kernel repositories

hi guys, I’m using kernel:Stable repository to have the latests kernel updates (3.15) but when I run updates It shows me even the 3.11 kernel updates from opensuse os Repo. How can I chose only to update the kernel on repo kernel:Stable? If I update both them, considering that on GRUB I have both opensuse with 3.11 kernel and 3.15, will I have both the kernels updated ? Will the 3.11 update change the default settings on grub ?

Do you have a 3.11 kernel installed?
Then it’s obvious that the update applet (I guess that’s what you mean?) wants to install the update available for that one.
Try to remove all 3.11 kernels, in YaST f.e. (click on “Versions” below the package list)

If that doesn’t help, lock them.
See also here:
http://forums.opensuse.org/showthread.php/498046-Kernel-3-11-update-notification-while-having-kernel-3-14?p=2643901#post2643901

If I update both them, considering that on GRUB I have both opensuse with 3.11 kernel and 3.15, will I have both the kernels updated ?

What grub version are you using?
GRUB2 should always boot the kernel with the highest version, unless you manually select another one (in “Advanced Options”).

GRUB legacy sorts the kernel by the order in which they were installed AFAIK, but you can of course change the order in YaST->System->Boot Loader, and you can set the default entry to be bootet there. And you can even remove entries.

Will the 3.11 update change the default settings on grub ?

No. Why should it?
If you mean the kernel that is bootet by default and you use grub legacy, then yes, the latest one installed will be the first in the list and booted by default. But see above.

Iì’m using GRUB2 so I can update both! (I’m keeping 3.11 from Os Repo just in case something goes wrong). Thank you so much!