GRUB2 Modules
This post describes GRUB2 modules and shows you how to add functionality to existing modules or write you own custom module.
View ArticleBoot Fedora 14 Using UEFI and GRUB2
This post demonstrates how to build and install GRUB 1.99-beta0 on a UEFI platform running Fedora 14. It also discusses how to use the grub-mkfont utility to create a suitable font file for graphics...
View ArticleBuilding a Bootable GRUB Legacy Image for QEMU
This post demonstrates how to build a simple bootable image containing GRUB Legacy and run it in QEMU in either graphical or non-graphical mode.
View ArticleBoot Fedora 15 Using UEFI and GRUB2
With the release of Fedora 15, I decided to have another look at the state of UEFI booting Fedora using GRUB2. In this post I show you how to build and install an UEFI version of GRUB2 which can be...
View ArticleFedora 16 MBR GRUB Legacy to GPT GRUB2
This post discusses how to upgrade your Fedora 16 system from a MBR partitioned boot disk booted using GRUB Legacy to a GPT partitioned disk booted using GRUB2.
View ArticleFedora 16 GPT, GRUB2 and BIOS Boot Partition
This post discusses the requirement for a GPT BIOS Boot Partition by GRUB2 in order to boot a BIOS-based system.
View ArticleUEFI Memory V E820 Memory
In this post I discuss the differences between how UEFI hands off memory to the Linux Kernel and how old-fashioned BIOSes handled off memory via E820.
View ArticleUsing FedUp to Upgrade an EFI Boot Stub System to Fedora 19
FedUp (FEDora UPgrader) is the new tool for upgrading existing Fedora installs in Fedora 18 and above releases. It replaces all the previously recommended upgrade methods, i.e. PreUpgrade, DVD, USB,...
View ArticleAccessing Cisco Secure ACS 5.X Internals
Cisco Secure Access Control System is based on CentOS. This post will show you how to access the Bash shell as root, and explores the underlying filesystem layout and utilities which make up this...
View ArticleFastest Way to Gain Root Access in RHCSA7 Exam
This blog post describes the fastest way that I know to change the root password on a RHEL7 platform if you do not know or have forgotten the root password. A typical use case is the RHCSA 7 exam.
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