On Thu, 5 Dec 2019 at 19:04, Samuel Sieb <samuel(a)sieb.net> wrote:
On 12/5/19 8:02 AM, Robert McBroom via users wrote:
> Updated from Fedora 29 to 31 on a legacy system. Kernel updates no
> longer update grub.cfg to the new kernel. Ran grub2-mkconfig -o
> /boot/grub2/grub.cfg which finds Windows and Centos 6 but none of the
> Fedora kernels. /boot is in its own partition and the Centos kernels
> are in the Centos partition on a second drive. A backup of windows 7 on
> a usb drive is even found by os-prober. Everything these days seems to
> point to uefi systems.
grub has been switched to use BLS. Check if you have files in
/boot/loader/entries/.
That's interesting. First i've heard of BLS.
It would seem that runs into a
known issue
https://bugzilla.redhat.com/show_bug.cgi?id=1652806
And the way tl;dr is "on BIOS systems you have to run 'grub2-install
/dev/sdX'