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DFL Return Values
On completion of any dfl command, dfl returns the following values:
Value
Description
0
Command succeeded
-1
System must be Thawed to perform desired operation
-2
The application has expired
EACCES
Insufficient permission to execute the command
EINVAL
Invalid option detected on the command line
ENOENT
Partition or configuration file does not exist
ENOSPC
No space left on partition
ENXIO
No such device or address. Deep Freeze could not contact the kernel.
EPERM
Operation not permitted
Using Deep Freeze
After Deep Freeze has been installed and a configuration has been assigned to a partition, the computer
can be operated as usual. The only visual evidence that Deep Freeze is installed on a machine is the
presence of a Deep Freeze icon in the kicker panel (if configured).
Users can make changes to the machine, including renaming or deleting files and folders, downloading
files from the Internet, changing the desktop, and more. However, the Frozen partitions are completely
restored to their original configurations and contents at restart.
Deep Freeze Icons
When Deep Freeze is installed, the polar bear icon appears in the kicker panel, if the icon has been
configured to appear:
The Frozen polar bear icon indicates that the machine is currently Frozen.
The Thawed polar bear icon indicates that the machine is currently Thawed.
Saving Documents
On a machine that is Frozen, a user can permanently save documents to a Thawed partition on the
machine, a network location, or onto a CD, USB keychain drive, or external hard drive.
Software Installation and Permanent Changes
Permanent changes and software installations can only be made to a Thawed machine or a Thawed
partition. If a machine is in a Frozen state, any software that has been installed will be gone after a
restart.
A newly installed application should be run at least once while the machine or partition is Thawed in
order to create a preference file, dismiss registration dialogs, and initialize various values.
A newly installed application may require the computer to be restarted for setup to be completed. If
this is the case, it is recommended to restart the computer in a Thawed state, and then log in with the
same user account, run the application once, and then log out before setting the machine to restart in
a Frozen state.
