You gave read/write/execute to all files in your system.
Can't see why this is something that prevents you to connect to the server anymore.
Maybe I am missing something here?
Anyhow I don't think there is any way to undo what you did.
So next time have a look on the threads about backup !!!
I use clonezilla from the backup plugin and it's straight forward.
I learnt the hard way myself too (rm -r as root a system directory 
)
and from then I do regular backups of the OS.
You need to reinstall.
can he run a live distribution over dvd , mount that specific drive and fix the problem ?
You can but so many chmod values have been damaged it would take forever to fix. Also, someone would have to feed him the correct values. It would take far too much time.
Well, time to take the baby to my workplace and grab an old monitor and have some new setup fun.
Thanks all for the confirmation that there isn't a magical "OMV rescue USB drive" method 
You can always boot from a rescue cd to alter a few values. But when you have done something like above... OMG!!!
Good Luck on reinstall....
Zitatyou can but so many chmod values have been damaged it would take forever to fix. Also, someone would have to feed him the correct values. It would take far too much time.
yes , i forgot completely in that perspective .
Install fresh. There are plenty of files on a Linux box that can't be 777 because the service won't allow it. You would have a very difficult time finding all the right permissions.
You can keep /etc/openmediavault/config.xml for reference but that is about it.
Yup, I know this thread is 4 months old, but just for reference:
http://serverfault.com/questio…s-chmod-r-777-destructive
Greetings
David
Reinstall is the easiest and safest option. However, you can try:
https://matoski.com/article/de…ar-ownership-permissions/
Slow way:
Reinstall all Packages, will redo permissions:
dpkg --get-selections \* | awk '{print $1}' | xargs -l1 aptitude reinstall
Do the dpkg/apt way: Download all installed packages (you need space for that), read the permissions and apply that to your files. (called Method 2 in the link above)
[edit]
Having a backup is always the best way to restore from stupidity
When someone has made a mistake like this I don't even think it is worth your time to try to repair it. Restore a backup if you have else reinstall.
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