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Can't enter BIOS after Debian Install with dual boot

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GasparB123
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Joined: 2021-04-14 14:06

Can't enter BIOS after Debian Install with dual boot

#1 Post by GasparB123 »

I have an Acer Swift 3 sf314-52 with a 256 GB SSD. I recently bought a new 256 GB SSD to add into the extra M.2 slot. It works fine and was recognized in BIOS. After this I installed Windows 10 and after it Debian, each OS on a different SSD.

The problem now is, that I want to change the boot order so that Debian starts first, so it can give me the choice of what to boot from using GRUB, but I cannot access the BIOS anymore. Pressing F2 leaves me with a black screen and a white dash on the top left corner. Luckily I activated the F12 boot menu and that works fine. I opened each OS separtely and they both work without any problems as far as I can see.

I've tried opening BIOS from windows advanced settings, from GRUBs option as well, it all gives me the black screen with white dash.

Wiping either drive will solve the problem, but then again that is not what I need.

I don't know what the problem is. I rarely enter BIOS but I don't want to have to press f12 everytime I want to boot Debian. If anyone can give me a hand it'd be much apreciated.

p.H
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Re: Can't enter BIOS after Debian Install with dual boot

#2 Post by p.H »

Installing Debian after Windows should have made Debian boot first.
EFI or legacy boot ? If EFI, what is the output of "efibootmgr" as root ?

GasparB123
Posts: 3
Joined: 2021-04-14 14:06

Re: Can't enter BIOS after Debian Install with dual boot

#3 Post by GasparB123 »

p.H wrote:Installing Debian after Windows should have made Debian boot first.
EFI or legacy boot ? If EFI, what is the output of "efibootmgr" as root ?
That's what I thought, I have used Ubuntu before and it does just that. Both are installed in EFI.

Here's the output:

gaspar@gaspar-debian:~$ efibootmgr
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0002,0001,2001,2002,2003
Boot0001* debian
Boot0002* Windows Boot Manager
Boot0003* USB HDD: KingstonDataTraveler 3.0
Boot2001* EFI USB Device
Boot2002* EFI DVD/CDROM
Boot2003* EFI Network

p.H
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Re: Can't enter BIOS after Debian Install with dual boot

#4 Post by p.H »

Did you try to make Debian first in the BootOrder ?

Code: Select all

efibootmgr --bootorder 0001,0002,2001,2002,2003
Last edited by p.H on 2021-04-14 19:22, edited 1 time in total.

GasparB123
Posts: 3
Joined: 2021-04-14 14:06

Re: Can't enter BIOS after Debian Install with dual boot

#5 Post by GasparB123 »

p.H wrote:Did you try to o make Debian first in the BootOrder ?

Code: Select all

efibootmgr --bootorder 0001,0002,2001,2002,2003
I tried it, but it opens windows, when I get back to debian it's reversed again.

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