Configuring the boot menu in ubuntu
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This document provides instructions for configuring the boot menu in Ubuntu to change the default operating system that boots. It explains that the Grub boot menu controls the boot order and lists the current boot entries. It describes editing the /etc/default/grub file to change the GRUB_DEFAULT variable to the number of the desired default entry. Running sudo update-grub applies the changes, allowing selection of Windows or Ubuntu as the system to boot by default.
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Order of boot process in Linux
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1. BIOS performs checks and loads the boot loader from the hard drive.
2. The boot loader (MBR) loads and executes the next stage boot loader (GRUB).
3. GRUB loads and executes the Linux kernel and initrd image.
4. The kernel mounts the root file system and executes the init program.
5. Init determines the run level and loads programs to start services for that run level.
6. File system corruption can occur if the system crashes before file system buffers in memory are synchronized to disk.
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Redhat OS installation
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2. Key steps are booting from the installation media, choosing installation type (new or upgrade), partitioning disks automatically or manually, setting the root password, selecting packages to install, and rebooting upon completion.
3. Options during installation include choosing automatic or manual partitioning, selecting GRUB or LILO as the boot loader, and setting a boot loader password for added security.
Grub2 and troubleshooting_ol7_boot_problems
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101 1.2 boot the system
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- The boot sequence from BIOS performing self-test to loading the master boot record from the boot drive, then the boot loader (LILO or GRUB), and finally the kernel.
- How LILO and GRUB allow selecting operating systems and passing options to the kernel like the root filesystem.
- Common boot loader characteristics and how GRUB uses device names differently than Linux.
- How to recover from a failed boot by booting from removable media and reinstalling LILO or GRUB in the master boot record.
- Common kernel parameters and where to
Dual Booting Win7 and ubuntu
Dual Booting Win7 and ubuntuRavi Malik This document provides instructions for dual booting Windows 7 and Ubuntu Linux on a single computer. It involves 9 steps: 1) getting prepared by ensuring sufficient storage and backups, 2) selecting Ubuntu as the Linux distribution, 3) preparing an installation USB or disc, 4) backing up Windows, 5) using Disk Management to partition the hard drive and make space for Ubuntu, 6) booting from the installation media, 7) installing Ubuntu alongside Windows, 8) changing the boot device back to the hard drive, and 9) rebooting and configuring Ubuntu. Dual booting allows experimenting with Linux without replacing Windows entirely.
Public software ubuntu (shreenivas)
Public software ubuntu (shreenivas)KarnatakaOER - Ubuntu is a popular open-source operating system that contains a variety of pre-installed software like LibreOffice, Firefox, and Thunderbird. Additional software can be accessed through the Ubuntu Software Center.
- By default, Ubuntu aims to be secure "out-of-the-box" by running user programs with low privileges, using sudo for admin tasks, and closing unnecessary network ports. It provides security updates through its lifetime.
- Ubuntu is released every six months and receives nine months of support, while long-term support releases are issued every two years and supported for five years. It is based on packages from Debian but may need recompiling to run on Ubuntu.
Installation of DSpace, Koha and other software using Liblivecd
Installation of DSpace, Koha and other software using LiblivecdRupesh Kumar This document provides step-by-step instructions for installing Lubuntu Linux, Koha, DSpace and other software using the LibLiveCD bootable disc. It describes starting the computer from the disc, navigating the installation wizard, selecting installation options such as partitioning disks, setting up user accounts, and completing the installation process. Upon restarting, the document explains how to log in and access pre-installed applications like DSpace, Koha, Joomla and Squirrelmail from the desktop environment.
Installing Linux: Partitioning and File System Considerations
Installing Linux: Partitioning and File System ConsiderationsKevin OBrien This document discusses considerations for installing Linux, including whether to do a single Linux install, dual boot with Windows, or multiple Linux installs. It provides examples of recommended partition sizes and file system types for different scenarios, such as allocating 50GB to / and the rest to /home for a single Linux install, or using FAT32 for a partition to share data between Linux and Windows on a dual boot system. The document emphasizes backing up data and having separate partitions for /var or /home if installing on a server.
Readme
Readmebwryno This document provides information about grubinst and grubinst_gui, utilities that can install GRUB4DOS boot code to the MBR or partition boot sector of a hard disk or image file. Grubinst is a console program that mimics bootlace.com from GRUB4DOS, while grubinst_gui provides a graphical user interface. The utilities only install the MBR and do not configure other aspects of booting from GRUB4DOS. Useful links are provided for more information on GRUB4DOS and the utilities.
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