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huangliang0703

于 2016-02-04 11:25:09 发布

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分类专栏： linux

本文链接：https://blog.youkuaiyun.com/huangliang0703/article/details/50634309

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[root@q9jsdb1 ~]# df -h
Filesystem                          Size  Used Avail Use% Mounted on
/dev/mapper/vg_root-lv_root          99G   15G   79G  16% /
tmpfs                                95G   12K   95G   1% /dev/shm
/dev/sda2                           190M   54M  126M  30% /boot
/dev/sda1                           128M  252K  128M   1% /boot/efi
/dev/mapper/vg_root-lv_u01           99G  4.6G   89G   5% /u01
/dev/mapper/vg_oradata-lv_oradata1   22T   48K   21T   1% /oradata
[root@q9jsdb1 ~]# umount /oradata/
umount: /oradata: device is busy.
        (In some cases useful info about processes that use
         the device is found by lsof(8) or fuser(1))
[root@q9jsdb1 ~]# umount /oradata/
[root@q9jsdb1 ~]# df -h
Filesystem                   Size  Used Avail Use% Mounted on
/dev/mapper/vg_root-lv_root   99G   15G   79G  16% /
tmpfs                         95G   12K   95G   1% /dev/shm
/dev/sda2