Restore using recovery mode. If you've never synced with iTunes or set up Find My iPhone in iCloud, you'll need to use recovery mode to restore your device. This will erase the device and its passcode. 1  Connect your iOS device to your computer and open iTunes.
So if you have a .deb file: 1  You can install it using sudo dpkg -i /path/to/deb/file followed by sudo apt-get install -f. 2  You can install it using apt-get install package_name. 3  Install gdebi and open your .deb file using it (Right-click -> Open with).
How to Convert an RPM File. Commands that invoke the Linux Alien software can be used to convert RPM to DEB. The following commands will install Alien and then use it to convert the file to a DEB file: apt-get install alien alien -d file.rpm. You can replace -d with -i to convert the package and then immediately start the install.