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System Administration Commandslumount(1M)


NAME

 lumount, luumount - mount or unmount all file systems in a boot environment

SYNOPSIS

 /usr/sbin/lumount [-l error_log] [-o outfile] BE_name [mount_point] [-X]
 /usr/sbin/luumount [-f] [-n] BE_name | [-m] mount_point | block_device [-l error_log] [-o outfile] [-X]

DESCRIPTION

 

The lumount and luumount commands are part of a suite of commands that make up the Live Upgrade feature of the Solaris operating environment. See live_upgrade(5) for a description of the Live Upgrade feature.

The lumount and luumount commands enable you to mount or unmount all of the filesystems in a boot environment (BE). This allows you to inspect or modify the files in a BE while that BE is not active. By default, lumount mounts the file systems on a mount point of the form /.alt.BE_name, where BE_name is the name of the BE whose file systems are being mounted. See NOTES.

The lumount and luumount commands require root privileges.

OPTIONS

 

The lumount and luumount commands have the following options:

-f
For luumount only, forcibly unmount a BE's file systems after attempting (and failing) an unforced unmount. This option is analogous to the umount(1M) -f option.
-l error_log
Error and status messages are sent to error_log, in addition to where they are sent in your current environment.
-m mount_point
luumount unmounts the file systems of the BE that owns mount_point. See description of mount_point under OPERANDS, below. The use of -m is optional when specifying a mount point for luumount.
-n BE_name
Name of the BE whose file systems will be unmounted. See description of BE_name under OPERANDS, below. The use of -n is optional when specifying a BE name for luumount.
-o outfile
All command output is sent to outfile, in addition to where it is sent in your current environment.
-X
Enable XML output. Characteristics of XML are defined in DTD, in /usr/share/lib/xml/dtd/lu_cli.dtd.<num>, where <num> is the version number of the DTD file.

For luumount, if you supply an argument and specify neither -m nor -n, the command determines whether your argument is a BE name, a mount point, or a block device. If it is one of these three and the argument is associated with a BE that has mounted file systems, luumount unmounts the file systems of that BE. Otherwise, luumount returns an error.

OPERANDS

 
BE_name
Name of the BE whose file systems will be mounted or unmounted. This is a BE on the current system other than the active BE. Note that, for successful completion of an lumount or luumount command, the status of a BE must be complete, as reported by lustatus(1M). Also, none of the BE's disk slices can be mounted (through use of mount(1M)).
mount_point
For lumount, a mount point to use instead of the default /.alt.BE_name. If mount_point does not exist, lumount creates it. For luumount, the BE associated with mount_point will have its file systems unmounted. Note that default mount points are automatically deleted upon unmounting with luumount. Mount points that you specify are not deleted.
block_device
For luumount only, block_device is the root slice of a BE, such as /dev/dsk/c0t4d0s0. luumount unmounts the file systems of the BE associated with block_device.

EXAMPLES

 Example 1. Specifying a Mount Point
 

The following command creates the mount point /test and mounts the file systems of the BE second_disk on /test.

 
# lumount second_disk /test
/test

You can then cd to /test to view the file systems of second_disk. If you did not specify /test as a mount point, lumount would create a default mount point named /alt.second_disk.

Example 2. Unmounting File Systems
 

The following command unmounts the file systems of the BE second_disk. In this example, we cd to / to ensure we are not in any of the file systems in second_disk.

 
# cd /
# luumount second_disk
#

If /dev/dsk/c0t4d0s0 were the root slice for second_disk, you could enter the following command to match the effect of the preceding command.

 
# cd /
# luumount /dev/dsk/c0t4d0s0
#

EXIT STATUS

 

The following exit values are returned:

0
Successful completion.
>0
An error occurred.

FILES

 
/etc/lutab
list of BEs on the system
/usr/share/lib/xml/dtd/lu_cli.dtd.<num>
Live Upgrade DTD (see -X option)

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWluu

SEE ALSO

 

lu(1M), luactivate(1M), lucancel(1M), lucompare(1M), lucreate(1M), lucurr(1M), ludelete(1M), ludesc(1M), lufslist(1M), lumake(1M), lurename(1M), lustatus(1M), luupgrade(1M), lutab(4), attributes(5), live_upgrade(5)

NOTES

 

If a BE name contains slashes (/), lumount replaces those slashes with colons in a default mount point name. For example:

 
# lumount 'first/disk'
/.alt.first:disk


SunOS 5.9Go To TopLast Changed 24 Jan 2002

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.