在Linux中，有時使用umount指令去解除安裝LV或檔案時，可能出現umount: xxx: device is busy的情況，如下案例所示
[root@DB-Server u06]# vgdisplay -v VolGroup03 Using volume group(s) on command line Finding volume group "VolGroup03" --- Volume group --- VG Name VolGroup03 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 1 Act PV 1 VG Size 1.53 GB PE Size 32.00 MB Total PE 49 Alloc PE / Size 49 / 1.53 GB Free PE / Size 0 / 0 VG UUID I9VS8Q-r2Gv-Ieh7-mwj2-Y8fX-4I4a-Iyg8OQ --- Logical volume --- LV Name /dev/VolGroup03/LogVol00 VG Name VolGroup03 LV UUID 2GrkGc-sA1u-GQFx-zZG3-FgPj-r7Hx-rcXKbf LV Write Access read/write LV Status available # open 1 LV Size 1.53 GB Current LE 49 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Physical volumes --- PV Name /dev/sdc2 PV UUID XrGKB6-unEt-ccor-Re6Q-ZqmG-QA5m-rutX0t PV Status allocatable Total PE / Free PE 49 / 0 You have new mail in /var/spool/mail/root [root@DB-Server u06]# umount /dev/VolGroup03/LogVol00 umount: /u06: device is busy umount: /u06: device is busy 
出現這種情況，表示還有程序在使用/u06挂載點，那麼此時可以借助fuser指令找出占用目錄/u06的所有程序，然後kill掉，此時就可以umount lv了。如下所示：
[root@DB-Server u06]# fuser -m /u06 /u06: 10584c [root@DB-Server u06]# kill -9 10584 [root@DB-Server ~]# umount /dev/VolGroup03/LogVol00 [root@DB-Server ~]# ![linux-svn解除安裝與安裝[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)