Windows 2008 Server Boot Process
5:04 PM- System is powered on
- The CMOS loads the BIOS and then runs POST
- Looks for the MBR on the bootable device
- Through the MBR the boot sector is located and the BOOTMGR is loaded
- BOOTMGR looks for active partition
- BOOTMGR reads the BCD file from the \boot directory on the active partition
- The BCD (boot configuration database) contains various configuration parameters( this information was previously stored in the boot.ini)
- BOOTMGR transfer control to the Windows Loader (winload.exe) or winresume.exe in case the system was hibernated.
- Winloader loads drivers that are set to start at boot and then transfers the control to the windows kernel.
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