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On Apple Mac computers using Intel x86-64 processor architecture, the EFI system partition is initially left blank and unused for booting into macOS. [13] [14]However, the EFI system partition is used as a staging area for firmware updates [15] and for the Microsoft Windows bootloader for Mac computers configured to boot into a Windows partition using Boot Camp.
Purism's first products were two laptop computers. Since late 2015, they have made laptops of two sizes: Librem 13 and 15, featuring a 13 and a 15-inch screen, respectively. These products ship with Purism's own operating system, PureOS, a derivative of Debian GNU/Linux, and an optional Qubes OS USB drive. [20] [21] [22]
coreboot, formerly known as LinuxBIOS, [5] is a software project aimed at replacing proprietary firmware (BIOS or UEFI) found in most computers with a lightweight firmware designed to perform only the minimum number of tasks necessary to load and run a modern 32-bit or 64-bit operating system.
LILO (Linux Loader) is a bootloader for Linux and was the default boot loader for most Linux distributions [when? Unlike loadlin , it allowed booting Linux without having DOS on the computer. [ 3 ] As of 2009, most distributions have switched to GRUB as the default boot loader. [ 4 ]
All modern personal computer operating systems support GPT. Some, including macOS and Microsoft Windows on the x86 architecture, support booting from GPT partitions only on systems with EFI firmware, but FreeBSD and most Linux distributions can boot from GPT partitions on systems with either the BIOS or the EFI firmware interface.
The Linux kernel has been able to use EFI at boot time since early 2000s, [120] using the elilo EFI boot loader or, more recently, EFI versions of GRUB. [121] Grub+Linux also supports booting from a GUID partition table without UEFI. [19] The distribution Ubuntu added support for UEFI Secure Boot as of version 12.10. [122]
Some virtual machine infrastructure can directly import and export a boot image for direct installation to "bare metal", i.e. a disk. This is the standard technique for OEMs to install identical copies of an operating system on many identical machines: The boot image is created as a virtual machine and then exported, or created on one disk and then copied via a boot image control ...
The first-generation Nexus 7 tablet running Android, an operating system using the Linux kernel. While Linux-based operating systems are in common use in tablet computers, they are less frequently adopted as desktop computers. The criticism of Linux focuses on issues concerning use of operating systems which use the Linux kernel.