[Mashiro]

@deanhills : i have so question.
Can i use this command on my VPS-9 ?
Is this a soft upgradation command which remains all my custom programs and settings, or convert into fresh copy with zero updates.
my basic Running programs are in
/etc
/var
/usr
is this all directories still remains or all OS back to fresh?

@sagher I'd be careful if I were you as you have content on your VPS.  I did the upgrade without any content on my VPS.  Maybe we should ask @Mashiro's advice what the effect can be if you have content on your VPS.

To answer what I have already answered:

Warning: Debian might be generally a very stable OS but distribution upgrades are something that can be rated as dangerous and should be handled with care. I don't recommend to dist upgrade a long running server with applications and other things already running on it. Even if you decide to do so take backups! Things could go wrong and the server could be rendered unusable! Therefore I would like to explain that I'm not responsible for any damage that might happen to any server when performing a distribution upgrade. I recommend only to do this on a fresh installed Debian 9 VPS where you have nothing to lose!

(https://post4vps.com/Thread-Easy-way-to-...8#pid32428)

@hamed @sagher

Have you both ignored the red text that is placed at almost the top of the tutorial post?

It answers your questions pretty much in terms of if you should do this or not and when you should do it or not.

About the question by @hamed: During the upgrade the packages are upgraded and the kernel. Of course partially configurations are replaced with newer versions that come with the new software. However for everything you changed or custom configured you will be asked mostly if you wish to replace the configuration or keep the original. And for the most it will NOT replace any configuration during an upgrade. So nothing is mixed up. You are still just upgrading the packages to the level the newer Debian version.

(https://post4vps.com/Thread-Easy-way-to-...3#pid40753)


Nothing changed since I posted these statements the last time. It's all still the same.

Everything and nothing can happen... you do it at your own risk. My clear recommendation is DON'T DO IT on a production server. Especially with your level of knowledge and experience it is highly NOT recommended to perform this at all.