Questions tagged [bios]

The Basic Input/Output System (BIOS) on an x86 PC is the firmware that performs the power-on self-test (POST) and initializes hardware.

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BIOS doesn't let me change Boot priority

I have an Insys M74T with Ubuntu 18.04.5 LTS installed and I want to install Linux Mint 20 Cinnamon over it using a bootable Pen Drive. I already did the bootable USB with Mint OS, however, when I try ...
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Is there a way to reset a bios password with a command prompt?

I bought a laptop recently with a unknown bios password that I need to reset. It is running pop os, I also do have access to the OS. I was wondering if there is any equivalent in Linux to the MS-DOS ...
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When there's no grub, how to change gpu kernal parameters?

I currently use dual AMD R9 gpus. However, I recently was forced to upgrade motherboards and to the next version of my linux distro. My old motherboard was BIOS based, and my new one is UEFI based. ...
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Serial device ttyS0 is missing after configuring BIOS for console redirect

I am running Alpine Linux on a device on which I was making use of a serial console configured on /dev/ttyS0 to login. I recently enabled console redirection in my BIOS so that I could use the same ...
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Thinkpad BIOS update: USB drive won't boot

I can't get a bootable USB drive to work when updating firmware for my Thinkpad x260 running debian 10. The steps that I've taken so far, to no avail, are: Downloaded the latest .iso from Lenovo ...
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Black screen when trying to install Linux Zorin on old laptop

Here's the situation: I have a 15-year-old laptop (Fujitsu LifeBook N6010) which I'm trying to get into good use for something. Since I can't install Windows 7,8,10 on it, I'm thinking of installing a ...
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RGB Stopped Working After Bios Reset (Ubuntu 20.4)

I have a Gigabyte X570 Aorus Pro Wifi motherboard that with two EK watercooling blocks (GPU and Pump) that have routinely cycled through RGB colors when turned on. When I boot into Windows 10, I can ...
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60 views

BIOS Password Reset - HP laptop

I have an issue creating VMs on CentOS using Boxes with the following error: Blockquote Virtualization extensions are unavailable on your system. Check your BIOS settings to enable them. Also, when I ...
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Ubuntu failed to boot due to acpi / bios error after updating bios through windows update

Failed to boot to ubuntu, Error occurred during file checking process. After 13.4 % completion it moves me to emergency mode. Problem occurred after updating bios through windows laptop -> Asus ...
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performed clear CMOS - but power/fan becomes off immediately

I asked an IT for help to perform clearing CMOS locally on the server. However, the the power would only stay on for less than a second and then shuts down. We don't know why it would happen and don'...
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Lenovo thinkbook 14 iml Bios

Can anyone please give me the one previous bios version of Lenovo thinkbook 14 iml. Unable to get my touchpad working in Linux.
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Test case for Deadline IO Scheduler

I am trying to measure the impact of Deadline IO scheduler on the performance of Block IO. My setup includes: Kernel Version: 4.4.154 Storage device: eMMC 64GB Distribution: VERSION="18.04.4 LTS ...
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EFI boot error: Please append a correct device “root=” boot option

I try to start the system (Kubuntu 20.04) without a Bootloader direct from the EFI/BIOS for faster boot. I compiled the Linux-kernel-5.8.5, copied and renamed the /usr/src/linux-5.8.5/arch/x86/boot/...
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Ubuntu 18.04 won't boot after booting from 20.04 live USB

This is a bit of a strange problem. I've been running Ubuntu MATE 18.04 on my Acer Aspire desktop for a few years now. I was thinking about wiping it out and installing Xubuntu 20.04, so I booted it ...
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Unable to access GRUb2 menu neither the BIOS

I have an ASUS with dual boot (ubuntu 16.04 and Windows10) for a while. These days it happens that the PC boot directly into linux. I tried all the possible solutions (start button/escape key , Start/...
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BIOS black screen when drives are connected [closed]

I probably messed up my bios settings some time ago and now I have a problem with it. When I try to access everything I see is just a black screen. And this happens all the time. It turns out that it ...
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Corrupt BIOS hw-PMU resources CentOS 7 Hp Proliant 310 but boots successfully

I just installed CentOS 7 on my HP Proliant 310 Gen8 Server. Everything looks fine, except the line of corrupt BIOS when CentOS is booting [Firmware Bug] The BIOS has corrupted hw-PMU resources (MSR ...
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446 views

What is the point of the kernel reserving CONFIG_X86_RESERVE_LOW memory for the BIOS?

Since at least 2.6 kernels, Kconfig offers the option CONFIG_X86_RESERVE_LOW, described as the "Amount of low memory, in kilobytes, to reserve for the BIOS". (Starting from physical address ...
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where are UEFI frimware code (compiled binary and source code) kept?

legacy BIOS programs were in ROM in the PC. and UEFI is being more used than BIOS. Where is the UEFI code(compiled binary form) kept? And are the UEFI drivers provided now by the OS? I would deeply ...
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OpenBSD installation script does not recognise SATA-connected drives

My question is one that has been posted here before but merits a new thread since the solution given did not work for me. During the OpenBSD installation, only one device is recognized as a candidate ...
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34 views

Old 2004 FreeBSD Box & SSH

Been years since putting backups on it. Now, need to get them off. Trying ssh & scp. The dreaded "no matching cipher" message. Yes, I would update it, if I could, but would rather not. ...
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How to make a hybrid Debian 10 Installer 32 bit to 64 CPU?

This is a problem with several solutions around the web, however, I didn't find any recent, not even for a Debian 8 or 9. In my Mac Mini 2007 without optical drive, the only systems I can boot are Mac ...
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No Internet: wireless interface disabled by bios kvm

I suddenly have had Internet get lost on me Woke up to having no WiFi or settings option in ububtu 18.04. Tried connecting router directly to laptop, didn't help. My /etc/network/interfaces: auto lo ...
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dmesg says: “Warning: Outdated ThinkPad BIOS/EC firmware … may be missing critical bug fixes”. Why is it being so alarmist?

Background I'm running Xubuntu 18.04.4 LTS on an ancient 32-bit ThinkPad T60. dmesg reports: [ 27.726785] thinkpad_acpi: ThinkPad ACPI Extras v0.26 [ 27.726789] thinkpad_acpi: http://ibm-acpi.sf....
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How to fix GRUB menu on kali linux after deleting ubuntu partition

I had a multiboot system with Windows, Kali Linux and Ubuntu After deleting the Ubuntu partition and restarting the pc I got a grub rescue message. When I entered the BIOS it told me that the Ubuntu, ...
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338 views

Unable boot into Linux after BIOS update (dual boot machine)

My notebook has dual boot setup using UEFI mode. Windows 10 (installed by default) and Linux Mint 19.3. It was running ok until a new BIOS update made by Lenovo Vantage. After updating BIOS in Windows ...
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How can Lubuntu 20.04 LTS be installed in a USB which can boot into both- UEFI & Legacy BIOS systems?

Self-explanatory question. But please keep in mind in totally new to Linux. I really request you to answer this as though you were hypothetically going to explain to a 12 year old. Im actually 38, ...
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157 views

Cannot access BIOS after installing Linux

Since I installed Linux on my old laptop, I cannot access the BIOS menu. I have tried fwsetup but I just get a message saying: Could not set EFI variable 'OsIndications'. I have also tried booting ...
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Can't get into BIOS. I messed up boot priorities and probably enabled fast boot

I have Ubuntu, Processor - Intel, Motherboard - MSI. Before all of this, I could get into BIOS by typing F11 when the it says enter F11. Now it's not even saying to enter F11. It's just a black screen ...
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No disk detected

The Problem I bought a laptop today (Acer Aspire 5), it came with windows 10. I am trying to install Centos8, but got a "No disks detected" message. What I tried 3 different distros (centos, gentoo,...
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Is there a way to mix these memory modules?

I'm trying to mix two 4Gb DDR3 modules from G.Skill with another two 4Gb DDR3 from a generic Chinese brand called Ankowall. The BIOS detects all modules and automatically clocks them at 1333MHz but ...
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Update microcode

I have almost latest intel CPU and my computer simply doesn't power off. dmesg: [ 4.761241] ACPI: Invalid passive threshold ... [ 7.329946] ACPI BIOS Error (bug): Could not resolve symbol [\_SB....
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BIOS won't boot Debian from USB

I know this is a common problem that has likely been addressed here before, but thus far none of the obvious solutions have worked. I'm trying to install Debian on my laptop (currently running Ubuntu)...
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198 views

What is the relationship between COREBOOT and SEABIOS

I am interested in investing in hardware that supports libreboot, and I understand that it's a fork of coreboot with firmware blobs removed, however I do not understand what seabios is. I did some ...
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602 views

Grub Error: Minimal bash like line editing is supported and no bootable os

I have a very old 2012 model of dell inspiron pc with 2 gb ram running windows 10. Today I installed Android x86 (dual boot with windows 10). I installed the grub bootlader in Windows directory. And ...
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255 views

kworker thread kacpid_notify/kacpid hogging 60-70% of CPU

I'm running Linux Mint, version 19 Tara. My battery life is really bad right now and my fan is always on because my computer is constantly at 70% CPU usage on this kworker thread. It's really starting ...
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Can I delete Ubuntu partition from dual booted PC if Ubuntu configured my UEFI Secure Boot?

I installed ubuntu along side windows 10 and kept the boot manager in the partition in which i installed ubuntu. So, by default, windows 10 boots. When I specifically go to boot menu and select ubuntu ...
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How to install Ubuntu on an external HDD partition?

I'm trying to install Ubuntu on my external hard-disk. Since I already have some files on that HDD, I created unallocated free space in order to install Linux on there. I am able to install it, ...
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Update BIOS on Dell XPS

I would like to upgrade the BIOS. I found here the last upgrade: https://www.dell.com/support/home/en-uk/drivers/driversdetails?driverid=w5c0w&oscode=wb64a&productcode=xps-13-9343-laptop&...
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How to find cause of fwupdmgr lagging for 72hr in Arch on a Lenovo Carbon X1?

A Lenovo Carbon X1 with Arch was getting its firmware updated using fwupdmgr following Lenovo (and Arch web site) instructions. The process, which already rebooted the machine a couple times, has ...
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Hardware error from APEI Generic Hardware Error Source

I have the following log: localhost kernel: {6}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 512 I want to know where to find the 512 mapping to something? Is that a ...
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348 views

Can't boot Windows 10 from GRUB

When I installed Zorin OS (which is based on Ubuntu) with dual boot windows after boot it went straight into Windows 10. I took a look at the bios boot order and it was the following. Windows Boot ...
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Cannot find bootable device - can't boot from USB - can't update BIOS - no grub

I was wondering if anyone could give me some advice on how to proceed with this faulty installation. I have Dell Inspiron 15 5570 that had a while ago Linux Mint installation on it. The installation ...
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How to boot Acer aspire 3 from external drive with lunix

I just bought a new laptop, an Acer aspire 3, and I'm trying to run my external hard drive on it. It has Linux mint installed in it. But I can't find the boot option on the bios. I've disabled the ...
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How to boot 32-bit Linux kernel on 64-bit UEFI system without CSM

I have a system on which I have to run a 32-bit Linux kernel, as it needs to interact with obsolete hardware which only have a 32-bit driver available. Changing the driver is not feasible. The Dell ...
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65 views

How to remove CentOS boot option in BIOS [duplicate]

I installed CentOS before and already change to Windows 10 now. But the boot option for the CentOS still in BIOS even after I formatted the hard disk. Any fix?
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131 views

Backlight adjustment controls not working

So, like many other users, I can't set the brightness of my laptop using Fn keys or the brightness controls on settings. I have tried all the solutions that I could fine but nothing happens. Updating ...
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Keyboard backlight makes the entire system bugged

I have a weird issue regarding of keyboard backlight. When I set it on in the BIOS and boot the system, the keyboard is all bugged. Like it automatically types and print keys without me doing anything,...
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KVM'ing a GPU: UEFI vs BIOS

I found this question on the site. GPU passthrough works with UEFI firmware but not Windows iso I am trying to figure out why nearly every guide I've found online from people who have successfully ...
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156 views

Grub keyboard doesn't work using fast boot

I am running Gigbyte Z97-HD3 mobo and Linux Mint 19.3. I also have another HD running windows 10. I usually use the grub boot menu to select my OS at start up. Today I decided to check what fast ...

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