[CentOS] unable to umount

[Leon Fauster]

Am 22.02.2015 um 16:12 schrieb Stephen Harris <lists at spuddy.org>:
>> nothing is using the partition
>> $ lsof |grep srv
>> <empty>
> 
> Although the prompt is a $, I assume you're actually doing this as root?


Yeah - its a bad behaviour doing tasks with a # prompt and then 
making a request in mailinglists with $ as prompt. Sorry for that.



>> $ umount /srv
>> umount: /srv: device is busy
>> umount: /srv: device is busy
>> 
>> 
>> what could keeping the device "busy" ... ?
> 
> Is the device NFS exported?  I've seem that prevent umounting even though
> nothing shows up in the process list.



Its a local "virtual" device (raid controller exports it as one device). 

--
LF