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When I login with root, and run "mkdir test", the system says "No space left on device". But if I login with other user, it goes well. 

[/root]df -h
Filesystem     Size    Used   Avail Capacity  Mounted on
/dev/da0s1a    496M    411M     45M    90%    /
devfs          1.0K    1.0K      0B   100%    /dev
/dev/da0s1e    496M     12K    456M     0%    /tmp
/dev/da0s1f     57G    878M     51G     2%    /usr
/dev/da0s1d    4.3G    215M    3.8G     5%    /var

[/root]df -i
Filesystem  1K-blocks    Used    Avail Capacity iused   ifree %iused  Mounted on
/dev/da0s1a    507630  420824    46196    90%   65790       0  100%   /
devfs               1       1        0   100%       0       0  100%   /dev
/dev/da0s1e    507630      12   467008     0%       6   65784    0%   /tmp
/dev/da0s1f  59252554 1261724 53250626     2%  164917 7513033    2%   /usr
/dev/da0s1d   4553102   91766  4097088     2%   22973  565825    4%   /var


[/root]mkdir test

/: create/symlink failed, no inodes free
mkdir: .ssh: No space left on device
larry
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2 Answers2

6

Your root user's home is on the root filesystem (/). That filesystem is not full, so I have to assume you are out of inodes. Check the output of df -i. Here's a reference about how to diagnose this and what you can do to fix it. Hint: you need to move files to another filesystem or create a new filesystem to use.

Phil Hollenback
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2

It sounds like (a) your root filesystem is full, and (b) non-root users have home directories on a different filesystem. What does df -h show? The output will look something like this:

$ df -h
Filesystem      Size    Used   Avail Capacity  Mounted on
/dev/ad10s3a    496M    279M    177M    61%    /
devfs           1.0K    1.0K      0B   100%    /dev
/dev/ad10s3e    496M    4.4M    452M     1%    /tmp
/dev/ad10s3f    363G    7.4G    327G     2%    /usr
/dev/ad10s3d    4.8G    151M    4.3G     3%    /var

The "capacity" column is how much space is used as a percentage.

larsks
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  • I found that there is a link from other user(/home/why) to /usr except root dir – larry Feb 13 '11 at 04:30
  • Home is often its own partition. Given your partioning /usr is far oversized, and a good location for home directories. When faced with this setup I would symlink the home directories to a directory under /usr. /usr/home would be my choice with /home replaced with a symlink to /usr/home. This would be a relatively transparent change. – BillThor Feb 13 '11 at 05:08
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    @BillThor, I'm going to assume you have never used FreeBSD before at least not much. By default home directories are `/usr/home/${USER}`. With the exception of root who's home is `/root`. `/home` is a symlink to `/usr/home`. In addition `/usr` is used for many other purposes including all user installed software, and the ports tree to name a few. The `/usr` partition should in 90% of cases be the largest partition. – Tabitha Feb 13 '11 at 05:19
  • @Wergan I haven't used FreeBSD for several years, and not much then. The systems I have most experience with use /home or /homes either directly or symlinked from somewhere else. /usr/home is a rational location if it isn't in its own partition. – BillThor Feb 13 '11 at 05:33