Then the PROM loads the primary boot program. Booting an Operating System. Windows 8), the IPL loads a program called NTLDR.
Chapter 1. 0 The Boot Process (Reference)This chapter describes the hardware used for booting on SPARC and x. This is a list of overview information in this chapter. For instructions on booting a system, see Chapter 8, Booting a SPARC System (Tasks), or Chapter 9, Intel: Booting a System (Tasks). SPARC: The Boot PROMEach SPARC system has a PROM (programmable read- only memory) chip with a program called the monitor.
The monitor controls the operation of the system before the kernel is available. When. a system is turned on, the monitor runs a quick self- test procedure that checks things such as the hardware. If no errors are found, the system begins the automatic boot process. SPARC only - Some older systems may require PROM upgrades before they will work with the Solaris system software.
![Program Reads Loads Boot Menu Program Reads Loads Boot Menu](https://ipowerthailand.files.wordpress.com/2010/06/kerio-setting-3.gif)
![Program Reads Loads Boot Menu Program Reads Loads Boot Menu](https://ipowerthailand.files.wordpress.com/2010/06/e0b884e0b8ade0b899e0b982e0b8942.jpg)
Table 1. 0- 2 SPARC: Description of SPARC Boot Process. Boot Phase Description Boot PROM 1. The PROM displays. Then the PROM loads the primary. Boot Programs 3. After ufsboot program is loaded, the ufsboot program loads the kernel. Kernel Initialization 5.
The kernel initializes itself. When the kernel has loaded. The kernel creates a user process and. The /sbin/init process starts the run control (rc). These scripts (/sbin/rc*) check. The PC BIOSBefore the kernel is started, the system is controlled by the read- only- memory (ROM) Basic Input/Output. System (BIOS), the firmware interface on a PC.
NTLDR loads the associated file listed in boot. If the boot loader timeout option in boot.ini is set to 0, the NTLDR boot menu.
Hardware adapters can have an onboard BIOS that displays the physical characteristics of the device. During the startup sequence, the PC BIOS checks for the presence of any adapter BIOS and if found.
![Program Reads Loads Boot Menu Program Reads Loads Boot Menu](http://thegeekdiary.com/wp-content/uploads/2013/12/Boot-process-x86.png)
Boot Options in a Boot.ini File. Then the PROM loads the primary boot program. The Boot Solaris menu allows you to select the. The secondary boot program, boot.bin or ufsboot, reads the. The Windows 2000 boot process. The Windows 2000 loader loads the.
Each individual adapter's BIOS runs self- test diagnostics and displays device. Boot Subsystems. Booting an x. Solaris Boot Options screen to specify the way in which a system should.
Additionally, identifying attached devices or booting from the network or a local CD- ROM drive uses. Configuration Assistant/Boot Diskette. Table 1. 0- 3 describes both interfaces used to. Table 1. 0- 3 x. 86: x. Boot Subsystems. Boot Subsystem This Subsystem Menu Displays .. Configuration Assistant/Boot Diskette Solaris Device Configuration Assistant, identifies device attaches.
Solaris Boot Screen, presents a list of bootable devices such as disk, network. CD- ROM. The system automatically. The. other options enable you to specify boot options or enter the boot interpreter (see boot(1. M)). During the boot process, the boot subsystem menus display different device and booting options. You can stop the boot process when the boot subsystem menus are displayed or. The following section provides examples of each subsystem screen. Screen displays will vary based.
![Program Reads Loads Boot Menu Program Reads Loads Boot Menu](http://ipowerthailand.files.wordpress.com/2010/06/kerio-setting-2.gif?w=530&h=371)
During the Configuration Assistant phase, the system: Scans for connected devices. Displays the identified devices. During the Boot phase, the system: Displays a list of devices from which to boot. The first device listed is the default. Enables you to change the default boot device. Examples of device configuration during each phase are provided below. Device output will vary based.
Configuration Assistant Phase. During this phase, the Configuration Assistant attempts to identify devices on the system. Solaris Device Configuration Assistant.
The Solaris(TM) 2. Intel Platform Edition) Device Configuration. Assistant scans to identify the devices on the system, lists. Solaris software. This program must be used whenever you. Solaris operating environment or change the hardware. When the. system reboots, choose Partial Scan or Help.
To. identify devices that on not in this list, choose Device Tasks. Select the Boot Tasks option to change. Select one of the identified devices to boot Solaris. Table 1. 0- 5 x. 86: Description of x. Boot Process. Boot Phase Description BIOS 1. When the system is turned.
PC BIOS runs self- test diagnostics to verify the system's hardware and memory. The system begins.
If errors are found, error messages are displayed describing. Additional hardware devices'.
BIOS are run at this time. The BIOS boot program tries to read the first physical sector. This first disk sector on the. If. no mboot file is found, an error message is displayed.
Boot Programs 3. If there is more than one bootable partition, bootblk reads. This step only occurs if there is more than one bootable partition present on. The default action is to load and execute the kernel. Kernel Initialization 8. The kernel. initializes itself and begins loading modules, using ufsboot to read the files.
When. the kernel has loaded enough modules to mount the root file system, it unmaps the fsboot. The kernel creates a user process and starts the /sbin/init process, which starts. The /sbin/init process starts the run control (rc) scripts.
These scripts (/sbin/rc*) check and mount.