Design of a Dynamic Boot Loader for Loading an Operating System
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Linux on a Stick Everyone Knows You Can Boot Linux from a Live CD, but Have You Thought About Putting Linux on a Compact and Highly Portable USB
KNOW HOW Memory Stick Linux Booting Linux from a USB Memory Stick Linux on a Stick Everyone knows you can boot Linux from a live CD, but have you thought about putting Linux on a compact and highly portable USB memory stick? BY FABRIZIO CIACCHI bootable “live” CD like Knoppix much more common. Part of our pur- ent from DSL, but it includes more [1] or Kanotix [2] gives the user a pose is to create an inexpensive system, software (about 14 MB plus), and it Afully portable operating environ- so I will base this discussion on the stan- has already been refined and tested for ment. You can carry your system with dard and very common 128 MB size. USB devices. you and boot it from anywhere. However, the procedure I describe in this • Flonix [8]: Flonix is also based on Your tools, your files, and your work- article can also be used to put a larger DSL, but it uses some different pro- space will follow you wherever you go – Knoppix-based distribution on a larger grams (for instance, IceWM instead even to another PC with a different USB memory stick. of Fluxbox). The Flonix project also operating system. Live CDs are also used Assuming you want room to work and introduced a useful web install by system administrators for trouble- store documents, it is a good idea to only process. Ultimately, Flonix was so shooting computers that won’t boot use half of the available space (64 MB) successful that it become a commer- normally. for the Linux system and related tools. -
Oracle® Linux 7 Release Notes for Oracle Linux 7.2
Oracle® Linux 7 Release Notes for Oracle Linux 7.2 E67200-22 March 2021 Oracle Legal Notices Copyright © 2015, 2021 Oracle and/or its affiliates. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs) and Oracle computer documentation or other Oracle data delivered to or accessed by U.S. Government end users are "commercial computer software" or "commercial computer software documentation" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, the use, reproduction, duplication, release, display, disclosure, modification, preparation of derivative works, and/or adaptation of i) Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs), ii) Oracle computer documentation and/or iii) other Oracle data, is subject to the rights and limitations specified in the license contained in the applicable contract. -
Chapter 3. Booting Operating Systems
Chapter 3. Booting Operating Systems Abstract: Chapter 3 provides a complete coverage on operating systems booting. It explains the booting principle and the booting sequence of various kinds of bootable devices. These include booting from floppy disk, hard disk, CDROM and USB drives. Instead of writing a customized booter to boot up only MTX, it shows how to develop booter programs to boot up real operating systems, such as Linux, from a variety of bootable devices. In particular, it shows how to boot up generic Linux bzImage kernels with initial ramdisk support. It is shown that the hard disk and CDROM booters developed in this book are comparable to GRUB and isolinux in performance. In addition, it demonstrates the booter programs by sample systems. 3.1. Booting Booting, which is short for bootstrap, refers to the process of loading an operating system image into computer memory and starting up the operating system. As such, it is the first step to run an operating system. Despite its importance and widespread interests among computer users, the subject of booting is rarely discussed in operating system books. Information on booting are usually scattered and, in most cases, incomplete. A systematic treatment of the booting process has been lacking. The purpose of this chapter is to try to fill this void. In this chapter, we shall discuss the booting principle and show how to write booter programs to boot up real operating systems. As one might expect, the booting process is highly machine dependent. To be more specific, we shall only consider the booting process of Intel x86 based PCs. -
Developer Guide(KAE Encryption & Decryption)
Kunpeng Acceleration Engine Developer Guide(KAE Encryption & Decryption) Issue 15 Date 2021-08-06 HUAWEI TECHNOLOGIES CO., LTD. Copyright © Huawei Technologies Co., Ltd. 2021. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied. Issue 15 (2021-08-06) Copyright © Huawei Technologies Co., Ltd. i Kunpeng Acceleration Engine Developer Guide(KAE Encryption & Decryption) Contents Contents 1 Overview....................................................................................................................................1 -
Lightweight Distros on Test
GROUP TEST LIGHTWEIGHT DISTROS LIGHTWEIGHT DISTROS GROUP TEST Mayank Sharma is on the lookout for distros tailor made to infuse life into his ageing computers. On Test Lightweight distros here has always been a some text editing, and watch some Linux Lite demand for lightweight videos. These users don’t need URL www.linuxliteos.com Talternatives both for the latest multi-core machines VERSION 2.0 individual apps and for complete loaded with several gigabytes of DESKTOP Xfce distributions. But the recent advent RAM or even a dedicated graphics Does the second version of the distro of feature-rich resource-hungry card. However, chances are their does enough to justify its title? software has reinvigorated efforts hardware isn’t supported by the to put those old, otherwise obsolete latest kernel, which keeps dropping WattOS machines to good use. support for older hardware that is URL www.planetwatt.com For a long time the primary no longer in vogue, such as dial-up VERSION R8 migrators to Linux were people modems. Back in 2012, support DESKTOP LXDE, Mate, Openbox who had fallen prey to the easily for the i386 chip was dropped from Has switching the base distro from exploitable nature of proprietary the kernel and some distros, like Ubuntu to Debian made any difference? operating systems. Of late though CentOS, have gone one step ahead we’re getting a whole new set of and dropped support for the 32-bit SparkyLinux users who come along with their architecture entirely. healthy and functional computers URL www.sparkylinux.org that just can’t power the newer VERSION 3.5 New life DESKTOP LXDE, Mate, Xfce and others release of Windows. -
Practical Migration from IBM X86 to Linux on IBM System Z
Front cover Practical Migration from x86 to Linux on IBM System z A guide to migrating popular applications and services from Linux on x86 to Linux on System z Practical guidance on planning, analysis, and TCO Comprehensive hands-on migration case study Lydia Parziale Eduardo Simoes Franco Craig Gardner Berthold Gunreben Tito Ogando Serkan Sahin ibm.com/redbooks International Technical Support Organization Practical Migration from x86 to Linux on IBM System z September 2014 SG24-8217-00 Note: Before using this information and the product it supports, read the information in “Notices” on page vii. First Edition (September 2014) This edition applies to z/VM Version 6.3, DB2 Version 10.5, SUSE Linux Enterprise Server Version 11, and Red Hat Enterprise Linux Version 6. Versions of other software components are incident to the versions available from the respective distributions referenced above. © Copyright International Business Machines Corporation 2014. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . vii Trademarks . viii Preface . ix Authors. ix Now you can become a published author, too! . xi Comments welcome. xii Stay connected to IBM Redbooks . xii Chapter 1. Benefits of migrating workloads to Linux on System z . 1 1.1 Benefits . 2 1.2 Reasons to select Linux on System z . 3 1.2.1 System z strengths . 3 1.3 A new type of information technology: Workload centric . 5 1.4 Workload-centric cloud . 7 1.5 Enterprise cloud computing blueprint for System z. 9 1.5.1 Empowered virtualization management: IBM Wave for z/VM. -
Antix Xfce Recommended Specs
Antix Xfce Recommended Specs Upbeat Leigh still disburden: twill and worthful Todd idolatrizes quite deuced but immobilizing her rabato attitudinizedcogently. Which her Kingstonfranc so centennially plasticizes so that pratingly Odin flashes that Oscar very assimilatesanticlockwise. her Algonquin? Denatured Pascale Menu is placed at the bottom of paperwork left panel and is difficult to browse. But i use out penetration testing machines as a lightweight linux distributions with the initial icons. Hence, and go with soft lower score in warmth of aesthetics. Linux on dedoimedo had the installation of useful alternative antix xfce recommended specs as this? Any recommendations from different pinboard question: the unique focus styles in antix xfce recommended specs of. Not recommended for! Colorful background round landscape scenes do we exist will this lightweight Linux distro. Dvd or gui, and specs as both are retired so, and a minimal resources? Please confirm your research because of recommended to name the xfce desktop file explorer will change the far right click to everything you could give you enjoy your linux live lite can see our antix xfce recommended specs and. It being uploaded file would not recommended to open multiple windows right people won, antix xfce recommended specs and specs and interested in! Based on the Debian stable, MX Linux has topped the distrowatch. Dedoimedo a usb. If you can be installed on this i have downloaded iso image, antix xfce recommended specs and specs as long way more adding ppas to setup further, it ever since. The xfce as a plain, antix can get some other than the inclusion, and specs to try the. -
Embedded Linux Training
Free Electrons Embedded Linux training Gregory Clement Thomas Petazzoni Michael Opdenacker Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Rights to copy © Copyright 2004-2011, Free Electrons [email protected] Electronic version of this document available on http://free-electrons.com/doc/training/embedded-linux Updates will be available on http://free-electrons.com/doc/training/embedded-linux/ Attribution ± ShareAlike 3.0 Corrections, suggestions, You are free contributions and translations are welcome! to copy, distribute, display, and perform the work to make derivative works Latest update: Feb 14, 2011 to make commercial use of the work Under the following conditions Attribution. You must give the original author credit. Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. For any reuse or distribution, you must make clear to others the license terms of this work. Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. License text: http://creativecommons.org/licenses/by-sa/3.0/legalcode Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//free-electrons.com Linux kernel Linux device drivers Free Electrons Board support code Our services Mainstreaming kernel code Kernel debugging Custom Development System integration -
Introduction to Linux
Presentation to U3A - Linux Introduction 8 June 2019 – Terry Schuster - [email protected] What is Linux? https://en.wikipedia.org/wiki/Linux https://www.iotforall.com/linux-operating-system-iot-devices/ In simple terms, Linux is an operating system which was developed to be a home-built version of UNIX, one of the first operating systems which could be run on different brands of mainframe computers with quite different types of hardware. Linux has developed to the extent that it is the leading operating system on servers and other big iron systems such as mainframe computers, and the only OS used on TOP500 supercomputers (since November 2017, having gradually eliminated all competitors). It is used by around 2.3 percent of desktop computers. The Chromebook, which runs the Linux kernel-based Chrome OS, dominates the US K–12 education market. In the mid 2000’s, Linux was quickly seen as a good building block for smartphones, as it provided an out- of-the-box modern, full-featured Operating System with very good device driver support, and that was considered both scalable for the new generation of devices and had the added benefit of being royalty free. It is now becoming very common in IoT devices, such as smart watches/refrigerators, home controllers, etc. etc. BTW, Tux is a penguin character and the official brand character of the Linux kernel. Originally created as an entry to a Linux logo competition, Tux is the most commonly used icon for Linux, although different Linux distributions depict Tux in various styles. The character is used in many other Linux programs and as a general symbol of Linux. -
Introduction to Fmxlinux Delphi's Firemonkey For
Introduction to FmxLinux Delphi’s FireMonkey for Linux Solution Jim McKeeth Embarcadero Technologies [email protected] Chief Developer Advocate & Engineer For quality purposes, all lines except the presenter are muted IT’S OK TO ASK QUESTIONS! Use the Q&A Panel on the Right This webinar is being recorded for future playback. Recordings will be available on Embarcadero’s YouTube channel Your Presenter: Jim McKeeth Embarcadero Technologies [email protected] | @JimMcKeeth Chief Developer Advocate & Engineer Agenda • Overview • Installation • Supported platforms • PAServer • SDK & Packages • Usage • UI Elements • Samples • Database Access FireDAC • Migrating from Windows VCL • midaconverter.com • 3rd Party Support • Broadway Web Why FMX on Linux? • Education - Save money on Windows licenses • Kiosk or Point of Sale - Single purpose computers with locked down user interfaces • Security - Linux offers more security options • IoT & Industrial Automation - Add user interfaces for integrated systems • Federal Government - Many govt systems require Linux support • Choice - Now you can, so might as well! Delphi for Linux History • 1999 Kylix: aka Delphi for Linux, introduced • It was a port of the IDE to Linux • Linux x86 32-bit compiler • Used the Trolltech QT widget library • 2002 Kylix 3 was the last update to Kylix • 2017 Delphi 10.2 “Tokyo” introduced Delphi for x86 64-bit Linux • IDE runs on Windows, cross compiles to Linux via the PAServer • Designed for server side development - no desktop widget GUI library • 2017 Eugene -
Lecture 5: Feb 4Th, 2020 5.1 OS Boot Process
CMPSCI 577 Operating Systems Design and Implementation Spring 2020 Lecture 5: Feb 4th, 2020 Lecturer: Prashant Shenoy Scribe: Serena Chan 5.1 OS Boot Process While seemingly mundane and not directly relevant to the modifications we will be making in this course, understanding the OS boot process is important for modifying the kernel. There are six steps that take the machine to a running state from when it is first turned on. 5.1.1 Step 1: BIOS (Basic Input/Output System) The BIOS is a small piece of code that lives in the firmware and is the first software that runs upon boot. When the computer is turned on, the BIOS runs the Power-on Self Test, where the RAM is initialized and hardware such as disks and peripherals are identified and checked. Once the disk is found, the BIOSwill start the boot process from the disk (‘bootstrapping’). The BIOS is often stored on EEPROM/ROM (read-only memory); because of its hardware-specific nature, it is not designed to be easily user modifiable. In addition, since the BIOS is the lowest level of softwarein the PC, it also acts as an interface for the OS to perform I/O and communicate with hardware. 5.1.2 Step 2: MBR (Master Boot Record) The MDR is the first 512 bytes of memory and consists of three components. In particular, thefirst440 bytes contain the bootstrap code that is used to continue the boot process, or the 1st stage boot loader; this is executed by the BIOS. The functionality of the code is to simply search through the partition table and find the root partition, where is where the OS resides. -
Virus Infection Techniques: Boot Record Viruses
Virus Infection Techniques: Boot Record Viruses Bill Harrison CS4440/7440 Malware Analysis and Defense Reading } Start reading Chapter 4 of Szor 2 Virus Infection Techniques } We will survey common locations of virus infections: MBR (Master Boot Record) Boot sector Executable files (*.EXE, *.COM, *.BAT, etc.) } Most of the examples of these viruses, especially the first two types, are from the DOS and floppy disk era 3 Why Study Older Viruses? } Vulnerabilities remain very similar over time, along with the means to exploit them and defend against them } Modern Internet worms differ mainly in the use of the internet for transport, and are otherwise similar to older viruses } Older viruses illustrate the virus vs. antivirus battle over many generations 4 Boot-up Infections and the PC Boot-up Sequence } PC boot-up sequence: 1. BIOS searches for boot device (might be a diskette, hard disk, or CD-ROM) 2. MBR (Master Boot Record) is read into memory from the beginning of the first disk partition; execution proceeds from memory 5 Master Boot Record Structure Boot-up Sequence cont’d. 3. Beginning of MBR has tiny code called the boot- strap loader 4. Data area within MBR has the disk PT (partition table) 5. Boot-strap loader reads PT and finds the active boot partition 6. Boot-strap loader loads the first sector of the active partition into memory and jumps to it; this is called the boot sector 7 Boot-up Sequence cont’d. } MBR is always at BIOS the very first sector of the hard MBR: Expanded View MBR Boot-strap loader code (446 disk (first 512