Exton|Defender SRS (Super Rescue System) is a Linux system available as a Live System based on Fedora 42, 64bit. Fedora 42 was released on April 15, 2025. Exton|Defender is for administrating or repairing your system and data after a crash. Exton|Defender aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the hard disk partitions. It comes with a lot of Linux software such as system tools and basic tools (editors, Midnight Commander, network tools). Exton|Defender can, however, also be used as a normal Linux Desktop System. It requires no hard drive installation, but can easily be installed to hard drive if you want. Desktop environment: A special version of Cinnamon 6.4.1 developed by Fedora.
NEWS 241210 ABOUT Exton|Defender BASED ON Fedora 42
I have discovered a way to run Exton|Defender fc42 from RAM also when starting Exton|Defender in UEFI mode. The previous Exton|Defender fc40 version could only run from RAM if it started up in Legacy mode. So my advice is to run this version SUPER FAST from RAM! The best way to run a Linux Live System! When Exton|Defender has booted up you can remove/eject the USB stick or the DVD. NOTE ALSO: In version 251026 I’ve managed to change Refracta Snapshot to a GUI (Graphical User Interface) app! It is therefore even easier to handle Refracta Snapshot now! IMPORTANT NOTE: On some computers Exton|Defender still can’t run from RAM in UEFI mode. Only in Legacy mode. I don’t know why. Sort of a mystery.
MOST IMPORTANT CHANGE
I’ve finally managed to install Refracta Snapshot in Exton|Defender, which means that you can create your own Fedora 42 System! I mean change everything to your liking and then create a new ISO. NOTE1: For Refracta Snapshot to work you have to run “my” kernel 6.17.4-amd64-exton when Refracta Snapshot is running. (It won’t work with Fedora’s kernel 6.17.4-200.fc42).
IMPORTANT NOTE: Actually you can run Fedora’s original kernel 6.17.4-200.fc42 and still use Refracta Snapshot. Just don’t uninstall/remove “my” kernel 6.17.4-amd64-exton before running Refracta Snapshot. And don’t remove the links /vmlinuz and /initrd.img to my kernel. Your new ISO will then be created without problems. When running your new ISO live (i.e. from a USB stick/DVD or in VirtualBox/VMware) my kernel will be used. If you install your new Fedora/Exton|Defender System to hard drive Fedora’s kernel 6.17.4-200.fc42 will be used.
NOTE2: Version 251026 of Exton|Defender can run on really old computers. As an example I could run it on my 19 years old laptop Acer Aspire 5102 WLMi.
System Tools included
NTFS-3g, GParted, Shred, Sfdisk (util-linux-ng), Rsync, Ddrescue, FSArchiver, TestDisk and Midnight Commander. Other programs (among many others): NetworkManager, Firefox, Parole Media Player, Samba, Java and Java Runtime Environment (JRE), Emacs, Safecopy, kernel headers and many compilation tools. Exton|Defender uses kernel 6.17.4-amd64-exton when running LIVE. After a hard drive installation Fedora’s original kernel 6.17.4-200.fc42.x86_64 can be used (as an alternative).
SCREENSHOTS
Screenshot 1 – Exton|Defender running in VirtualBox
Screenshot 2 – Refracta Snapshot has started
Screenshot 3 – Running in VMware
Screenshot 4 – Showing a WiFi connection
Screenshot 5 – Calamares Installer is ready
Screenshot 6 – Boot from hard drive
Read about my Android-x86 Systems – 11, 10, Pie, Oreo, Nougat, Marshmallow, Lollipop and KitKat at andex.exton.net – latest is AndEX 11 (with GAPPS), AndEX 10 (with GAPPS) and AndEX Pie 9.0 (also with GAPPS)!
and
about my Android 16, 15, 14, 13, 12, 11, 10, Pie, Oreo, Nougat, Marshmallow and Lollipop versions for Raspberry Pi 5, Pi 4 and Pi 3/2 at raspex.exton.se – latest is RaspAnd 16 (with GAPPS), RaspAnd 15 (also with GAPPS), RaspAnd 14 (also with GAPPS), 13 and 12 (without GAPPS), RaspAnd 11 (with GAPPS) and RaspAnd Oreo 8.1 (also with GAPPS)! 
