[SATLUG] Stopping an external hard drive

Alan Lesmerises alesmerises at satx.rr.com
Wed Sep 17 22:15:00 CDT 2008

I have an external NTFS hard-drive mounted to my system (to transfer 
some files from a Windows system), and now that I want to unmount it, I 
get an error message saying the device is busy.  When I look at the 
running processes (ps -ef), I find nothing that refers to that device 
(sdc1) or the mount point (/mnt/usb_drive).

How can stop whatever process is making the device busy or find out what 
process is accessing that device?  I really don't want to just 
disconnect it and risk corrupting something ...

Al Lesmerises

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