oracle用户使用df -h时报错

[oracle@dg1 OraBackup]$ df -h
df: `/root/.gvfs': Permission denied
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3        36G   14G   21G  40% /
tmpfs           3.0G  1.2G  1.9G  40% /dev/shm
/dev/sda1       194M   34M  151M  19% /boot
shmfs           3.0G  1.2G  1.9G  40% /dev/shm
/dev/sr0        3.6G  3.6G     0 100% /mnt

红帽官方说这是个bug

Bug 447314 - df shows /root/.gvfs permission denied

Status: CLOSED CURRENTRELEASE
Aliases:     None (edit) 
Product:    Fedora
Component:  gvfs (Show other bugs)
Version(s): 9
Platform:   All Linux
Priority:   low Severity: medium
Target Milestone:   ---
Target Release: ---
Assigned To:    Tomáš Bžatek
QA Contact: Fedora Extras Quality Assurance
URL:    
Whiteboard: 
Keywords:   
Depends On: 
Blocks: 
     Show dependency tree / graph

以下是本bug的solution，切换至root用户执行

[root@dg1 OracleBak]# su - root
[root@dg1 OracleBak]# umount /root/.gvfs/
[root@dg1 OracleBak]# rm -rf /root/.gvfs/

切换至oracle用户，继续查看

[root@dg1 OracleBak]# su - oracle
[oracle@dg1 ~]$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3        36G   14G   21G  40% /
tmpfs           3.0G  1.2G  1.9G  40% /dev/shm
/dev/sda1       194M   34M  151M  19% /boot
shmfs           3.0G  1.2G  1.9G  40% /dev/shm
/dev/sr0        3.6G  3.6G     0 100% /mnt

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注:本文转自https://www.cnblogs.com/wqswjx/p/5625523.html