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Search results “Grub boot kernel options”
Change GRUB Default Bootup Option - Linux CLI
 
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commands used: # refresh our grub just to be sure sudo grub-mkconfig -o /boot/grub/grub.cfg # find out which number we need to use. # remember to minus one since grub counts starting at zero. sudo grep "menuentry '" /boot/grub/grub.cfg | less -N q = quit # edit grub and put in the number you want to boot into sudo nano /etc/default/grub Ctrl+o, Enter, Ctrl+x = save changes # update our changes sudo grub-mkconfig -o /boot/grub/grub.cfg #check kernel if you wish uname -a inxi -S
Views: 40576 gotbletu
Linux Boot Process: Grub, initrd, explained.
 
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Learn the basics of Linux boot process: * BIOS * GRUB / GRUB2 * LILO * initrd (Initial RAM disk) * /boot directory in Linux * Linux kernel and kernel naming * The dmesg command and log file If you enjoyed this video, then you'll love our Linux Administration Bootcamp course: https://courses.linuxtrainingacademy.com/course/linux-admin-bootcamp/
Boot process in Linux
 
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Linux Booting Process Steps: 6 Stages of Linux Boot Process (Startup Sequence) Press the power button on your system, and after few moments you see the Linux login prompt MUSIC CREDITS :ON MY WAY KEVIN MACLEOD-IN COMPETECH.COM https://creativecommons.org/licenses/by/3.0/ ISRC: USUAN1600062 Have you ever wondered what happens behind the scenes from the time you press the power button until the Linux login prompt appears? The following are the 6 high level stages of a typical Linux boot process. 1. BIOS BIOS stands for Basic Input/Output System Performs some system integrity checks Searches, loads, and executes the boot loader program. It looks for boot loader in floppy, cd-rom, or hard drive. You can press a key (typically F12 of F2, but it depends on your system) during the BIOS startup to change the boot sequence. Once the boot loader program is detected and loaded into the memory, BIOS gives the control to it. So, in simple terms BIOS loads and executes the MBR boot loader. 2. MBR MBR stands for Master Boot Record. It is located in the 1st sector of the bootable disk. Typically /dev/hda, or /dev/sda MBR is less than 512 bytes in size. This has three components 1) primary boot loader info in 1st 446 bytes 2) partition table info in next 64 bytes 3) mbr validation check in last 2 bytes. It contains information about GRUB (or LILO in old systems). So, in simple terms MBR loads and executes the GRUB boot loader. 3. GRUB GRUB stands for Grand Unified Bootloader. If you have multiple kernel images installed on your system, you can choose which one to be executed. GRUB displays a splash screen, waits for few seconds, if you don’t enter anything, it loads the default kernel image as specified in the grub configuration file. GRUB has the knowledge of the filesystem (the older Linux loader LILO didn’t understand filesystem). Grub configuration file is /boot/grub/grub.conf (/etc/grub.conf is a link to this). The following is sample grub.conf of CentOS. #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/boot/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-194.el5PAE) root (hd0,0) kernel /boot/vmlinuz-2.6.18-194.el5PAE ro root=LABEL=/ initrd /boot/initrd-2.6.18-194.el5PAE.img As you notice from the above info, it contains kernel and initrd image. So, in simple terms GRUB just loads and executes Kernel and initrd images. 4. Kernel Mounts the root file system as specified in the “root=” in grub.conf Kernel executes the /sbin/init program Since init was the 1st program to be executed by Linux Kernel, it has the process id (PID) of 1. Do a ‘ps -ef | grep init’ and check the pid. initrd stands for Initial RAM Disk. initrd is used by kernel as temporary root file system until kernel is booted and the real root file system is mounted. It also contains necessary drivers compiled inside, which helps it to access the hard drive partitions, and other hardware. 5. Init Looks at the /etc/inittab file to decide the Linux run level. Following are the available run levels 0 – halt 1 – Single user mode 2 – Multiuser, without NFS 3 – Full multiuser mode 4 – unused 5 – X11 6 – reboot Init identifies the default initlevel from /etc/inittab and uses that to load all appropriate program. Execute ‘grep initdefault /etc/inittab’ on your system to identify the default run level If you want to get into trouble, you can set the default run level to 0 or 6. Since you know what 0 and 6 means, probably you might not do that. Typically you would set the default run level to either 3 or 5. 6. Runlevel programs When the Linux system is booting up, you might see various services getting started. For example, it might say “starting sendmail …. OK”. Those are the runlevel programs, executed from the run level directory as defined by your run level. Depending on your default init level setting, the system will execute the programs from one of the following directories. Run level 0 – /etc/rc.d/rc0.d/ Run level 1 – /etc/rc.d/rc1.d/ Run level 2 – /etc/rc.d/rc2.d/ Run level 3 – /etc/rc.d/rc3.d/ Run level 4 – /etc/rc.d/rc4.d/ Run level 5 – /etc/rc.d/rc5.d/ Run level 6 – /etc/rc.d/rc6.d/ Please note that there are also symbolic links available for these directory under /etc directly. So, /etc/rc0.d is linked to /etc/rc.d/rc0.d. Under the /etc/rc.d/rc*.d/ directories, you would see programs that start with S and K. Programs starts with S are used during startup. S for startup. Programs starts with K are used during shutdown. K for kill. There are numbers right next to S and K in the program names. Those are the sequence number in which the programs should be started or killed. For example, S12syslog is to start the syslog deamon, which has the sequence number of 12. S80sendmail is to start the sendmail daemon, which has the sequence number of 80. So, syslog program will be started before sendmail. There you have it. That is what happens during the Linux boot process.
Views: 74118 Linux Query
Howto Change Linux Boot Options and Splash Screen
 
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Don't like how ugly your PC looks when you dual boot? Customize how your computer boots with Grub 2 - ||Join the chat: http://on.fb.me/follownix || In this tutorial I show you the basic ways to configure your bootloader. Lots of things have changed since the upgrade from the original Grub, so check out this week's episode of OS.ALT to learn more about how to make your boot menu boot-a-licious! Fight for the users in our Discord: https://discordapp.com/invite/CKYwgxA
Views: 158651 Nixie Pixel
Ubuntu Linux How to set older kernel as default in GRUB
 
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Ubuntu Linux How to set older kernel as default in GRUB a) sudo vim /boot/grub/grub.cfg b) sudo vim /etc/default/grub GRUB_DEFAULT="1 2" #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=-1 GRUB_DISTRIBUTOR=`lsb_release -i -s 2 /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi='!Windows 2012'" GRUB_CMDLINE_LINUX="" c) $sudo update-grub This command update /boot/grub/grub.cfg file and set default="1 2" d) $sudo vim /boot/grub/grub.cfg set default="1 2" e) https://www.gnu.org/software/grub/manual/grub.html#default
Views: 4079 ATOM
Kernel Troubleshooting in Linux!
 
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Welcome to Kernel School! Today's Video: 1 Latest kernel update botched my system. What to do? 2. Find out what kernels are installed 3. Find out what kernel is in use right now 4. Lock a specific kernel in Fedora 5. Remove a kernel lock after it's no longer needed. 6. Add more saved old kernel versions 7. Freeze kernel updates 8. Stay on the kernel of your choice Kernel Stuff --------------------- List kernels installed: grep -P "submenu|^menuentry" /boot/grub2/grub.cfg | cut -d "'" -f2 OR dnf list kernel List current kernel in use: uname -r Install versionlock sudo dnf install python3-dnf-plugins-extras-versionlock Add a Kernel to lock: sudo dnf versionlock add kernel-4.14.8-300.fc27 Remove a kernel lock: sudo dnf versionlock delete kernel-4.9.13-200.fc25 Add more Kernel versions: vi /etc/dnf/dnf.conf change installonly_limit=3 to new limit (i.e. 5) Freeze Kernel updates: vi /etc/dnf/dnf.conf exclude=kernel* Staying on the same kernel grep -P "submenu|^menuentry" /boot/grub2/grub.cfg | cut -d "'" -f2 Set the kernel you want to boot to in Grub: grub2-set-default 'Fedora 4.13.9-300.fc27.x86_64) 27' Remake the grub config file: Legacy BIOS: grub2-mkconfig -o /boot/grub2/grub.cfg UEFI BIOS: grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg Check and see if the Kernel is selected by default: grub2-editenv list Return the selected kernel to the default: grub2-set default 0 Legacy BIOS: grub2-mkconfig -o /boot/grub2/grub.cfg UEFI BIOS: grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg Sources: Updating Grub on Fedora systems: http://fedoraproject.org/wiki/GRUB_2#Updating_GRUB_2_configuration_on_UEFI_systems Grub2: How to boot Fedora to an old kernel? https://www.systutorials.com/qa/270/grub2-how-to-boot-fedora-to-an-old-kernel Setting Default Entry in Grub2 and Grub https://www.systutorials.com/3826/setting-default-entry-in-grub2-and-grub/ A right way to change default kernel? https://ask.fedoraproject.org/en/question/78613/a-right-way-to-change-default-kernel/ Are you interested in helping me grow FastGadgets? Consider visiting my Patreon page and throwing a dollar my way! https://www.patreon.com/FastGadgets For more FastGadgets: http://fastgadgets.info Social Media: Facebook: https://facebook.com/FastGadgetsChannel Twitter: https://twitter.com/FastGadgetsTech YouTube: https://www.youtube.com/FastGadgetstech
Views: 4695 FastGadgets
boot from grub cmd
 
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debian/ubuntu etc
Views: 41926 mars natsuhiboshi
Basic overview of the  kernel config
 
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Once you search for what you are looking for if you press the numbers on the side it will take you too the place in the config for you to set it. After the modules install you have to make sure that the kerenel is in your /boot before regenerating grub. I forgot to mention that -- This community is built on the principle that sharing knowledge is good for humanity. If you believe in this philosophy too, then you have found a welcoming home. Regardless of your level of knowledge in Linux based Distros, we all have something to share. We encourage all users and developers to share their knowledge with us here in the Linux Distro Community. Our linux community is a place where people from all over the world meet and discuss GNU/Linux distros, free software and open source through various social mediums. https://www.linuxdistrocommunity.com/
Views: 856 Irishluck Linux
How to boot your new Linux kernel and select it with grub at boot time
 
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Built a new kernel? Well time now to try it out!
Views: 477 moviestudioland
How to Restore and Customize Ubuntu GRUB Bootloader
 
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GRUB bootloader gets overrided if you install Windows after Ubuntu. I make this video tutorial on how to restore and customize the GRUB loader. Common Problem: You install Windows after you install Ubuntu. That erases the GRUB loader, and instead of being able to switch between Ubuntu and Windows, Windows will boot automatically. Steps: 1) Create a bootable USB Flash Drive of Ubuntu. - Download Ubuntu http://www.ubuntu.com/download/desktop - Download and install Universal USB Installer http://www.pendrivelinux.com/universal-usb-installer-easy-as-1-2-3/ - Create bootable USB flash drive of Ubuntu 2) Restart computer and boot into Ubuntu. 3) Use try Ubuntu and install boot-repair. Commands: sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install boot-repair y boot-repair 4) Recommended repair. 5) Afterwards, if you restart, you can see the GRUB Bootloader again. You can select between Ubuntu and Windows. 6) Use Ubuntu Next parts will be customizing Ubuntu GRUB Bootloader: 8) Open a terminal: sudo fdisk -l 9) Keep track of what sda number is Windows partition on. 10) Customize GRUB bootloader cd /boot/grub sudo gedit grub.cfg 11) Delete any duplicate entries that do not match sda number correctly, and delete any extra entries that you may never use. Twitter: https://twitter.com/microwavesam Blog: http://slothparadise.com Consider supporting our group in making stuff: ►https://www.patreon.com/slothparadise ►Twitter: https://twitter.com/slothparadise
Views: 279447 MicrowaveSam
Learning Linux : Lesson 5 GRUB Bootloader
 
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More videos like this at http://www.theurbanpenguin.com This week we are are 5 weeks into the schedule and we take a look at the GRUB bootloader, or the Grand Unified Bootloader. Using openSUSE the configuration for this is /boot/grub/menu.lst. The bootloader allows us to select the OS and any kernel options. We can add entries into the menu and, should we wish, delete entries. We will also look at securing the GRUB menu with a password, this way you can only select from menu items and not append additional kernel options. The risk of this is highlighted by booting with the init=/bin/bash; this gives us root access with need of a password. Adding the grub password and encrypting it with grub-md5-crypt will prevent this.
Views: 46900 theurbanpenguin
Grub delay loading Ubuntu kernel
 
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It takes 13 seconds for the "Linux" command to go through and another 25 for the initrd.
Views: 11377 Sanctimon
Cosa è GRUB
 
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GRUB è la sigla che sta per "GRand Unified Boot loader" ed è il menu iniziale che ci permette di scegliere quale sistema operativo far partire nel caso in cui ne abbiamo più di uno installato sul nostro PC. la posizione di GRUB nel processo di boot: 1) accensione del PC 2) si attiva il BIOS (Basic Input/Output System) 3) viene letto il MBR (Master Boot Record), ovvero il primo settore del disco, per caricare in memoria ed eseguire il Boot Loader GRUB. Nei sistemi più recenti viene invece letta la partizione UEFI per caricare il Boot Loader 4) si attiva il Boot Loader GRUB. Se esiste più di un sistema operativo installato appare sempre il menu di scelta di grub, altrimenti non appare mai e lo si può richiamare tenendo premuto il tasto SHIFT 5) si attiva il Kernel Linux Gestione del menu GRUB A) gestione da terminale Qui di seguito elenco i file che compongono la configurazione di Grub. Tuttavia sconsiglio di modificare questi file a meno che non si sappia esattamente cosa si stia facendo: [*] /boot/grub/grub.cfg ⇒ file di configurazione principale [*] /etc/default/grub ⇒ file di configurazione del menu [*] /etc/grub.d/*.* ⇒ altri file di configurazione del menu si tratta di comuni file di testo, quindi facilmente modificabili, ma dato il loro scopo è anche facile, non conoscendo bene grub, fare disastri. Per chi è interessato, metto qui un riferimento di una guida per la modifica da terminale delle configurazioni (a vostro rischio) http://ubuntuforums.org/showthread.php?t=1195275 [*] update-grub ⇒ comando per aggiornare la configurazione (eseguito automaticamente dal sistema quando ad esempio si aggiunge un nuovo kernel) B) "Grub Customizer" un'interfaccia grafica per gestire Grub2 questo programma rende meno ostica la modifica di alcune opzioni di grub per coloro che vogliono qualche personalizzazione diversa dallo standard. Anche in questo caso però sconsiglio di modificare le opzioni tecniche di avvio delle diverse sessioni a meno che non si sappia esattamente cosa si stia facendo. Quello che si può fare senza grossi pericoli è ad esempio modificare il tema "grafico" di grub con la scheda "Impostazioni aspetto". Temi già pronti si possono trovare in rete, così come delle guide per crearne di nuovi. Installazione di Grub Customizer [*] https://launchpad.net/grub-customizer [*] sudo add-apt-repository ppa:danielrichter2007/grub-customizer [*] sudo apt-get update [*] sudo apt-get install grub-customizer Documentazione per approfondire il tema info -f grub -n 'Simple configuration' (documentazione presente nel sistema da terminale) http://www.gnu.org/software/grub/ http://it.wikipedia.org/wiki/GNU_GRUB http://wiki.ubuntu-it.org/AmministrazioneSistema/Grub http://members.iinet.net/~herman546/p20/GRUB2%20CLI%20Mode%20Commands.html http://www.gnu.org/software/grub/manual/grub.html https://help.ubuntu.com/community/Grub2
Views: 2064 Nicola Jelmorini
Kernel Upgrade - Gentoo (December 2018)
 
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This is a video detailing a kernel upgrade, from copying and upgrading the configuration file to compiling the kernel and configuring grub to recognize the upgraded kernel in the boot sector. Here is a list of instructive commands that I follow during this process: cp /usr/src/linux/.config ~/kernel-config-`uname -r` sudo eselect kernel list Available kernel symlink targets: [1] linux-4.14.83-gentoo * [2] linux-4.19.0-gentoo sudo eselect kernel set 2 sudo eselect kernel list Available kernel symlink targets: [1] linux-4.14.83-gentoo [2] linux-4.19.0-gentoo * cd /usr/src/linux sudo cp /boot/config-4.14.83-gentoo /usr/src/linux/.config sudo make olddefconfig ##This sets all new options to default recommended status sudo make silentoldconfig ##This option goes through all new changes and asks the user for input ## Example: Anticipatory I/O scheduler (IOSCHED_AS) [Y/n/m/?] (NEW) sudo make modules_prepare sudo emerge --ask @module-rebuild sudo make && sudo make modules_install && sudo make install sudo grub-mkconfig -o /boot/grub/grub.cfg
Views: 214 Jason Minns
Change the default grub boot loader OS/Kernel [HowTo]
 
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sudo nano /etc/default/grub sudo update-grub
Views: 2002 Simon Schubert
How do I update GRUB to load a previous kernel on an EC2 instance that fails to reboot?
 
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Find more details in the AWS Knowledge Center: https://amzn.to/2Gaftez Dean, an AWS Cloud Support Engineer, shows you how to update GRUB to load a previous kernel on an EC2 instance that fails to reboot.
Views: 438 Amazon Web Services
GRUB Bootloader Fix: How to Boot in to Windows After Installing/Deleting Ubuntu Linux
 
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Get The Complete Linux Administration Course Bundle! https://josephdelgadillo.com/product/linux-course-bundle/ Enroll in our FREE Linux course! https://uthena.com/courses/linux?ref=744aff After installing Ubuntu Linux, type the following commands in to the terminal to updated GRUB and to see the option to boot in to Windows: sudo update-grub After deleting the Linux partitions from your hard drive, do a live boot in to Linux (Try Ubuntu without installing) and type the following command in to the terminal to boot back in to Windows: sudo apt-get install lilo Hit enter then: sudo lilo -M /dev/sda mbr Web - https://josephdelgadillo.com Subscribe - https://bit.ly/SubscribeJTD Facebook - https://www.facebook.com/delgadillojt Discord - https://discord.gg/EbcQFrg Instagram - https://www.instagram.com/jo3potato
Views: 159757 Joseph Delgadillo
How to Change default boot order, and waiting time on Linux (Multi-boot)
 
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Editing GRUB using nano and Linux therminal to change boot menu settings: This video is describing how to change the boot order and booting wait timeout. If you don't like to use sudo at the begining of each command, you can type su and press Enter. It will ask for your password, and it would keep it. Ok, let's get started. Note: First, write or remember the order of your boot menu items, and keep in mind that line numbers start from 0, and Not 1. Open your terminal window by pressing Ctrl+Alt+T 1- Type:     sudo nano /etc/default/grub (This will open grub, which is the place for all these boot configs) 2- Find     GRUB_DEFAULT= X 3- Change the Value of X to the line number that you like to be your default boot. 4- To change the default waiting time, Find and change the value of Y in GRUB_TIMEOUT= Y 5- Press Ctrl+O to Save 6- Press Ctrl+X to Exit 7- Type:     sudo update-grub to update your settings That's it. If you have any question, please feel free to ask it in YouTube comments On my website: http://subtledesign.net/index.php?id=learning-lounge&post=how-to-change-default-boot-order-and-waiting-time-on-linux-multi-boot
Views: 35896 Vargha Hokmran
Edit /etc/default/grub to set GRUB_CMDLINE_LINUX="acpi=off"/"pci=noacpi" options
 
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http://android-er.blogspot.com/2014/07/edit-etcdefaultgrub-to-set.html
Views: 11032 Andr.oid Eric
solution for windows 10 missing from grub menu
 
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In this video i will show you how to fix windows entry in linux grub to get window menu in startup. I am using windows 10 and centos 7.1 follow these commands:- cd /etc/grub.d/ gedit 40_custom # add following lines in 40_custom file: menuentry "Windows 7" { set root='(hd0,1)' chainloader +1 } # after edit save file and run following command : grub2-mkconfig -o /boot/grub2/grub.cfg Copyright © 2015 by Rajiv Sharma (www.technicaldirector.in) All Rights Reserved. VFX Pipeline YouTube Channel and its content is copyright of Rajiv Sharma. Any redistribution or reproduction of part or all of the contents in any form is prohibited.
Views: 157155 VFX Pipeline
Replace GRUB with Windows 10 Bootloader on Dualboot
 
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EasyBCD: http://neosmart.net/EasyBCD/ Song: Raw - tiasu Music provided by Ninety9Lives Video: https://youtu.be/KoAvqtw3v2k Download: http://99l.tv/RawYU
How to recover grub /redhat/centos
 
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How to recover grub centos6
Views: 7110 Sachin Linux
VSIDO grub boot kernel panic
 
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Kernel panic on booting the intel video driver, macbook 2,1 Mid 2007
Views: 438 N. Tesla
Customize Ubuntu 18.04 : GRUB Theme | Theme Start Menu | Make start screen look good
 
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Customize your PC GRUB . GRUB bootloader is the software that loads the Linux kernel. It is the first software that starts at a system boot.This program is responsible for detecting and loading any OS on your personal computer. --------------------------------------------------------------- If your computer is dual booted then by default PC boots to Linux. To manipulate it (if I want it to boot into windows by default ( I have ubuntu + windows installed ) ) you have to change GRUB file a little in my case if I want to boot into windows by default then steps are: execute sudo gedit /etc/default/grub then change GRUB_DEFAULT=0 value to you windows partition ( in my case it is 4 ) so I would change it to GRUB_DEFAULT=4 then save the file and update GRUB using sudo update-grub and reboot to see change ----------------------------------------------------- Like, Dislike, Share and Subscribe!
Views: 13372 Shivam Ashtikar
Manual boot debug on
 
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Notice the messages during delay.
Views: 10701 Sanctimon
How to configure GRUB Configuration file in Red Hat Linux 6
 
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How to configure GRUB Configuration file in Red Hat Linux Enterprise 6 RHEL 6 LINK OF .xpm images : https://drive.google.com/open?id=0BwgqEhmOLbxTM0RtVk9KZGNwQVE GRUB (Grand Unified Bootloader) is a boot loader package from the GNU Project. GRUB is the reference implementation of the Free Software Foundation's Multiboot Specification, which provides a user the choice to boot one of multiple operating systems installed on a computer or select a specific kernel configuration available on a particular operating system's partitions. Track: Electro-Light - Symbolism [NCS Release]] Music provided by NoCopyrightSounds. Watch: https://www.youtube.com/watch?v=__CRW... Free Download / Stream: http://ncs.io/symbolism
Views: 5291 Seven T1
Boot Directory Explained (also Linux boot process)
 
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/boot is an important folder in Linux. /boot folder contains all the boot related info files and folders such as grub.conf, vmlinuz image aka kernel etc. /boot/initrd-2.6.18-194.17.1 img file: Initrd in other words called as Initializing RAM Disk which loads temporary file system in to RAM at the time of booting process before actual file system mounting. This file is loaded by your kernel image file at the time of booting. This initrd image knows only one configuration file /etc/inittab file. The inittab file contains what are run levels, what init has to do in each run level and what is the default runlevel etc. /boot/vmlinuz-2.6.18-194.17.1 file: vmlinuz is a compressed Linux Kernel image which is used at the time of booting Linux operating system. Vmlinuz stands for virtual memory Linux kernel zipped. /boot/System.map-2.6.18-194.17.1.el file: This is a map file used by kernel. This file contains memory location mapped to the kernel variables or functions. Again this file is used by vmlinuz kernel image at the time of booting to set symbol names. /boot/grub/grub.conf : This file is used for boot loader grub to load grub related configuration so that this is used at the time of booting.
Views: 4122 Tech Tuxedo
How to Restore Windows boot loader After Deleting Linux and Grub loader
 
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Hello Friends, This video is about How to Delete Linux From Dual boot with Windows 7/8 and Restore Windows boot loader after Grub has been deleted and this will work for any linux OS whether its Ubuntu,Fedora etc or any other Linux OS.... Thanks for watching the video Like,rate ,comment and subscribe..
Views: 527704 TechnoFusion
How to remove kernel from Grub in Ubuntu 12.04, 12.10, 13.04, 13.10
 
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So is your Grub menu getting cluttered from updating? No worries just insert these commands and follow along with the instructions in the video. Subscribe now for more UFH clips: http://goo.gl/djgPjr WARNING!!! KNOW WHAT YOU ARE UNINSTALLING!!! UNINSTALLING KERNELS AT RANDOM WILL CAUSE SYSTEM INSTABILITY OR CORRUPT YOUR INSTALLATION!!! KNOW WHAT YOU ARE DOING! If you are unsure what kernel works best for you check advanced in the grub boot menu options and boot into a kernel to test it. This tutorial will help you uninstall old and newer kernels that may be giving you trouble. Like and share if it helps! Like Ubuntu For Humans on Facebook: http://goo.gl/RVmM9a Follow Ubuntu For Humans on Blogger: http://goo.gl/rbXy7R Donate to Ubuntu For Humans at: http://goo.gl/pt92YP Terminal commands: List all kernels eligible for uninstall: dpkg --get-selections | grep linux-image PURGE (REMOVAL): sudo apt-get purge (copy and paste the image you wish to remove here as seen in the video) ***This works in Linux-Mint as well*** Ubuntu For Humans is a FREE service dedicated to making Ubuntu easier to use for humans. John 3:16 Ubuntu license policy: http://www.ubuntu.com/about/about-ubuntu/licensing How to remove kernel from Grub in Ubuntu 12.04, 12.10, 13.04, 13.10 https://www.youtube.com/watch?v=r-mA90NOQ40 Ubuntu For Humans http://www.youtube.com/user/UbuntuForHumans
Views: 1162 Ubuntu For Humans
How To Boot With Old Kernel In Rhel 7
 
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How To Boot With Old Kernel Version In RHEL7 and Centos 7 step by step
Views: 1933 Technical Techs
DIY pt1: Building fast and small Linux kernel
 
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https://www.kernel.org/ This kernel will be very fast, it will make your system r4espond 10 - 15% faster. U can do even better latency for desktop usage if U patch your kernel with ck-patch (CPU scheduler) Security will be defeated here, because it doesnt go with performance. U dont need to care if you dont have server. I will make other video for building very secured Linux kernel for servers and firewalls. Be very carefull with your hardware here, otherwise Ure kernel will not boot, pay attention wit CPU configuration, GPU configuration as well as chipset configuration... As I mentioned in video, this will work on every linux distro, just copy kernel in boot, install modules and select new kernel in grub.. For final small kernel image, it is very important to start from scratch with "make allnoconfig" otherwise, there will be needless feautures which will be hard to get rid off.. If somethings go wrong, just press "e" in grub and select your old kernel and uncheck old initrd image... which you will need to check with # because Our builded kernel doesnt requie initrd (i didnt cover this in video because i dont have and use initrd).... If everything go well, U can delete old kernel and initrd from boot and delete checked initrd image in grub.cfg.. be sure to check every of those selected kernel feautures and study them (some ary very complicated to understand but it will be worth), I will not explain them in video... Keep in mind that this feautures will improve performance on my current hardware or any intel in general.... If U use amd, it may be different but pretty similar. Also, pay attention to EFI support under "proc type and feautures" if U use UEFI bios mode. Also notice that i disablet etherent because im only using wireless This IS NOT How to, because it will not work if you just copy my config, it is more DIY, to help you build fast kernel once you know how to build one... This kernel wil be respondable with low latency level but it may be slow on high cpu loads, for example when u compiling with parallel options. U can change this if u change tickless system in general setup and scheduling system in Proc type... but this will defeat real-time latency... So, it all depends on you and your needs. In both cases, it will be much faster than generic kernel.
Views: 106 Unix like
Booting a  Linux system
 
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More videos like this online at http://www.theurbanpenguin.com Getting ready for any computer certification you are going to have to know how the system boots, so ehere we look at booting Linux on an x86 system. Once the BIOS has loaded the MBR is located on the bootable disk. this load the partition table and the boot loaded. the boot laod, in our case GRUB, is used to select a kernel. the kernel load and starts the init daemon. The int deamn is responsible for controlling all other processes, simple
Views: 7156 theurbanpenguin
[How to] Remove Linux boot logo
 
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This tutorial shows you how to remove that filthy boot logo of your distro and have the kernel draw all the messages to the screen and have a more technical boot very well detailed, just how I like it :D Commands in the tut: gksu gedit /etc/default/grub sudo update-grub2 sudo apt remove plymouth-theme-ubuntu-text Music by: kosakgroove (me , a humble servant) Stay tuned for more tutorials! :D Like andsubscribe if you enjoyed
Fix Kernel Panic Not Syncing After Upgrade
 
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How to Fix Kernel Panic Not Syncing After Upgrade on Ubuntu Original Video in Hausa: https://youtu.be/tQbFLRTLuFo
How to fix grub rescue in CentOS 7 / Redhat 7 / Fedora (100 % working)
 
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How to Create Yum Server Using FTP Server in Redhat 7 / CentOS 7 / Fedora : - https://www.youtube.com/watch?v=Sa522aNbmA4&index=2&list=PLW6Qj-RXhvem0XOIHI4_alsBKahTqSuMq How to Create Yum Server Using Http Server (Apache Server) in Redhat 7 / CentOS 7 / Fedora : - https://www.youtube.com/watch?v=dRoZfeVEqpo --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- YUM SERVER Configuration using three methods : - https://www.youtube.com/playlist?list=PLW6Qj-RXhvekhnDtgiLFG_29wqL6OHJxr --------------------------------------------------------------------------------------------------------------------------------------------- Redhat 7 / CentOS 7 / Fedora Server Playlist : - https://www.youtube.com/playlist?list=PLW6Qj-RXhvem0XOIHI4_alsBKahTqSuMq ---------------------------------------------------------------------------------------------------------------------------------------------- LIKE | SHARE | SUBSCRIBE Like us on Facebook : - https://www.facebook.com/AndroidandTechSolutions/?fref=ts Website Link :- http://letslearntech.com ---------------------------------------------------------------------------------------------------------------------------------------------- search tags:- How to fix grub rescue in linux How to fix grub rescue in centos How to fix grub rescue in centos 7 How to fix grub rescue in redhat How to fix grub rescue in redhat 7 How to fix grub rescue in fedora How to fix grub in linux How to fix grub in centos How to fix grub in centos 7 How to fix grub in redhat How to fix grub in redhat 7 How to fix grub in fedora grub rescue grub rescue problem grub rescue problem how to fix
Linux: Set a GRUB 1 Password
 
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The steps in this video work on GRUB1. These will not work in the newer GRUB versions. You will set a md5 encrypted password to protect Linux's boot and kernel options. Typically you will use a better password than the one presented in the movie!
Views: 1093 Lee Cottrell
Starting Ubuntu with Custom Kernel & Grub from USB Completed)
 
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CS250 Homework (Operating Systems) Full Instruction how to do that after 2000 Views
Views: 646 frankovice
Grub Rescue - Guide for beginners
 
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I have messed up my Ubuntu grub bootloader by trying to resize my root partition using gparted live cd, anyway i manage to resize my root partition but when i rebooted i was prompted to grub rescue screen so this beginners guide will help you to load your os back if you got in to similar situation
Views: 259531 TechZone++
Why and How to install the LTS kernel in Arch Linux
 
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Installing the LTS kernel in Arch Linux is recommended if you want more stability. But what is the kernel? What is the difference between the default and the LTS kernels? Which one should you use? You can find out in this video. I first recommended the LTS kernel in the video 10 Things to do first in Arch Linux https://youtu.be/jW4GFGOIUjc?list=PLSmXPSsgkZLt66s-M_gfQtMakc8iYJY6M In this video, I provide more details why I prefer the LTS kernel. To install the LTS kernel in Arch Linux, do the following steps. First, check your current kernel version: uname -r If it is not LTS, install the LTS kernel: sudo pacman -S linux-lts Update your bootloader, if you use GRUB run this command: sudo grub-mkconfig -o /boot/grub/grub.cfg Reboot your system. After the reboot, you should see the GRUB menu, if you don’t see it, press SHIFT or ESC key during the boot time to enter the menu. Then go to the Advanced options, and select to boot with the LTS kernel. After you logged in your system, check the kernel version and make sure it is an LTS version: uname -r Now, you can remove the latest kernel and keep only the LTS kernel: sudo pacman -R linux If you keep both kernels, Arch Linux will use the latest kernel by default after you reboot your system. I prefer the LTS kernel. What is your choice? ################################################ Support on Patreon: https://www.patreon.com/averagelinuxuser Donate through PayPal: https://www.paypal.me/Kryvokhyzha ################################################ More cool Linux stuff at other social media: Google+ - Best Linux Stuff: https://plus.google.com/+AverageLinuxUser Facebook - Top Linux Tips: https://www.facebook.com/AverageLinuxUser Twitter - Daily Linux News: http://twitter.com/AVGLinuxUser Website: http://averagelinuxuser.com/
Views: 12747 Average Linux User
How to fix Linux GRUB in Dual Boot? [ Live Boot Fixing ]
 
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this video shows how to fix grub if you are dual booting. commands : (use according to your HDD) sudo mount /dev/sda6 /mnt sudo mount --bind /dev /mnt/dev sudo mount --bind /dev/pts /mnt/dev/pts sudo mount --bind /proc /mnt/proc sudo mount --bind /sys /mnt/sys sudo chroot /mnt grub-install /dev/sda grub-install --recheck /dev/sda update-grub Thanks For Watching: Commend If any Problem. grub linux command line, grub linux mint, arch linux grub, linux grub tutorial, grub recovery in linux, kali linux grub, arch linux grub install, grub rescue kali linux, reparar grub linux, recuperar grub linux, grub linux
Views: 39576 newbietech
Sysctl command (Linux Tutorial)
 
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"sysctl" is a tool for examining and changing kernel parameters at runtime. sysctl is implemented in procfs, the virtual process file system at /proc/. Commands used - sysctl -a (to view all loaded parameters) sysctl -p (to load all parameters from /etc/sysctl.conf) /proc/sys (to temporarily change kernel parameters)
Views: 3231 Tech Tuxedo
Fix Remix OS shows Grub Error while booting -Minimal BASH-like line editing is supported
 
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This Video will explain how to Fix Remix OS Grub Error while booting-Minimal Bash-like... Actually i tried a lot and finally it worked for me.. If it is not working or showing some other errors, please comment. If anyone found the solution, please comment for benefit of the Viewers... ---------------------------------------------------------------------------------------------- Web/Download URL EasyBCD Software for Windows http://www.techspot.com/downloads/3112-easybcd.html ---------------------------------------------------------------------------------------------- To install & Boot Remix OS in PC https://www.youtube.com/watch?v=mQrrY5aq8yw To install & Boot Remix OS in USB https://www.youtube.com/watch?v=RNGKxpffBr0 To install Google Playstore/Playservices in Remix OS https://www.youtube.com/watch?v=WBxopuH8cNQ To install/Uninstall Android Apps in Remix OS https://www.youtube.com/watch?v=o1lXiiJO8Lc ---------------------------------------------------------------------------------------------- Subscribe this Channel http://goo.gl/98RZz ---------------------------------------------------------------------------------------------- Request Video you want http://goo.gl/sA5bRk ---------------------------------------------------------------------------------------------- My Official Website http://www.techgeekshan.in/ ---------------------------------------------------------------------------------------------- Follow & Subscribe Me http://facebook.com/techgeekshan http://twitter.com/techgeekshan https://www.reddit.com/r/TechGeekShan/ http://instagram.com/techgeekshan/ http://forum.xda-developers.com/member.php?u=5218718 http://droidx86.gdk.mx/profile/?u=339
Views: 211011 TechGeekShan
GRUB CONFIGURATION
 
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Hi Guys, Today I m gonna show you how to configure G.R.U.B (Boot Loader) GRUB Configuration file i.e grub.conf located in #cd /boot/grub use vim to edit the file #vim grub.conf i)on line no.10 default=0 defines how many o.s. to load with. ii) on line no.11 timeout =10 sets the counter, that the grub image will hold on the screen while booting iii) on line no.12 splashimage = (hd0,0)/splash.xpm.gz read below splashimage option consists of 2 parameter and image file location hd0:- means the 1st hard disk of the system 0 :- means the partition of the first hard disk. (for e.g. : in a system has 2 hard disk and in 1st hard-disk it got 3 drives c: d: e: and in 2nd hard-disk it got 2 drives f: g: then hard-disk1 called as hd0 and then hard-disk2 called as hd1. Partitions are numbered as c: - 0 d: - 1 e: - 2 f: - 3 g: - 4 } but in our condition we have only one hard-disk and single partition. we don't have to be worried about all these iV) splash.xpm.gz : is the image file which u see when your system starts, (.xpm.gz) is the format of the image which is used for this particular purpose. we can have our own image v) on line no. 14 title is the keyword followed by the title name you can have whatever title you want title mygrub restart the system to check Thanks for Watching
Views: 1981 Ajay Yadav
A Linux System Boots
 
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Everything from turning on the power to the graphical login: [1] Power on, POST or power-on self test [2] BIOS settings options, BIOS hardware detection [3] GRUB kernel choices, GRUB loads Linux kernel [4] Boot scripts run, graphical display manager starts
Views: 198 Bob Cromwell
[ENG] Broken laptop's monitor: Disabling it and boot WITHOUT a visible GRUB menu
 
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Blog post: http://antoniodanieleblog.blogspot.com/2016/09/dead-laptop-monitor-multiboot-possibility.html Disclaimer: http://antoniodanieleblog.blogspot.it/p/the-unknown-antoniodanieles-blog.html [ACTUAL DESCRIPTION] In this new video I show how to solve an intricated problem: What if your laptop's monitor is broken and you can't see the BIOS settings and the GRUB menu? In this video you're going to see: -How to disable the laptop monitor and force the use of an external one by using a kernel parameter. -How to use the grub-reboot command in an "user-friendly" way, by using a script to automatize everything. [ERRATA] 1) 04:17 From the video I thought it was obvious, but I'll sign it as an ERRATA anyway, the kernel option follows the format "video=INTERFACE:OPERATION", where INTERFACE is the name of the interface in the output of xrandr, and OPERATION is "d" for "disable" and "e" for "enable". 2) 07:29 Here I intend to say that you have to first boot to other systems WITHOUT the parameters, because you won't know them, and, after checking the output of xrandr, take note of it, return to the main distro and add the needed options. 3) 14:20 The script contains a fatal inattention, I forgot to add the command "exit" to the first if. The actual piece of code should be like this: if [ $# -ne 1 ] then echo "Fedora or Windows needed" exit fi 4) 17:00 This is a more general speech. If you still see the laptop monitor activated at the login manager, perform the login. While in Debian, the output of xrandr signals that the LVDS inteface is disconnected (therefore completely unusable), in Fedora, after the login, the screen is turned off but the interface is still connected.
Linux Bootloaders & Kernel Configuration
 
31:30
Melanie Lewis talks about Linux Bootloaders and Kernel configuration for ARM and other embedded platforms
Views: 1694 101blog
AntiX Core - Custom Install Part II - Install a different Kernel
 
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Antix Core by default comes with a free/libre/gnu kernel. Depending on your hardware, you may need a nonfree/non-gnu kernel. Luckily antix has you covered, but you'll need to install the kernel from the repos. We will show you how! Here are some notes to help you out. updating the kernel in antix (core install, but instructions work for base and full as well) if you need non-free firmware, you are going to need a non-free kernel. By default, antix-core comes with a gnu-libre-free kernel that does not include many firmware nor will it necessarily work with non-free firmware you install yourself. so to update your kernel, as root, apt-get update apt-cache search kernel antix (this will show you all the kernels available!) be careful to select the correct one. I'm using linux-image-3.11.5-antix.1-486-smp and linux-headers-3.11.5-antix.1-486-smp these are 32 bit kernels. 64 bit are available if you are using the 64bit version of antix when you have the kernels, as root type "update-grub" and your grub boot menu will automatically update with new entries for your new kernel. Your ORIGINAL KERNEL WILL STILL BE THE DEFAULT. Test out your kernel by selecting it from the boot menu. If all is well, then feel free to edit /boot/grub/menu.lst to move your old kernel to an option line and the new kernel to the top. Actually, if you just comment out the top antix menu entry, then the new default will be the latest kernel. Thanks for watching, and have Fun! d.o. antix.mepis.org antix.freeforums.org
Views: 2300 runwiththedolphin

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