cantboot breakboot - breaking all the RHEL/CentOS systems

breakboot

How do I use this?

You only need to download the main breakboot launcher once. It always downloads break scripts direct from GitHub and can even auto-update itself if it detects a problem. You can get it from bit.ly/rsaw-cb which is a redirect to: raw.githubusercontent.com/ryran/cantboot/master/breakboot

[root@r72 ~]# curl -Lko breakboot bit.ly/rsaw-cb
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 152 100 152 0 0 717 0 --:--:-- --:--:-- --:--:-- 716
100 8871 100 8871 0 0 3213 0 0:00:02 0:00:02 --:--:-- 5479
[root@r72 ~]# bash breakboot -h
Usage: breakboot { --ls | --ll | [--lesson] <TOKEN> | --update }
Download and launch a cantboot script to break the current system
Designed for and tested on RHEL 5, 6, and 7
Options:
--ls Fetch a list of available TOKENs
--ll Fetch a list of available TOKENs + descriptions
--lesson TOKEN Fetch details about a TOKEN
--update Update this launcher script
Please note: the sole purpose of this app is to BREAK YOUR SYSTEM and make
it UNBOOTABLE. Use at your own risk, preferably on a virtual machine.
Version info: cantboot breakboot v0.1.4 last mod 2016/02/08
See <http://github.com/ryran/cantboot> to contribute
[root@r72 ~]# bash breakboot --ls
01-grub 02-grub 03-grub 04-grub 05-grub 06-grub 07-grub
21-shells 22-kernel 23-storage 24-shells 25-storage
26-kernel 27-storage
[root@r72 ~]# bash breakboot 03-grub
Inspecting TOKEN and attempting download ...
Break script payload downloaded intact; executing ...
All done Reboot time
[ OK ] Started Show Plymouth Reboot Screen.
[ OK ] Stopped Postfix Mail Transport Agent.
[ OK ] Stopped target Network.
...
[ OK ] Reached target Shutdown.
dracut Warning: Killing all remaining processes
Rebooting.
[ 7685.946008] Restarting system.

I don't have a machine to run this on!

• Use upvm and you can have systems to run this on within minutes.

Help? breakboot guide?

For specific breakboot exercises

• To get a hint of what a break-script (identified by a TOKEN as seen in breakboot --ls) is about, use breakboot --ll.
• The script also has the functionality to print lessons about particular break TOKENS with the --lesson option; however, I haven't added any lessons yet. Feel free to contribute.

More general advice needed

• See webapp-choose-adventure/README.md which is currently just more of a proof-of-concept thrown together in hour or two but with time (and/or your contribution!) it could be something amazing!

Ways to Contribute

I've got an idea

• Post a new issue with an idea! No code required!

I want to code a breakscript or improve the main launcher

• Post a new issue with actual code!

I have a github acct and I want to code

1. Fork cantboot master (Fork button in the top right)
2. Clone your new repo to your system (git clone git@github.com:YOURNAME/cantboot.git)
3. Create a local branch (cd cantboot; git checkout -b NN-BREAKNAME)
4. Look at the examples in the breaks directory
5. Create your own break script based on those
6. Execute the ./gen-tokenlist script from the root of the repo
7. Push your changes to your online branch (git add . && git commit && git push origin NN-BREAKNAME)
8. Download breakboot on a vm (curl -Lko breakboot https://raw.githubusercontent.com/YOURNAME/cantboot/NN-BREAKNAME/breakboot; chmod +x breakboot)
9. Test your new break on said vm (gitRoot=https://raw.githubusercontent.com/YOURNAME/cantboot/NN-BREAKNAME ./breakboot NN-BREAKNAME)
10. Submit a pull request to us