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Full Discussion: unmount the partition
Top Forums UNIX for Dummies Questions & Answers unmount the partition Post 302448564 by Scott on Thursday 26th of August 2010 10:25:30 AM
Old 08-26-2010
Hi.

(assuming you have privileges) Did you try:

Code:
umount /dev/sdb2

or

Code:
umount /home2

If you receive an error (like device busy) you can use lsof or fuser to see what processes are accessing the mount point.

If you don't want it to be mounted again at the next reboot, remove it from, or comment it out in, /etc/fstab or change it's options to prevent it. (that's OS-specific - what is your OS?)
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halmount(1)							   User Commands						       halmount(1)

NAME
halmount - mount and umount filesystems via hal SYNOPSIS
halmount [OPTIONS]... <device|label> [mountpoint] halmount -u [OPTIONS]... <device|label|mountpoint> halmount -e [OPTIONS]... <device|label|mountpoint> DESCRIPTION
halmount can mount and umount filesystems via hal. Hotpluggable devices and media such as USB sticks and CD-ROMs are typically not entered into /etc/fstab and are therefore not mountable by normal users via the mount(8) command. Instead hal provides methods to mount and umount such devices. Additionally it's also possible to eject devices. For devices like USB sticks eject means the device cannot be mounted again until the stick is re-plugged, ie a "save remove" feature. OPTIONS
-t TYPE specify the file system type to use -o OPTIONS specify mount options -v verbose listing of devices -u umount specified device -e umount and eject specified device -a perform requested mount/umount/eject operation all available devices --listudi list UDIs of devices, useful for debugging EXAMPLES
halmount list all mountable devices known to hal halmount /dev/hdc mount device hdc on default mount point (/media/volumelabel) halmount /dev/hdc cdrom mount device hdc on /media/cdrom halmount -u "Holiday Pictures" umount device that has the label "Holiday Pictures" SEE ALSO
mount(8), umount(8), eject(1), fstab(5) SUSE Linux November 2006 halmount(1)
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