I messed up my bootsystem

I had Manjaro installed on the first SSD drive on partition /dev/sda4/
I have two SSD drives.
On the second SSD drive i installed AV-linux on partition /dev/sdb4/ there was 50 Gb of space available.
Before the installation i have made a timeshift snapshot and after grub-update the snapshot was available in the grub menu.
I don’t know what i did wrong but after that installation it booted back into the grub, and there i could choose which OS to start.
The Manjaro entry was still there, actually the grub menu was exactly the same as before installing AV-linux.
But when i choose Manjaro, it starts up in an emergency mode, i can enter my password and then i am in a kind of terminal.

My question is, how can i get the gui from Manjaro back?

Thanks jean.

Including the snapshot you made?

Do you mean your account password or a LUKS password?

Yes indeed

With my normal password, i don’t know what a LUKS password is.

Anyway, i now have installed Manjaro 25.07 “ZETAR” over the AV linux partition.
At the end of the installation of the new manjaro os, the grub found the two other os’s Linux Mint and FXLinux, but it does not find the old Manjaro installation.
When i execute the updates (1.7Gb) it gives an error, ‘fout tijdens instellen van plymouth-theme-manjaro’ /etc/mkinitcpio.D
When i restart the system, it goes into grub rescue mode.
So i reinstalled Manjaro on the same partition, but disabled the updates for now.
In the new installation i have set the installation on /dev/sdb5 and the root / at /dev/sda/
I am wondering why with a sudo update-grub it does not find the manjaro installation at /dev/sda4/, because it is still there, also the snapshot.

So what can i do to get the old Manjaro installation back, because it is a hole lot of work to tweak the new installation to my liking, all the software packages, settings at cetera.

That’s good. This means that you’re still using Manjaro’s grub, and that the snapshot is available for restoration, if need be.


LUKS is an encryption framework for encrypting your drive. But if it’s your normal password, then this means you are effectively logged into your system, and that the problem is that your display manager — i.e. your graphical login screen — is not running for some reason.

plymouth is a splash screen to hide the boot messages. It’s actually quite buggy and it only slows down the boot process, so I would advise you to uninstall it. You may need to edit /etc/mkinitcpio.conf in order to remove the plymouth hook and then rebuild your initramfs with “mkinitcpio -P”.

/dev/sda is the drive itself, not a partition.

There could be several reasons for that, but the most common one is that you have a mix of systems which boot in native UEFI mode and systems which boot in legacy BIOS mode (CSM).

Also, with regard to the display manager issue, which Manjaro edition are you using?

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Manjaro 25.0.7 Zetar

How can i check or solve this? It is possible that AV linux used the UEFI mode, normally i use legendary mode.

Um, no, that is not what I was asking. Which desktop environment or window manager are you using?

  • Plasma
  • GNOME
  • Xfce
  • Cinnamon
  • i3
  • Sway

…?


[ -d /sys/firmware/efi ] && echo UEFI || echo BIOS

Xfce desktop environment

BIOS mode

You’ll have to do that in each of the installed systems. I suspect they will be different.


And you wouldn’t happen to have an Nvidia GPU, would you?


Please see… :backhand_index_pointing_down:

Tips and Tricks

How to Request Support

Resources

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No i don’t have Nvidia.

If i use the old Grub entry to start the old Manjaro os, the three points start flashing for several minutes and then i get this.

You are in emergency mode. After logging in,
type “journalctl -xb” to view
system logs, “Systemctl reboot” to reboot,
or “exit” to continue bootup.
type het rootwachtwoord voor onderhoud
of druk op CTRL-D om verder te gaan):

If i then enter my password i get something like a terminal
prompt, and when i type “exit” it says
reload system manager configuration
starting default.target

Then after a minute or so the systems comes back to the beginning…
You are in emergency mode…etc

Is there no way to rescue my Manjaro installation?

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