On Mon, May 6, 2019 at 9:34 AM Gianluca Cecchi <gianluca.cecchi@gmail.com> wrote:
 
[snip]
 
So I think something went bad in updating grub2 config...
Any hint on how to recover grub, eventually booting from a usb stick in any way?

Already happened to anyone else with f29 to f30?
I followed on the same laptop the same procedure without problems from f26 (or f27) to f29 until this problem.

Thanks,
Gianluca

 After reading the https://fedoraproject.org/wiki/Common_F30_bugs I see that a problem with bios based hw (as my one, where EFI is disabled) could impact if born with Fedora 20 or older.
In my case I seem to remember to have started with Fedora 24... but after booting from a Slax based usb key (see https://www.slax.org/), I see hat indeed I had a grub.cfg.rpmsave under /boot/grub2/ (I have a separate /boot partition)

After copying to grub.cfg and rebooting I'm now at my updated system but with a f29 kernel 5.0.10-200.fc29.x86_64
I see installed the packages

$ rpm -qa | grep kernel | grep 30
kernel-devel-5.0.11-300.fc30.x86_64
libreport-plugin-kerneloops-2.10.0-1.fc30.x86_64
kernel-modules-extra-5.0.11-300.fc30.x86_64
abrt-addon-kerneloops-2.12.0-2.fc30.x86_64
kernel-5.0.11-300.fc30.x86_64
kernel-modules-5.0.11-300.fc30.x86_64
kernel-headers-5.0.9-300.fc30.x86_64
kernel-tools-libs-5.0.9-300.fc30.x86_64
kernel-core-5.0.11-300.fc30.x86_64

How can I configure the kernel-5.0.11-300.fc30.x86_64?
It seems that "grub2-install /dev/sda" didn't make it...
Simply reinstall kernel packages or what?

BTW: sudo dnf update gives in this moment this output

 Problem 1: package glibc-headers-2.29-9.fc30.i686 requires glibc = 2.29-9.fc30, but none of the providers can be installed
  - cannot install both glibc-2.29-12.fc30.i686 and glibc-2.29-9.fc30.i686
  - cannot install both glibc-2.29-9.fc30.i686 and glibc-2.29-12.fc30.i686
  - cannot install both glibc-2.29-12.fc30.x86_64 and glibc-2.29-9.fc30.x86_64
  - cannot install both glibc-2.29-9.fc30.x86_64 and glibc-2.29-12.fc30.x86_64
  - cannot install the best update candidate for package glibc-headers-2.29-9.fc30.i686
  - cannot install the best update candidate for package glibc-2.29-9.fc30.i686
  - cannot install the best update candidate for package glibc-2.29-9.fc30.x86_64
 Problem 2: package python2-langtable-0.0.41-2.fc30.noarch requires langtable = 0.0.41-2.fc30, but none of the providers can be installed
  - cannot install both langtable-0.0.42-1.fc30.noarch and langtable-0.0.41-2.fc30.noarch
  - cannot install both langtable-0.0.41-2.fc30.noarch and langtable-0.0.42-1.fc30.noarch
  - cannot install the best update candidate for package python2-langtable-0.0.41-2.fc30.noarch
  - cannot install the best update candidate for package langtable-0.0.41-2.fc30.noarch
 Problem 3: problem with installed package glibc-headers-2.29-9.fc30.i686
  - glibc-headers-2.29-9.fc30.i686 has inferior architecture
  - cannot install both glibc-headers-2.29-12.fc30.x86_64 and glibc-headers-2.29-9.fc30.x86_64
  - cannot install both glibc-headers-2.29-9.fc30.x86_64 and glibc-headers-2.29-12.fc30.x86_64
  - cannot install the best update candidate for package glibc-headers-2.29-9.fc30.x86_64
 Problem 4: package yum-langpacks-0.4.5-10.fc30.noarch requires python2-langtable, but none of the providers can be installed
  - package python2-langtable-0.0.41-2.fc30.noarch requires langtable-data = 0.0.41-2.fc30, but none of the providers can be installed
  - cannot install both langtable-data-0.0.42-1.fc30.noarch and langtable-data-0.0.41-2.fc30.noarch
  - cannot install both langtable-data-0.0.41-2.fc30.noarch and langtable-data-0.0.42-1.fc30.noarch
  - cannot install the best update candidate for package yum-langpacks-0.4.5-10.fc30.noarch
  - cannot install the best update candidate for package langtable-data-0.0.41-2.fc30.noarch
 Problem 5: problem with installed package python2-langtable-0.0.41-2.fc30.noarch
  - package python2-langtable-0.0.41-2.fc30.noarch requires langtable = 0.0.41-2.fc30, but none of the providers can be installed
  - cannot install both langtable-0.0.42-1.fc30.noarch and langtable-0.0.41-2.fc30.noarch
  - cannot install both langtable-0.0.41-2.fc30.noarch and langtable-0.0.42-1.fc30.noarch
  - package python3-langtable-0.0.42-1.fc30.noarch requires langtable = 0.0.42-1.fc30, but none of the providers can be installed
  - cannot install the best update candidate for package python3-langtable-0.0.41-2.fc30.noarch
====================================================================================================
 Package                      Architecture      Version                    Repository          Size
====================================================================================================
Skipping packages with conflicts:
(add '--best --allowerasing' to command line to force their upgrade):
 glibc                        i686              2.29-12.fc30               updates            3.7 M
 glibc                        x86_64            2.29-12.fc30               updates            3.9 M
 glibc-headers                x86_64            2.29-12.fc30               updates            476 k
 langtable                    noarch            0.0.42-1.fc30              updates             35 k
 langtable-data               noarch            0.0.42-1.fc30              updates            1.1 M
Skipping packages with broken dependencies:
 python3-langtable            noarch            0.0.42-1.fc30              updates             30 k

Transaction Summary
====================================================================================================
Skip  6 Packages

Nothing to do.
Complete!

Is there anything particular to do due to grub update fail during update?

Thanks in advance,

Gianluca