Questions tagged [bios]

Questions about modifying the system's BIOS to make it fit Ubuntu's need, or questions about recovering Ubuntu after a BIOS modification. Note that questions about accessing the BIOS should not be asked.

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Login Password, Grub Password or Bios Password

I found that Ubuntu login password can be easily reset as mentioned in this article: Reset Your Forgotten Ubuntu Password in 2 Minutes or Less I was wondering if there are alternatives to this. Is ...
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Fn + Arrow key map issue in Ubuntu

I just bought a Dell Inspiron and one of the best things about Dell is that they map Fn + Left to Home and Fn + Right to End. But in this new laptop, that mapping works properly on Windows but behaves ...
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Keyboard, wifi and bluetooth not working

I ran into this rather interesting problem this morning: when booting up my laptop (HP Zbook 15 G3), my (built-in) keyboard, wifi and bluetooth all stopped working. I use ubuntu 18.04. In settings, ...
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Added RAM memory is not recognized : dmidecode shows no added new RAM info and free command does not increase the free size

Environment Info Ubuntu ver : Ubuntu 18.04.3 LTS Mother Board : SuperMicro C9X299-PG300F Initial RAM size : Total 16GB, one 16GB card at one slot RAM type : MTA16ATF2G64AZ-2G6E1 Current status I ...
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Grub Rescue Dualboot Problem Ubuntu 20.04

I installed Ubuntu 20.04 LTS in a dualboot with Windows 10(Dell Latitude E6430) During the installation process I chose ubuntu's Install Alongside Windows option. Both OS are installed in legacy ...
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42 views

How do you check if processor.max_cstate is set correctly using terminal/tilix?

I have a ryzen cpu and my cpu has been freezing/crashing a lot over the years and I couldnt' find a solution until recently and I'm told setting the max_cstate should solve my issue. But how do I ...
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174 views

WSL2 / Ubuntu 20.04 (Windows build 2004) (bootcamp) setup fails with errr code 0x80370102

The first thing I did, was enable WSL in the Windows Features dialog, then I installed Ubuntu 20.04 from the store. Befote doing anything else, I found an article WSL Kernel that said that I should ...
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Problem installing any distro of linux, AMD problem?

I've tried Ubuntu, Fedora, CentOS, USB and DVD ISO. But every time I have several problems, for example: kernel panic attempted to kill the idle task kernel panic not syncing AMD-Vi completion-wait ...
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Ubuntu 20.04 doesnt start since apt upgrade

I have an old notebook with dual-boot and legacy BIOS. Win10 installed first, then Ubuntu 20.04. I have made an "apt upgrade" on 13.05.2020 Wed. Normal Shutdown after that. Unfortunately Ubuntu doesn'...
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Deleted the dev/sda1 file and restarted the computer

I accidentally deleted /dev/sda1 file and restarted it and it says no bootable devices available please restart is there anything i can do now to get all my files back i can enter the bios mode
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Upgrade to Ubuntu 20.04 on iMac2009 failed - getting only an underscore with black screen

I am not able to get into the BIOS of the iMac to adjust either to reload older version of Ubuntu or to fix the graphics drivers. I have tried all of the iMac commands to get into it. What else can ...
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Ubuntu showing 13.7 GB of RAM when I have 16 GB

I'm running Ubuntu 19.10. I have a system with 16 gigabytes of DDR4 RAM. Ubuntu itself only shows that I have 13.7 gigabytes of ram: total used free shared buff/...
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bios_grub flag missing

I am a novice in the Linux community. This is actually my first post on StackExchange. I was attempting to follow these instructions to do a full install of Ubuntu 20.04 on a USB flash drive. ...
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powercap intel-rapl:0: package locked by BIOS, monitoring only

I am trying to replace value in the file of constraint_0_power_limit with new value using echo "45000000" | sudo tee constraint_0_power_limit_uw That file is under /sys/class/powercap/intel-rapl/...
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Neither able to boot ubuntu 20.04, nor able to reinstall from live usb

I am new to linux. I just baught Dell Vostro 15 3580 and I had windows 10 installed on it. I installed ubuntu 20.04 from usb. But now whenever I start my laptop , in first attempt the Dell logo doesn'...
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unknown filesystem error after reinstalling linux

After reinstalling 18.04 over 19.10 alongside Win10, the boot fails with the following error: error: unknown filesystem. Entering rescue mode... grub rescue >` From what I understood from similar ...
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Can we set ON a device which is OFF in the BIOS

I use Ubuntu Studio 19.10 (I'm still waiting for the 20.04 upgrade, it seems to be not available in my country, yet). In the BIOS system of my Laptop, I set OFF the internal Webcam and Microphone (...
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My BIOS settings don't boot ubuntu 20.04 and I don't know what to change

I have: 100gb /root ext4 6gb swap 300mb esp /boot efi Three 200gb ntfs partitions And 300gb /home ext4 I've installed the Ubuntu perfectly but my gigabyte motherboard can't boot it. This is not a ...
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EFI settings cancel after boot from Windows

I have Ubuntu 20 installed on my laptop as the second OS. I changed EFI settings in BIOS (of course, I saved them) and set ubuntu to the first place to choose which system I want to work with when my ...
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Ubuntu 20.04 on HP Pavilion 15-n055sm Notebook PC, how to fix/Update BIOS?

please HELP...this is a very similar issue to: How to perform a HP BIOS upgrade with only Ubuntu? I've tried it all above, and can't seem to boot from exe. since my HP PC hardware Diagnositics UEFI ...
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Install Windows after Ubuntu ? + Grub doesn't appear

I recently tried to install a dual-boot Windows 7/Ubuntu 18.04 on my computer. But I didn't notice that my installation of Windows wasn't compatible with dual-boot installation (because I installed in ...
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108 views

UBUNTU 20.04 I Installed on USB Does Not Boot Properly

As I mentioned in the title, I installed Ubuntu 20.04 version on USB and use it via USB. But when I restart or shut down the computer, when I select Ubuntu after GRUB, I get the following error. Here ...
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What to do if i skipped mok management twice?

system info - Linux xxxxx 5.4.0-28-generic #32-Ubuntu SMP Wed Apr 22 17:40:10 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux. grub 2.04 I did the typical sudo apt update && sudo apt upgrade ...
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How to determine BIOS age in Ubuntu

My computer is old and it sometimes will not power on. Is there a way to find its age, perhaps by looking at the BIOS installation date, in Ubuntu? I am running Ubuntu 14.04.
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I want back my 16.04 software without update

My laptop is Lenovo E41-15. When I update 16.04 my screen is showing Ubuntu has been blocked by the current security policy. OK. Error. Verification failed: (15) Access denied. OK. Default boot ...
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37 views

Windows live usb boot falied

I am unable to boot into my windows live usb after Installing Ubuntu (single boot) on my PC. Whenever I try to boot into windows live usb it says Reboot and select a proper boot device or Insert boot ...
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“Verifying DMI Pool Data” while trying to boot with Lubuntu

Today I decided to install on my old PC Lubuntu 18.04. Recently I've messed up with installation: for some reason my old PC can't see bootable USB, after I messed up with installation -- I tried ...
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ASUS battery health charging working on ubuntu 19.10 but not working on ubuntu 20.04

I had Windows 10 and Ubuntu 19.10 dual boot on my asus laptop. There is a Windows application for Asus laptop that you can set some settings that the battery does not charge over 60% when charger is ...
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233 views

Ubuntu 20.04 RST Issue with no access to Advanced BIOS options

Installing Ubuntu 20.04 on dual boot windows HP Envy consumer laptop. Got the error to disable RST. Consumer HP lap with insyde bios f.47 which does not allow "Advanced option" to disable RST and ...
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38 views

Accidentally skipped MOK manager screen after being told to set up secure boot password

I attempted to install a dkms file through the terminal, but was told to set up a secure boot password. After doing this, the file installed seemingly correctly. During the set up, I was instructed to ...
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62 views

Did Ubuntu and Grub just delete my Windows data and life's work?

I'm pretty much having the same issue as this guy with the same exact system (HP+Intel MB+ Optane). I've had no issue live usb booting in the past but it seems like getting the job done is getting ...
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Installation failure Couldn't get size: 0x800000000000000e: Hardware Error [duplicate]

I use Windows in my HP 240 G5 laptop which has an upgraded BIOS. When trying to install Ubuntu 18.04, but this error occurred:
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117 views

Ubuntu 18.04 issues after updating BIOS

My laptop is Lenovo Legion Y540-15RIH. I use windows 10 and ubuntu 18.04 dual boot. Before this update, everything was OK. GRUB was opening after starting the computer, and WiFi on ubuntu was working ...
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Output of Reading Hex from HD has “@^” repeating

I'm trying to wipe a computer that may have had some nasty malware on it. Not sure if it impacted the BIOS as well but I saw Chinese characters in the BIOS at one point and other stuff. When turning ...
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28 views

keyboard is not getting readed after removing ubuntu from dual boot

keyboard is not getting readed after removing ubuntu from dual boot.and I am not able to browse through the bios settings and stuck in grub command,but I can't type in it, please help
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49 views

Consequences of disabling fwupd

I'm running Ubuntu 18.04 LTS on a Dell XPS 15 9550. Ubuntu Software Updater updated the system BIOS to 01.13.1, and I immediately experienced a large slow-down in all software with a graphical ...
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Ubuntu not showing its self on BIOS System

I have lenovo T420 i5-2nd gen machine. I have install ubuntu in it rufus in it and get the usb bootable but when i booted the system it doesn't show me the ubuntu on booting.... I have tried lots of ...
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84 views

Ubuntu doesn’t load after restoring BIOS

I tried to test something I inadvertently restored the BIOS setting. Now when I press on the power button to turn on the system Ubuntu doesn't load. The only thing that displays is this message. I ...
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34 views

Bad boot error and superblock [duplicate]

I was about to spend the next 3 hours playing CSGO, but the Steam client wouldn’t launch. I tried launching it from the command line interface, but there was an error saying that ~/.steam/error.log ...
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45 views

System lagging when power plugged

After upgrading the bios to version 1.13.1 I am experiencing system lagging when I plug the power cable. The system is ok if I turn it on on battery or already plugged in. It seems to be affected only ...
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59 views

Ssd missing operating system

I have ubuntu installed in my ssd and I use it in an old notebook, but I have a better one so I tried to boot the ssd in the newer one but its giving me the Missing Operating System message. I have it ...
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26 views

Hard disk is not recognized by BIOS after a clean in recovery mode of UBUNTU!

My laptop had a dual boot with windows 10 and Ubuntu 18.04LTS. My Ubuntu partition was low on space, when I tried to boot into ubuntu system it showed some error which suggested that I was low on ...
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1answer
28 views

Changing Languages on Login / BIOS Screen

I recently installed Lubuntu on one of my old PCs, and put in a password in English. The next time I opened my computer and was asked for my password only the Hebrew keyboard was available, leaving me ...
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55 views

Error on resume from suspend system

When I suspend my system, be it by closing the lid or by pressing the power button, the system has problems on resuming. It stays stuck in a black screen with error messages and freezes for a long ...
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Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning is still MBR

If 'UEFI Boot Support' is enabled in BIOS (was previously disabled) and if the 'Partitioning' is still 'MBR' then: Would the OS boot? If it boots, would there be any performance improvement? Are ...
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New dual boot installation Ubuntu on Windows 10 not booting

When trying to install my dual boot - Ubuntu & Windows 10. I got this error "no efi system partition was found", so went back and created a FAT32 250mb space at this "/boot/efi" mount point. On ...
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66 views

Cannot install lubuntu (or any other distro) with usb on acer ES1-111-C3R9

I'm getting crazy with this, I have installed 1 million linux distros in my life but can't with this pc. I have tried EVERYTHING, now I gonna put the list of the one million things I tried. pc: acer ...
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My pc broke after updating

After installing Ubuntu and updating from software updater... It took more than 10 mins to boot with only black screen so I pressed the power button and restated and that what I got it doesn't show ...
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I deleted Windows and now I get a checking media fail message. If I hit F12 I get only Network Boot-IPV4 or IPV6 as options

I have installed Ubuntu on a >5year old Acer from a USB stick. The trial version worked fine. (Well, it freezes if I use Facebook for more than 5 minutes, but that's another story). I installed it and ...
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Dual boot with Windows black screen

after installing dual boot something go wrong. When I press power button led controls and fans go on but BIOS not loading. Notebook HP Pavilion DV6-6030EC

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