stat overrides are a way to tell
to use a different owner
or mode for a file when a package is installed. (note: I use the word
file here, but in reality this can be any filesystem object that dpkg
handles, including directories, devices, etc.). This can be used to
force programs that are normally setuid to be install without a setuid
flag, or only executable by a certain group.
dpkg-statoverride is a utility to manage the list of stat
overrides. It has three basic functions: adding, removing and listing
Add an override for file. file does not need to exist
when this command is used; the override will be stored and used later.
Users and groups can be specified by their name (for example root
or nobody), or by their number by prepending the number with a
# (for example #0 or #65534). The mode needs
to be specified in octal.
If --update is specified and file exists, it is immediately
set to the new owner and mode.
Remove an override for file, the status of file is left
unchanged by this command.
List all overrides. If a glob pattern is specified restrict the output
to overrides which match the glob. If there are no overrides or none
match the glob dpkg-statoverride will exit with an exitcode of 1.
File which contains the current list of stat overrides of the system. It
is located in the dpkg administration directory, along with other files
important to dpkg, such as status or available.
Note: dpkg-statoverride preserves the old copy of this file, with
extension "-old", before replacing it with the new one.