df: `/root/.gvfs': Permission denied

在使用oracle账户检查本地磁盘情况时，总是出现df: `/root/.gvfs': Permission denied信息提示。

[oracle@rac1 ~]$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/rootvg-LogVol00
                      9.9G  8.3G  1.2G  88% /
tmpfs                 2.0G  1.3G  740M  63% /dev/shm
/dev/sda1             194M   32M  152M  18% /boot
/dev/mapper/rootvg-LogVol01
                      9.9G  286M  9.1G   3% /home
/dev/mapper/rootvg-LogVol03
                      5.0G  143M  4.7G   3% /tmp
/dev/mapper/rootvg-LogVol02
                      2.0G  196M  1.7G  11% /var
/dev/mapper/rootvg-LogVol04
                       60G   11G   46G  19% /u01
/dev/sr0              3.5G  3.5G     0 100% /mnt/cdrom
df: `/root/.gvfs': Permission denied

这个是RHEL6的一个已知的BUG 719272。
https://bugzilla.redhat.com/show_bug.cgi?id=719272

This typically happens when you run gnome-session or any other gnome app under root, autospawning gvfs-fuse-daemon. At first, Gnome apps should not be run under root nor su/sudo. As a second note, this is a design issue of FUSE mounts, denying access to other users - system tools should be aware of it and ignore.

我们可以使用如下命令来跳过这个错误提示。

[oracle@rac1 ~]$ df -x fuse.gvfs-fuse-daemon
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/rootvg-LogVol00
                      10321208   8618244   1178676  88% /
tmpfs                  2024620   1267544    757076  63% /dev/shm
/dev/sda1               198337     32665    155432  18% /boot
/dev/mapper/rootvg-LogVol01
                      10321208    292144   9504776   3% /home
/dev/mapper/rootvg-LogVol03
                       5241096    145536   4829320   3% /tmp
/dev/mapper/rootvg-LogVol02
                       2064208    200488   1758864  11% /var
/dev/mapper/rootvg-LogVol04
                      61927420  10662596  48119096  19% /u01

这个错误对系统来说是没有太多影响的，这里我们可以忽略。