After updating system and changing kernel to zen one, system not booting

[tankas]

Hi, I did the updates. Ran akm, selected the Zen kernel, and being noob de-selected the standard kernel.

Now cannot boot into the OS. Even if select the fallback kernel.

I have an installation USB, can arch-chroot.

How can I fix this, please help.

---

extra/linux-zen 6.5.8.zen1-1 [installed]
    The Linux ZEN kernel and modules
extra/linux-zen-headers 6.5.8.zen1-1 [installed]
    Headers and scripts for building modules for the Linux ZEN kernel

[tankas]

[…@EndeavourOS /]$ journalctl -b -0 | grep fail | eos-sendlog
==> eos-sendlog-helper: warning: nothing to send.

[…@EndeavourOS /]$ grep -i upgraded /var/log/pacman.log

[2023-10-21T17:01:24+0100] [ALPM] upgraded archlinux-keyring (20230918-1 -> 20231017-1)
[2023-10-21T17:03:29+0100] [ALPM] upgraded adwaita-cursors (44.0-1 -> 45.0-1)
...

[Stephane]

can you provide

inxi -Fza

you should run akm under chroot or add kernel & kernel-LTS

pacman -S kernel kernel-headers
pacman -S kernel-lts kernel-lts-headers

[tankas]

@Stephane

can you provide

inxi -Fza

[tank@EndeavourOS /]$ inxi -Fza
12System:
 ...

[tankas]

@Stephane

you should run akm under chroot or add kernel & kernel-LTS

pacman -S kernel kernel-headers
pacman -S kernel-lts kernel-lts-headers

I tried it first thing when I arch-chroot it.

[root@EndeavourOS /]# akm
[root@EndeavourOS /]# ==> Config file /etc/akm.conf read.
==> Info: detecting available kernel packages.
Authorization required, but no authorization protocol specified


(yad:66): Gtk-WARNING **: 11:48:34.311: cannot open display: :0.0
/usr/bin/akm: line 521: : command not found

[@EndeavourOS /]$ akm
[@EndeavourOS /]$ ==> Config file /etc/akm.conf read.
==> Info: detecting available kernel packages.
Authorization required, but no authorization protocol specified


(yad:162): Gtk-WARNING **: 11:51:18.158: cannot open display: :0.0
/usr/bin/akm: line 521: : command not found

[pebcak]

@tankas

(yad:162): Gtk-WARNING **: 11:51:18.158: cannot open display: :0.0
/usr/bin/akm: line 521: : command not found

akm is an application with graphic interface. You can’t run that in chroot.

Supposing your are correctly chrooted into your installed system, I would suggest to run a full update of your system:

pacman -Syu

and then (re-)install your kernels.

For LTS: pacman -S linux-lts linux-lts-headers

For Zen: pacman -S linux-zen linux-zen-headers

Pay attention to the output. If you get any error message post them here.

If not exit chroot and reboot your system.

[tankas]

@pebcak

Supposing your are correctly chrooted into your installed system, I would suggest to run a full update of your system:

pacman -Syu

and then (re-)install your kernels.
For LTS: pacman -S linux-lts linux-lts-headers
For Zen: pacman -S linux-zen linux-zen-headers

Pay attention to the output. If you get any error message post them here.
If not exit chroot and reboot your system.

The suggested commands were executed successfully, but only under root, not using my user account.
After rebooting I still can see only one kernel and it fails to boot as per screenshots bellow.

I’m investigating if I did chroot correctly.

[pebcak]

@tankas

The suggested commands were executed successfully,

Alright. Chroot again and regenerate your grub.cfg:

grub-mkconfig -o /boot/grub/grub.cfg

@tankas

I’m investigating if I did chroot correctly.

If you need assistance for chrooting, from the live session, post the output of the following command and indicate which is your system/root partition:

sudo parted -l

[tankas]

Worked like a charm. Thank you a mill pebcak

steps for solution:

arch-chroot
pacman -Syu
pacman -S linux-lts linux-lts-headers
pacman -S linux-zen linux-zen-headers
grub-mkconfig -o /boot/grub/grub.cfg