On Sun, Sep 25, 2016 at 01:32:12PM -0500, Bowen Wang wrote:
Ok, I think it is better to keep the older kernel because I do need some stable stuff.
On 25/09/16 14:31, Adam Williamson wrote:
If you really just want to have one kernel installed at a time you can configure this, I think, but I'd have to look up how.
In /etc/dnf/dnf.conf there is a line 'installonly_limit=<something>'; the same in yum.conf if you are still using that. A default value is 3 and that is why normally you end up with three kernels in /boot/. You can decrease or increase that number.
As dnf, or yum, will not delete a package for the currently running kernel then usually it does not make much sense to drop that value below 2.
Michal