Hello,
I hope someone can help me with the issue below. The latest kernel update caused problems with my GRUB configuration, but I managed to get it working again by re-creating GRUB.
Now, when I boot, the GRUB menu appears with a list of kernels:
6.11.8-1.el9.elrepo.x86_64
6.11.7-1.el9.elrepo.x86_64
6.10.2-1.el9.elrepo.x86_64
5.14.0-427.42.1.el9_4.x86_64
Using grubby, I confirmed the following list of installed kernels:
index=0
kernel="/boot/vmlinuz-6.11.8-1.el9.elrepo.x86_64"
...
index=3
kernel="/boot/vmlinuz-5.14.0-427.42.1.el9_4.x86_64"
I want to make the kernel at index=3 - 5.14.0-427.42.1.el9_4.x86_64 the default. I used the following commands:
[root@ws3 ~]# grubby --set-default=/boot/vmlinuz-5.14.0-427.42.1.el9_4.x86_64
[root@ws3 ~]# grubby --default-kernel
/boot/vmlinuz-5.14.0-427.42.1.el9_4.x86_64
[root@ws3 ~]#grub2-mkconfig -o /boot/efi/EFI/almalinux/grub.conf
[root@ws3 ~]#reboot
However, nothing changes. The GRUB menu still appears on boot, and after 5 seconds, it selects the first kernel 6.11.8-1.el9.elrepo.x86_64.
My /etc/default/grub` looks like this:
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_SAVEDEFAULT=true
GRUB_DEFAULT=3
#GRUB_DEFAULT=saved
#GRUB_DEFAULT=false
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M resume=UUID=3809b849-9737-4abb-ad9d-4c47ee758df1 rd.md.uuid=8bb107a9:60b3b90c:ca752dbb:fe53bf1e rd.md.uuid=28846009:8e451f46:95a9426c:b7595c6d rhgb quiet selinux=0"
GRUB_DISABLE_RECOVERY="true"
GRUB_ENABLE_BLSCFG=true
It seems that setting GRUB_DEFAULT=3 has no effect. Is there a way to remove the 6.x kernels so that the 5.14.x kernel moves up the list and becomes the default?
I’d appreciate any guidance you can provide.
Many thanks for your time,
Kabamaru