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NFS umount shows the "Device busy (Error 16)"

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Operating Systems SCO NFS umount shows the "Device busy (Error 16)"
# 15  
Old 08-15-2014
right now I can not try 'fuser -k' because a 'fuser' show me pid of user processes, but if the solution is to get started to kill processes ...
The computer has only one lan connection.

I think the solution is to get started to kill all processes indicating fuser (complicated I find a schedule that is not with users)

I think it's a bug, I wrote the post if there is anything I see or am doing wrong .. (I need a different view to mine)
The SLED10 supports v2 and v3, and v2 SCO

If it is true that the sco is old, but migrating is not so easy ... (we are about to migrate to 5.0.7 with VirtialBox)

When you find the time to kill the process, I comment.
Thanks for writing and for what will come Smilie

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UMOUNT(8)						    BSD System Manager's Manual 						 UMOUNT(8)

umount -- unmount filesystems SYNOPSIS
umount [-fv] special | node umount -a | -A [-fv] [-h host] [-t type] DESCRIPTION
The umount command calls the unmount(2) system call to remove a special device or the remote node (rhost:path) from the filesystem tree at the point node. If either special or node are not provided, the appropriate information is taken from the list of filesystems provided by getfsent(3). The options are as follows: -a All the filesystems described via getfsent(3) are unmounted. -A All the currently mounted filesystems except the root are unmounted. -f The filesystem is forcibly unmounted. Active special devices continue to work, but all other files return errors if further accesses are attempted. The root filesystem cannot be forcibly unmounted. -h host Only filesystems mounted from the specified host will be unmounted. This option implies the -A option and, unless otherwise speci- fied with the -t option, will only unmount NFS filesystems. -t type Is used to indicate the actions should only be taken on filesystems of the specified type. More than one type may be specified in a comma separated list. The list of filesystem types can be prefixed with ``no'' to specify the filesystem types for which action should not be taken. For example, the umount command: umount -a -t nfs,hfs umounts all filesystems of the type NFS and HFS. -v Verbose, additional information is printed out as each filesystem is unmounted. NOTES
Due to the complex and interwoven nature of Mac OS X, umount may fail often. It is recommended that diskutil(1) (as in, ``diskutil unmount /mnt'') be used instead. SEE ALSO
unmount(2), getfsent(3), mount(8), diskutil(1) HISTORY
A umount command appeared in Version 6 AT&T UNIX. 4th Berkeley Distribution May 8, 1995 4th Berkeley Distribution

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