https://aznot.com/index.php?action=history&feed=atom&title=OpenWest_2014%2FBooting_Linux 2026-04-30T07:22:32Z Revision history for this page on the wiki MediaWiki 1.41.0 https://aznot.com/index.php?title=OpenWest_2014/Booting_Linux&diff=47&oldid=prev 2014-05-11T15:25:56Z

<p></p> <p><b>New page</b></p><div>by Mike Lovell<br /> <br /> Slides - http://baldr.dev-zero.net<br /> * http://baldr.dev-zero.net/openwest-2014-booting-a-linux-system.pdf<br /> <br /> Boot Process: Platform Init -&gt; Bootloader -&gt; Kernel Init -&gt; Init<br /> <br /> Platform Init:<br /> * Firmware boot<br /> * BIOS (Award, AMI, Phoenix, Coreboot on Chromebooks)<br /> * UEFI<br /> * Low level hardware initialization<br /> * Pass control from BIOS to bootloader:<br /> ** Find boot loader through MBR or GPT<br /> ** Preboot eXecution Environment (PXE)<br /> <br /> Bootloader:<br /> * Grub, Lilo, Syslinux, uBoot, iPXE<br /> * Loads and execute kernel<br /> <br /> Kernel Init:<br /> * reinitialize hardware with OS drivers<br /> * load kernel modules<br /> * initrd (old) / initramfs (newer)<br /> * mount root<br /> <br /> Init:<br /> * First process the kernel runs<br /> * Kernel Process PID 1<br /> * Responsible for starting all other applications<br /> * Traditionally been sysvinit, now upstart/systemd/openrc<br /> <br /> -<br /> <br /> UEFI<br /> * (Unified) Extensible Firmware Interface<br /> * Most implementations based on the Open Source reference implementation, Tianocore<br /> * GPT<br /> ** Supports GPT and larger than 2TB boot drives<br /> ** EFI System Partition Table<br /> ** Default application at EFI\Boot\bootx64.efi<br /> * Secure Boot<br /> * Not DRM</div>

Kenneth