The UEFI-based booting sequence – Exploring the Various Boot Options and Kernels in Oracle Linux

The UEFI-based booting sequence The following sequence order is used by UEFI-based booting hardware: The legacy BIOS sequenceLegacy BIOS booting hardware uses the following sequence order:

Playing with UEFI 2 – Exploring the Various Boot Options and Kernels in Oracle Linux

How to do it… Let’s run the df -h command to view the partitions in the system. Please notice that /boot/efi is mounted on the /dev/sda1 partition in this example: Figure 3.10 – df -h command If you run the ls -l /boot/efi/EFI/redhat command, this directory contains a first-stage bootloader called shimx64.efi, a GRUB 2 […]

Updating the Machine Owner Key database – Exploring the Various Boot Options and Kernels in Oracle Linux

Updating the Machine Owner Key database Machine Owner Key (MOK) is a security feature designed to protect the boot process of a computer system from unauthorized modifications or attacks. It is typically used in systems that support UEFI and Secure Boot, which require all bootloaders and kernel modules to be signed by trusted entities. The […]

TrenchBoot – improving boot security and integrity – Exploring the Various Boot Options and Kernels in Oracle Linux

TrenchBoot – improving boot security and integrity TrenchBoot is a GitHub cross-community and cross-platform framework integration that grew from an idea by Apertus Solutions that originated in 2014 to deal with the limitations of using tboot to launch Xen for the OpenXT project and other contributors, such as Oracle (Intel), 3mdep (AMD), and Citrix (https://github.com/TrenchBoot). […]

What you need to know about local filesystems – Creating and Managing Single-Instance Filesystems

What you need to know about local filesystems This recipe will discuss the differences between local and remote filesystems, as well as the core differences between Btrfs and ZFS. The backbone of an operating system (OS) is the local filesystem. It enables efficient storage and management of files and directories on a computer or server […]

What you need to know about local filesystems 2 – Creating and Managing Single-Instance Filesystems

How to do it… Oracle Linux by default uses the XFS filesystem, but when doing the installation, you can use Btrfs as the root filesystem. If you want to use XFS as the boot filesystem, install it as you normally would. If you want to use Btrfs, then you should continue. Note Your boot filesystem […]

All Rights Reserved 2022-2024