Linux umount裝置時出現device is busy解決方法
阿新 • • 發佈:2019-01-05
[[email protected] 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
[[email protected] 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掛載點,那麼此時可以藉助fuser命令找出佔用目錄/u06的所有程序,然後kill掉,此時就可以umount lv了。如下所示:
[[email protected] u06]# fuser -m /u06
/u06: 10584c
[[email protected] u06]# kill -9 10584
[[email protected] ~]# umount /dev/VolGroup03/LogVol00
[[email protected] ~]#
關於fuser,它是用來顯示所有正在使用著指定的file, file system 或者 sockets的程序資訊。它通常被用在診斷系統的“resource busy”問題,通常是在你希望umount指定的掛載點得時候遇到。如上所示,使用選項-m,用來查詢所有正在使用/u06掛載點的所有程序, 10584c表示程序為10584. 關於fuser的其它資訊,可以使用man fuser檢視具體相關資訊。
原文轉載:http://www.cnblogs.com/kerrycode/p/5634828.html 瀟湘隱者