The SIS files that are installed using InterpretSIS can
be configured to be non-removable. If an attempt is made to uninstall a non-removable
package, an error (KErrNotSupported) is reported to the UI.
You
can generate a non-removable package using InterpretSIS by
specifying the +nonremovablepkg within the -s option.
For details, see Generating
non-removable installation package through command line.
InterpretSIS is
the preferred mechanism to install non-removable base packages, as Software
Installer only allows you to install a NR base package if it has been signed
using the System Upgrade certificate. If an attempt is made to install a non-removable
base package not signed with a SU cert using the software installer, an error
(KErrNotSupported) is returned.
Note: When replacing or upgrading a non-removable base package using the software installer, the upgrade package must also be non-removable. See
Preinstalled Package Upgrades for more information.The following restrictions
apply to the syntax of the PKG files used to create the SIS files for input
to InterpretSIS:
Options-List is not supported – raises an error.
Embedded SIS Files – raises a warning.
FILETEXT, FILERUN and FILEMIME install
options are not supported – raises a warning.
PP not supported.
The -c argument to MakeSIS can
be used to test whether the PKG file is syntactically valid for InterpretSIS.
Breaching any of the preceding restrictions causes InterpretSIS to
fail, reporting a negative error code.
Notes:
Device creators must
extract the embedded SIS files using DumpSIS and
install them in separate SIS files. Although the InterpretSIS can
install SIS files that have embedded SIS files it displays a warning if the
embedded SIS file is not already installed.
SIS files can contain dependencies, which must be satisfied.
InterpretSIS reports
an error if any target file locations violate the rules imposed by data
caging, summarised here.
In any language-dependent statements, for example Language-Dependent Files lists, InterpretSIS always selects English if the input language has not been provided by the command-line option or in the INI file. If the given input language is not in the list of supported languages of the SIS file, it selects the first language in the SIS file
InterpretSIS does
not display the Logo during
installation. However, it installs them.
InterpretSIS does
not perform signature verification or revocation checking when installing
packages. Also, it does not perform policing of capabilities allocated to
executables.
Packages installed using InterpretSIS have
their validation status set to EValidatedToAnchor.