Manjaro does not start from Grub dual bootloader

[MICAM]

Hello,
I am struggling ( as a new linux-Manjaro user) with a problem since last week, I did a lot of reading and searching for similar problems on this forum and i watched videos and I have no clue on how to get Manjaro up and running.

I have Manjaro ( KDE plasma) on a drive and I have Window11 on a second drive and I use Grub bootloader for dual boot ( see image 1)

This setup was working perfectly since may 2023 and since last week, I can no longer boot Manjaro . I can boot Window no problem. In Manjaro, I use mostly photo editing software so I do not make any changes to Manjaro configuration. The last time that Manjaro was working, I installed an Apimage of DigiKam. When i turned off the computer, Manjaro took a lot of time to shut down.

Now, when I boot Manjaro, I get an error message : «/boot/vmlinuz-6.1-x86_64» is not available and the kernel needs to be loaded (see image 2)

I found some information on grub commands to see if the configuration file was pointing at the right file structure ( hd0,gpt3) and it seems to be OK ( some videos mentionned possible file corruption in Grub.) ( see image 3)

Suggestions:

1 Should I try to reboot with an USB drive ? I am concerned that this will delete my partitions. I have a common partition with Windows (400 Gigs with data )

2 Any other suggestions or hints on what I can do to get Manjaro up and running ? ( There is a lot of documentation and ressources on how to fix a problem once Manjaro in up and running)

King regards and thanks for taking the time to read my message and make some suggestions or point me in the right.
Michel

[brahma]

this looks like a messed up update, you need to reinstall the broken kernel(s)…
boot into manjaro live usb, make sure you are connected to internet, open terminal and chroot:
manjaro-chroot -a
(this manjaro-chroot -a command doesnt work with btrfs and/or encryption…)
rerun update:
pacman-mirrors -f 5 && pacman -Syyu
if there are errors post the output here, if there are no errors and you are up to date, check output from:
ldconfig - (this should return nothing), if it does, run:
mhwd-kernel -li
and reinstall all kernels listed in the output, for example:
pacman -S linux515 linux61
if you are using nvidia, reinstall the modules too, for example:
pacman -S linux515-nvidia linux61-nvidia
if there were errors, post them here, if there were none, exit chroot:
exit
reboot

[MICAM]

Thank-you brahma for your fast response.
I rebooted Manjaro with a USB and followed your instructions and the following image shows all the commands and the results.

I exited and rebooted the PC and the same problem occures when I select Manjaro from Grub bootloader: Manjaro does not start.

I hope that you have a few minutes to help me out.

Kind regards
Michel

[cscs]

Well you didnt do any updates.
It failed with

error: failed to synchronize all databases (unable to lock database)

The mhwd command afterwards likewise failed for the same reason.

So … there is a problem and you did not make any changes.
Of course it is the same result when you boot.

Maybe you should remove the lock file and try again.

Ex:

manjaro-chroot -a 
rm /var/lib/pacman/db.lck
pacman -Syyu linux61
exit

[MICAM]

Hello CSCS,
Thank-you for your response, I entered your commands and the fail to synchronize error still occurs. see image:

Thank-you to take some time to suggest other command lines to help me out. All this is very new to me.
Regards
Michel

[cscs]

You have a typo.
You did not put a space between rm and the file path.
(thus nothing was deleted)
Though the error did change somewhat nonetheless, which is interesting.
Anyhoo … run the command(s) again please and make sure to include all the spaces.

@cscs

manjaro-chroot -a 
rm /var/lib/pacman/db.lck
pacman -Syyu linux61
exit

[MICAM]

Hi CSCS,
Now Manjaro boot fine but my Grub dual booter ( Windows and Manjaro) is gone. When I restrat my computer, the Grub does not appear and starts up Manjaro directly.
Is there a way to reinstall Grub dual boother?
Thank you for your help.
Regards
Michel

[cscs]

You may wish to run again

sudo update-grub

Otherwise you may want to investigate the options in /etc/default/grub.

[MICAM]

Hello CSCS
Thank-you for your good support. Everything works well, Manjaro, Windows and the dual bootloader.
Regards
Michel

[cscs]

Glad it worked out