. (You can browse them with a gui tool, like sudo geany or sudo gedit, if you prefer that way. sudo ls /var/log will list you the log files.) –  Shiki Apr 8 at 19:51
    
Please go into a terminal and add to the question the result of these two commands: df -h | grep -v '^none' and df -h -i | grep -v '^none'. This will give the account of space (the former) and inodes (basically, the number of files) of all filesystems excluding the virtual ones. –  Rmano Apr 8 at 20:34
    
@Rmano - Please see the edit. –  TheRookierLearner Apr 8 at 21:00

1 Answer 1

up vote 1 down vote accepted

When you cancel the copying of file there might appear a problem in the filesystem. So reboot into Windows and run

chkdsk /F <drive>

It should find and fix errors that can't be fixed inside Ubuntu.

Offtopic: I dream about such application that would scan disk in Ubuntu without need to boot Windows…

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