"cannot create temporary directory for the root file system: No space left on device", but df-h says home and root are 77% and inodes are OK

roberto32 · 05-24-2018, 12:10 PM

so I am getting this error while trying to dump out telegram history to text file (relatively small file) I can copy hundreds of MB but this operation fails. really strange here's df -h

Code:

udev            5,8G     0  5,8G   0% /dev
tmpfs           1,2G  136M  1,1G  12% /run
/dev/sda6        46G   35G   11G  78% /
tmpfs           5,9G  153M  5,7G   3% /dev/shm
tmpfs           5,0M  4,0K  5,0M   1% /run/lock
tmpfs           5,9G     0  5,9G   0% /sys/fs/cgroup
/dev/loop2      5,0M  5,0M     0 100% /snap/canonical-livepatch/39
/dev/loop1       87M   87M     0 100% /snap/core/4650
/dev/loop3       87M   87M     0 100% /snap/core/4571
/dev/loop0       87M   87M     0 100% /snap/core/4486
/dev/loop4      5,0M  5,0M     0 100% /snap/canonical-livepatch/38
/dev/loop5      4,4M  4,4M     0 100% /snap/canonical-livepatch/26
/dev/loop6      2,8M  2,8M     0 100% /snap/telegram-cli/25
/dev/sda8       1,9G  109M  1,7G   7% /boot
/dev/sda7        52G   37G   13G  75% /home
tmpfs           1,2G   40K  1,2G   1% /run/user/1000
/dev/fuse       250G     0  250G   0% /keybase
/dev/sda1       240G   92G  136G  41% /media/roberto/data

and df -i

Code:

udev            1516005    533  1515472    1% /dev
tmpfs           1521169    851  1520318    1% /run
/dev/sda6             0      0        0     - /
tmpfs           1521169    513  1520656    1% /dev/shm
tmpfs           1521169      6  1521163    1% /run/lock
tmpfs           1521169     16  1521153    1% /sys/fs/cgroup
/dev/loop2           41     41        0  100% /snap/canonical-livepatch/39
/dev/loop1        12841  12841        0  100% /snap/core/4650
/dev/loop3        12831  12831        0  100% /snap/core/4571
/dev/loop0        12819  12819        0  100% /snap/core/4486
/dev/loop4           41     41        0  100% /snap/canonical-livepatch/38
/dev/loop5           41     41        0  100% /snap/canonical-livepatch/26
/dev/loop6           37     37        0  100% /snap/telegram-cli/25
/dev/sda8        124928    309   124619    1% /boot
/dev/sda7       3424256 912390  2511866   27% /home
tmpfs           1521169     30  1521139    1% /run/user/1000
/dev/fuse             0      0        0     - /keybase
/dev/sda1      15964560 170903 15793657    2% /media/roberto/data

hydrurga · 05-24-2018, 12:21 PM

I don't know a lot about this, but the "cannot create temporary directory for the root file system" message appears to be created by Snap (https://github.com/snapcore/snapd/bl...ount-support.c).

What type of filesystems do you have on / and /home?

Habitual · 05-25-2018, 11:49 AM

https://askubuntu.com/questions/9792...a-snap-package

MadeInGermany · 05-27-2018, 07:34 AM

Perhaps an open file was deleted?
Then its space is not yet freed - will be freed when the opening process terminates.
You find deleted files with

Code:

lsof | grep -w deleted