On 11/27/2013 09:56 AM, Michael Schwendt wrote:
On Tue, 26 Nov 2013 15:02:33 -0800, Joe Zeff wrote:
> On 11/26/2013 02:00 PM, Javier Perez wrote:
>> For some reason, Ubuntu does not find out Fedora unless I mount the disk
>> each time I update ubuntu kernel.
>
> How do you expect Ubuntu to find a kernel on an unmounted partition?
You may be surprised, but when using os-prober, it will examine the system
and search for installations regardless of whether they are stored on a
mounted fs. It does that here by default, and even finds them on LVs.
As this "feature" is quite annoying when using cascaded bootloaders, it
has become part of my routine customizations to put
GRUB_DISABLE_OS_PROBER=true
into /etc/default/grub on all new installations to disable it.
Ralf