On 10/22/26 2:25 PM, [email protected] wrote:
GPT.
But the partitions itself were formatted as MBR.
I dont know how this works - maybe protective mbr?

Internet mentions for protective mbr:
A GPT disk always has a "protective MBR" placed in LBA 0 purely for legacy tools so they don’t mistake the unreadable GPT disk for an unformatted drive, though it does not contain actual MBR

Sounds as you have a GPT disk.

In the Bios I tried both, to boot from legacy and dual.

Then I would choose dual.

Right now I also have the problem, that the bios does not recognize my main partition anymore: I reset the BIOS Boot Order, and now all other drives show up (which wasnt the case before), but not the one, that should boot.

Maybe the drive is also corrupted?

I can't get physical access though right now - only IPMI, but it also does not let me mount virtual media because I need some kind of supermicro licence.

... :(

The server has more than one physical drive ?

Also is it a multi-boot system ?

virtual media ?

And moreover how could you install GRUB on a not booting system ?

Regards, ~Z


Zitat von Zerro <[email protected]>:

On 10/22/26 9:16 AM, [email protected] wrote:
Hello,

I switched my boot partition, changed its label from "legacy_boot" to "bios_grub" (grub-install wouldnt work otherwise).

I have a btrfs root, and my boot partition is ext4 (I don't know why someone did that, I just inherited it. But it worked in the past.)

I did a grub-install /dev/nvme0n1 and a grub-mkconfig -o /boot/grub/grub.cfg and added the parition to my fstab to mount as /boot.

Now when I boot, it only shows "GRUB _" (with a blinking cursor after it), and I cannot input anything. I have a supermicro server and I am accessing the server on its remote console.

Can anyone help me debug this? (Supermicro remote console is also kinda shitty, tbh)

Best,
Lucienne


May I ask is that disk a MBR or GPT partitioned disk ?

The Arch GRUB Wiki page mentions different installation instructions for GRUB GPT UEFI and GRUB MBR.

Also the BIOS should be instructed to use the right UEFI or legacy MBR ?

Regards, ~Z


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