Cannot Boot Into Mageia 8

[geirmund]

I just installed Mageia 8 on my AMD system. It installed without incident, but when I rebooted, it only loaded my other OS - WIN10. Grub did not load. Went into BIOS, made sure Hard drive was selected as first priority, MBR Is on the drive. I set Grub to load to EFI (not doing it made it crash). Am I missing something?

[JoesCat]

Read through this information:
https://wiki.mageia.org/en/Installing_o ... I_firmware

If you were running only linux, and a drive smaller that 2TB, you would be okay using MBR and the old BIOS bootup.
Since you are running Win10 (or higher) as another OS on the same computer, your choice has to be UEFI bootup, therefore you need to install Mageia as UEFI too.
UEFI has some potential benefits for modern hardware too, like for SSDs, therefore you might as well take advantage if you can.

I would recommend updating the computer BIOS to latest version before starting, to avoid potential pitfalls in older versions of BIOS.

[doktor5000]

According to what I am seeing, I am in EFI mode. There is a mount point called /boot/EFI. I also disabled fast windows loading. I am looking at Magea's partitioning screen (using custom partitions). I am not sure what to do next.

[Germ]

Did you check for a BIOS update? If there is one did you update?

[geirmund]

BIOS is updated to latest version.

[sturmvogel]

Secure Boot disabled in BIOS?

[benmc]

what is the contents of

Code: Select all

boot/EFI/

?

(or

Code: Select all

boot/EFI/EFI/ 

depends on h/w)
use a live system to access this info.

[JoesCat]

Glad to read you updated BIOS before going down this rabbit hole. Dual boot is not for novices.

but when I rebooted, it only loaded my other OS - WIN10. Grub did not load.

Reading your message again, this is interesting to note. If you did not see GRUB, then it sounds like Secureboot said "NO!"

Please follow up on this.

Secure Boot disabled in BIOS?

Sometimes alternative bits of info help.... I found this right now, but I'm sure there are other sources
https://itsfoss.com/guide-install-linux ... t-windows/ you probably want to look through the secureboot mentioned on this page https://itsfoss.com/disable-secure-boot-windows/

With the older BIOS method, the computer would simply begin running whatever it found on the first sector of the marked partion on the harddrive, this would either be the OS, or GRUB, LILO, or other boot managers, which would then load windows kernel or linux kernel on that partition.

The way UEFI works is it first needs to checksum of the file or partition before it even runs it. If the checksum is okay, then it runs it.
In this case, with linux, there is a boot/EFI directory with that info, so the path is more like UEFI->boot/EFI->GRUB->linux_kernel
It's an extra step, but once you get to seeing Grub, you are a lot closer to getting dual boot working.

[geirmund]

Here is a shot of my EFI partition

[benmc]

thanks for that.

looks like both Windows and Mageia are installed in UEFI mode.
It may require that you copy the Mageia directory (folder) entry into the *Boot* directory (folder). There should already be a Windows entry in there.

Issue is not the install, but a bios setting and it may just be the UEFI implementation- you may not be able to change it.

There may be a *Hot* Key (F1-F12) that will allow manual selection of boot. check with your user manual.

[morgano]

I remember that on my wifes laptop i had to go into "BIOS" settings and mark what it was allowed to boot. I forgot what it was called, something about security.

[geirmund]

Tonight I will get into my BIOS and disable Secure boot. I will also copy the files as well if that alone does not solve it. In the meantime, I can still enjoy Mageia on my VMware.....