Unable to restore grub

[AwesomeIronman]

Currently I only get “Welcome to grub” when I start my machine
Meaning GRUB is not listing installed OS

All of this started after a pacman -Syyu update:

Error: Initramfs unpacking failed
Unable to mount rootfs on unknown block

Now please help me get back my GRUB menu
pacman -Syyu shows multiple warning messages for eg.:

warning: grub-2.04-22 is up to date -- reinstalling
:: Starting full system upgrade...
warning: alsa-card-profiles: local (1:0.3.25-1) is newer than extra (1:0.3.24-1)
warning: android-tools: local (31.0.0-1) is newer than community (30.0.5-3)

and ends with:

:: Processing package changes...
(1/1) reinstalling grub                                                           [###############################################] 100%
:: Running post-transaction hooks...
(1/2) Arming ConditionNeedsUpdate...
(2/2) Updating the info directory file...

But nothing really happens

[realmain]

@AwesomeIronman

warning: alsa-card-profiles: local (1:0.3.25-1) is newer than extra (1:0.3.24-1)
warning: android-tools: local (31.0.0-1) is newer than community (30.0.5-3)

Did you by any chance swap from unstable to stable or testing?

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https://wiki.manjaro.org/index.php?title=GRUB/Restore_the_GRUB_Bootloader

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Alternatively, you can use Manjaro Architect and restore GRUB this way. Just select GRUB instead of rEFInd at the end.

I want to choose an alternative for grub, any suggestion?

IMO, the easiest way to install rEFInd on a preinstalled system is to use Manjaro Architect LiveISO. Though you can use any LiveISO and launch Manjaro Architect within it. NOTE: These are older images, but the layout is the same. Once you get into Manjaro Architect: Go to Prepare Installation [image] Go to Mount Partitions 2a. It should ask you to mount / and also /boot/efi at the end [image] From the same image above, go to Back You’ll be back at this screen, and go to System …

[megavolt]

Hello @AwesomeIronman

It seems you have not recreated the initramfs… I would suggest the following:

1. Boot into a live session with the manjaro boot disk
2. Open a terminal and type manjaro-chroot -a
3. Then pamac upgrade --force-refresh --enable-downgrade
4. Then sudo mkinitcpio -P
5. Then sudo update-grub

[AwesomeIronman]

I don’t know how to change update branches, never done so
I did as you told:

root # grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro --recheck
root # grub-mkconfig -o /boot/grub/grub.cfg

And now GRUB is working as expected

[AwesomeIronman]

Thanks @megavolt that seems to have fixed pacman -Syyu warnings now
I didn’t had to chroot since I had full system access (it was bootable)