lecture6
... partition table. It first must determine if there is an extended DOS partition, then it must determine if there is a bootable partition specified in the partition table. 3. If the master boot code locates an extended partition on the disk, it loads the extended partition table that describes the fir ...
... partition table. It first must determine if there is an extended DOS partition, then it must determine if there is a bootable partition specified in the partition table. 3. If the master boot code locates an extended partition on the disk, it loads the extended partition table that describes the fir ...
The Linux Kernel and Acquiring Forensic Images of Hard Disks
... No official version of the Linux kernel, up through and including version 2.4, allowed a user land process to access the last sector of a hard disk or hard disk partition with an odd number of sectors. Although the inability to access this last sector did not affect normal operation of the system, i ...
... No official version of the Linux kernel, up through and including version 2.4, allowed a user land process to access the last sector of a hard disk or hard disk partition with an odd number of sectors. Although the inability to access this last sector did not affect normal operation of the system, i ...
EuroDesign embedded technologies GmbH
... In some cases, however, the automatic initialization fails and the user must configure system manually. The BIOS has a setup function in which many parameters will be initialized or in some cases changes will be make possible to this first. The configuration of the hardware is always the same in an ...
... In some cases, however, the automatic initialization fails and the user must configure system manually. The BIOS has a setup function in which many parameters will be initialized or in some cases changes will be make possible to this first. The configuration of the hardware is always the same in an ...
Linux+ Guide to Linux Certification Chapter Nine System Initialization
... on to ensure that hardware components are functional ...
... on to ensure that hardware components are functional ...
I/O - cs.rochester.edu - University of Rochester
... – Initialize mapping from logical block number to defect-free sectors! Logical disk partitioning! – One or more groups of cylinders! – Sector 0: master boot record loaded by BIOS firmware, which contains partition information! – Boot record points to boot partition ...
... – Initialize mapping from logical block number to defect-free sectors! Logical disk partitioning! – One or more groups of cylinders! – Sector 0: master boot record loaded by BIOS firmware, which contains partition information! – Boot record points to boot partition ...
BIOS (Basic Input Output Service)
... • A basic software program containing all BIOS functions is permanently stored in the ROM. • This software functions as a basic operating system. • Is responsible for starting the PC. • This hardware integrated with software is also referred to as firmware. ...
... • A basic software program containing all BIOS functions is permanently stored in the ROM. • This software functions as a basic operating system. • Is responsible for starting the PC. • This hardware integrated with software is also referred to as firmware. ...
BIOS Startup Firmware
... Because the firmware has access to system resources such as the network interfaces and stacks, mass storage, and file systems, the firmware can make modifications to OS and application code from outside the OS. Thus, the system can receive, validate, and implement updates and enhancements under the ...
... Because the firmware has access to system resources such as the network interfaces and stacks, mass storage, and file systems, the firmware can make modifications to OS and application code from outside the OS. Thus, the system can receive, validate, and implement updates and enhancements under the ...
CS111—Operating System Principles
... haltFlag = CLEAR; while (haltFlag not SET during the execution) { // increment PC; execute(IR); // IR = memory content of new PC ...
... haltFlag = CLEAR; while (haltFlag not SET during the execution) { // increment PC; execute(IR); // IR = memory content of new PC ...
Windows XP Boot Process
... • An x86-based computer first starts in real mode. In real mode, the processor disables certain features to allow compatibility with software designed to run on 8-bit and 16-bit processors. Ntldr then switches the processor to 32-bit mode, which allows access to large amounts of memory and enables W ...
... • An x86-based computer first starts in real mode. In real mode, the processor disables certain features to allow compatibility with software designed to run on 8-bit and 16-bit processors. Ntldr then switches the processor to 32-bit mode, which allows access to large amounts of memory and enables W ...
UNIX
... Once the BIOS loads the first sector of the boot device into RAM, the boot loader begins execution. In the case of a hard drive, this first sector is referred to as the Master Boot Record (MBR). The MBR contains the partition table describing the partitions defined on the hard drive. It also contain ...
... Once the BIOS loads the first sector of the boot device into RAM, the boot loader begins execution. In the case of a hard drive, this first sector is referred to as the Master Boot Record (MBR). The MBR contains the partition table describing the partitions defined on the hard drive. It also contain ...
slides
... A cylinder is the collection of all the same tracks across all the multiple disk surfaces. There is a time associated with turning heads on and off so that a different surface can be accessed. We call this overhead the headswitching time. ...
... A cylinder is the collection of all the same tracks across all the multiple disk surfaces. There is a time associated with turning heads on and off so that a different surface can be accessed. We call this overhead the headswitching time. ...
slides - Caltech
... began providing more detailed information to the OS • Frequently exposed as tables of data set up by the BIOS during bootstrap ...
... began providing more detailed information to the OS • Frequently exposed as tables of data set up by the BIOS during bootstrap ...
Formatting and Partitioning Hard Drives, and DOS
... Microsoft developed (DOS), in 1981. DOS was designed for the IBM Personal Computer DOS is a collection of programs and commands used to control the overall computer operation in a disk-based system Three sections make up DOS: Boot files File management files Utility files A simple operating sy ...
... Microsoft developed (DOS), in 1981. DOS was designed for the IBM Personal Computer DOS is a collection of programs and commands used to control the overall computer operation in a disk-based system Three sections make up DOS: Boot files File management files Utility files A simple operating sy ...
Run Standard Diagnostic Tests
... corrupted the file system or Master Boot Record (MBR). 3. A common mistake is a floppy disk being left in the drive. 4. Cables not connected to hard disk drive properly. ...
... corrupted the file system or Master Boot Record (MBR). 3. A common mistake is a floppy disk being left in the drive. 4. Cables not connected to hard disk drive properly. ...
Windows Vista Boot process
... The function of the Windows Boot Manager is to read the boot configuration data(BCD) and display an operating system selection menu, as NTLDR in Windows XP, A big difference is that the Windows Boot Manager is invoked by pressing the space bar instead of the F8 function key. The F8 key still remains ...
... The function of the Windows Boot Manager is to read the boot configuration data(BCD) and display an operating system selection menu, as NTLDR in Windows XP, A big difference is that the Windows Boot Manager is invoked by pressing the space bar instead of the F8 function key. The F8 key still remains ...
Booting and Shutting Down UNIX Flavored Operating Systems
... system is fully operational, but additional processes have to run in order to allow multiple users to log on to the system. The getty process listen for logins which is spawned from init. Graphical login systems include xdm, gdm, and dtlogin. ...
... system is fully operational, but additional processes have to run in order to allow multiple users to log on to the system. The getty process listen for logins which is spawned from init. Graphical login systems include xdm, gdm, and dtlogin. ...
Things to Know while installing Linux OS
... • Backup and Recovery - Easier backup and recovery. • Stability and efficiency - You can increase disk space efficiency by formatting disk with various block sizes. It depends upon usage. For example, if the data is lots of small files, it is better to use small block size. • Testing - Boot multiple ...
... • Backup and Recovery - Easier backup and recovery. • Stability and efficiency - You can increase disk space efficiency by formatting disk with various block sizes. It depends upon usage. For example, if the data is lots of small files, it is better to use small block size. • Testing - Boot multiple ...
OS Services System calls and their types
... computer resources – Protection and security - The owners of information stored in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each other • Protection involves ensuring that all access to system resources is con ...
... computer resources – Protection and security - The owners of information stored in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each other • Protection involves ensuring that all access to system resources is con ...
Booting a PC
... Since we can't actually load the kernel at physical address 0xf0100000, we will use the processor's memory management hardware to map virtual address 0xf0100000 -- the link address at which the kernel code expects to run -- to physical address 0x00100000 -- where the boot loader actually loaded the ...
... Since we can't actually load the kernel at physical address 0xf0100000, we will use the processor's memory management hardware to map virtual address 0xf0100000 -- the link address at which the kernel code expects to run -- to physical address 0x00100000 -- where the boot loader actually loaded the ...
Linux Pres1 - Parent Directory
... The recommended place to install boot Loader, unless the MBR already starts another operating system loader, such as System Commander or OS/2's Boot Manager. The MBR is a special area on your hard drive that is automatically loaded by your computer's BIOS, and is the earliest point at which Boot Loa ...
... The recommended place to install boot Loader, unless the MBR already starts another operating system loader, such as System Commander or OS/2's Boot Manager. The MBR is a special area on your hard drive that is automatically loaded by your computer's BIOS, and is the earliest point at which Boot Loa ...
Identify Steps in the Startup Process
... Master boot record (MBR) is the first sector of the first hard disk; a physically small but critical element in the startup process on x64 and x86-based computer. When a computer is booted, it processes a series of self-tests and then reads the MBR. The MBR contains instructions that locate the disk ...
... Master boot record (MBR) is the first sector of the first hard disk; a physically small but critical element in the startup process on x64 and x86-based computer. When a computer is booted, it processes a series of self-tests and then reads the MBR. The MBR contains instructions that locate the disk ...
DOS - InfoShare.tk
... MS-DOS is a disk-based, single-user, single-task operating system. These qualities make it one of the easiest disk operating systems to understand. ...
... MS-DOS is a disk-based, single-user, single-task operating system. These qualities make it one of the easiest disk operating systems to understand. ...