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The Primary Bootloader (PBL), which is stored in the Boot ROM [3] is the first stage of the boot process. This code is written by the chipset manufacturer. [4] The PBL verifies the authenticity of the next stage. On Samsung smartphones, the Samsung Secure Boot Key (SSBK) is used by the boot ROM to verify the next stages. [5]
Free software (most vendors) Yes No Unix-like Anything Fedora Media Writer: The Fedora Project: GNU GPL v2: Yes No Linux, macOS, Windows Fedora: GNOME Disks: Gnome disks contributors GPL-2.0-or-later: Yes No Linux Anything LinuxLive USB Creator (LiLi) Thibaut Lauzière GNU GPL v3: No No Windows Linux remastersys: Tony Brijeski GNU GPL v2: No [2] No
With boot times more of a concern now than in the 1980s, the 30- to 60-second memory test adds undesirable delay for a benefit of confidence that is not perceived to be worth that cost by most users. Most clone PC BIOSes allowed the user to skip the POST RAM check by pressing a key, and more modern machines often performed no RAM test at all ...
Early BIOS versions did not have passwords or boot-device selection options. The BIOS was hard-coded to boot from the first floppy drive, or, if that failed, the first hard disk. Access control in early AT-class machines was by a physical keylock switch (which was not hard to defeat if the computer case could be opened).
Secure Boot can also be placed in "Custom" mode, where additional public keys can be added to the system that do not match the private key. [73] Secure Boot is supported by Windows 8 and 8.1, Windows Server 2012 and 2012 R2, Windows 10, Windows Server 2016, 2019, and 2022, and Windows 11, VMware vSphere 6.5 [74] and a number of Linux ...
When debugging a concurrent and distributed system of systems, a bootloop (also written boot loop or boot-loop) is a diagnostic condition of an erroneous state that occurs on computing devices; when those devices repeatedly fail to complete the booting process and restart before a boot sequence is finished, a restart might prevent a user from ...
An MBR loader, such as Air-Boot, replaces the standard boot code in track 0 with code that displays a selection menu and loads the selected system. Some, e.g., Air-Boot, can be configured either automatically or by the user at boot time, rather than requiring an external configuration menu.
The tablet portion of the Transformer Book Duet is 0.5 inches (1.3 cm) thick [6] with a 13.3 inch touch screen available in 1366×768 or 1920×1080 resolution. [2] [7] [8] The back of the screen is a rubberized black plastic, with the volume and power buttons embedded at the top right of the lid. [8]