I can update my server to 1.8 version?

Pls tell me if i can update my server to 1.8 because i don´t know

Go to your profiles then click Update and it should update it.

Likely what you would have to do is stop your servers, goto /usr/games/minecraft
sudo git pull
press enter
goto your browser and your go to your minos site
log in with your root account.
click manage profiles
click create stock profile
click 1.8.6
click update - wait until it confirms it is downloaded and the X changes to a tick
then log out, log in with your mineos user account (MC or some other user not root)
goto your server.config and type vanilla186 as the profile to use.
start your servers

Git pull does not work for me.Installed mineos yesterday.

sudo git pull return that sudo is not found, but i’m already root, so used only git pull, but get the error:

There is no tracking information for the current branch.
Please specify which branch you want to merge with.
See git-pull(1) for details

git pull <remote> <branch>

If you wish to set tracking information for this branch you can d

git branch --set-upstream master origin/<branch>

And vanilla186 is not part of my stock profile. The latest is vanilla181.

How do i get the latest version?

Why don’t you try git branch --set-upstream master origin?

Make sure you are in the correct location for the mineos files. Got should already be initialised.