The urge to run the latest trunk of KDE is too great ! but the fact that the trunk is not the most stable keeps a lot of us away from it. Our Friends over at project neon have done a great job trying to address the same issue.
But the problem is slightly bigger than this, imagine a scenario where you are working on two projects and for one piece of code to run you need to uninstall a few installed packages this breaks another piece of software that you need for another project.
Or another scenario would be , you are about to install an experimental piece of software. Do you leave your system in an inconsistent state if that experimental software doesn’t work ? Do you take a back-up ? or do you try to pull off a complex trick of lots of Alternate environments ?
The most embarrassing situation is when you go to your local Free Software User’s Group / LUG to give a talk about how great your OS and its applications are , and just when you are about to speak the app you were showcasing crashes , Damn !
How do you ensure that your apps don’t crash while giving the demo and also maintain your latest unstable hack to your favorite software without both getting into each others way ?
What is the solution to all of the above problems ?
I propose using Boot environments, on Open Indiana a.k.a Oi (Solaris) ( I have started to love this Distro , but my first love is always belenix.org 🙂 )
Now supposing you have a clean install of you create a snapshot
$zfs create snapshot mydistro@firstInstall
and now make this snapshot bootable
$beadm create -e mydistro@firstinstall FirstInstall
Now go ahead and bork up your system 🙂
You may want to come back to the borked system again later, so you create a new snapshot and make it bootable.
$zfs create snapshot mydistro@borked $beadm create -e mydistro@borked Borked
now you want to boot into the borked Boot Environment next time.
$beadm activate Borked
reboot, and in the OI grub you will find FirstInstall and Borked entries, select the one you want and continue working. FirstInstall lands you up
in the system before you borked it up. Enjoy hacking 🙂
more info about boot environments and beadm
That’s all for now! Give OI a try , you may switch over 😉
Until next time !