How to open the console in Linux operating system at the stage of entering a password?

Question

linux

Conditions and purpose
Download the console
The bios has a password.
It is necessary to boot into the console before loading the BIOS or already in the loaded system.
Account password unknown.
The root password is unknown.
Operating system - OPENSUSE 42.3
You need to open the console from the operating system.
Questions
Is it possible to start the console at the stage of entering a password. If so, how?
Is it possible to boot the console to bios?
How to enter the file system from the console?
If you can't log into the file system, how can you open a text file directly in the console?
Where can I find my account password?
How to reset bios password?

Answer 1

Is it possible to start the console at the stage of entering the password. If so, how?

Press Alt + Ctrl + F1 - you will be taken to the console, to the stage of entering a login name / password.
The BIOS has nothing to do with the console/OS. And no, it first works out the BIOS (pulling all the computer hardware), then the execution is transferred to the OS, which has a console.
You don't need to log into the file system. Once in the console, you can do anything with the file system, and with the files / directories on it.
The simplest one is to launch (if installed) Midnight Commander with the command mc. And it's getting used to...
In the brain of the administrator(s). If there is no access there, then "crack" the password: either through rescue mode, or by booting from USB / CD.

Answer 2

Before the bios, you can't. Before loading OS - it is possible, in rescue mode. You can also reset your password there.
For example: https://docs.fedoraproject.org/en-US/quick-docs/re...

Answer 3

Is it possible to boot the console to bios?

no
And so - the console of what? Installed axle? You can boot from live - sometimes you don’t even need to enter the BIOS for this.
Password from what? What axis?
In general, you have a lot of questions, and even more clarifications are needed.

Answer 4

You need to boot into the console before loading the bios

Impossible. Prior to loading the BIOS is a brick.
All your questions can be reduced to one thing - there is a password-protected computer that you need to get into.
Just in case, I remind you about Criminal Code 272 - this is just about your case.
And now for the technique.
The BIOS is reset either by removing the battery (if any) or by a special jumper on the mother. True, it is not a fact that this jumper will reset the password :)
You can reset the password of any account by booting into rescue mode. To do this, while the bootloader is displayed, press something other than the input and read what is written on the screen (the devil knows what kind of bootloader you have there). There will probably be written how to edit the kernel boot line. Usually, single or emergency is added at the end, after which the system boots in simplified mode.
And there already change it as you like - through passwd or directly enter the hash into /etc/shadow pretty much the same)

Answer 5

Before entering the BIOS password, you will not start anything on the computer.
But resetting this password is easy. Enough to google how it's done. Unless, of course, there is physical access to the giblets of the computer.