Access controlUsers and groups are used on GNU/Linux for access control. The superuser (root) has complete access to the operating system and its configuration; it is intended for administrative use only. Unprivileged users can use the su and sudo programs for controlled privilege escalation.
This subject of security includes a wide range of topics.
In order to boot Arch Linux, you must install a Linux-capable boot loader to the Master Boot Record or the GUID Partition Table. The boot loader is the first piece of software started by the BIOS or UEFI. It is responsible for loading the kernel with the wanted kernel parameters, and initial RAM disk before initiating the boot process. See below for boot loaders available.
- Boot loaders only need to support the file system on which kernel and initramfs reside (the file system on which
- As GPT is part of the UEFI specification, all UEFI boot loaders support GPT disks. GPT on BIOS systems is possible, using either "hybrid booting", or the new GPT-only protocol. This protocol may however cause issues with certain BIOS implementations; see rodsbooks for details.
- Encryption mentioned in file system support is filesystem-level encryption, it has no bearing on block-level encryption.
|GRUB||Yes||Yes||Yes||without zstd compression||Yes||Yes||Yes||Yes||On BIOS/GPT configuration requires a BIOS boot partition.|
|systemd-boot||No||Yes||Yes||No||No||No||ESP only||No||Cannot launch binaries from partitions other than ESP.|
|Syslinux||Yes||Partial||Partial||without: multi-device volumes, compression, encryption||without:
||No||Yes||v4 on MBR only||No support for certain file system features |
|rEFInd||No||Yes||Yes||without: encryption, zstd compression||without encryption||without tail-packing feature||Yes||No||Supports auto-detecting kernel parameters without explicit configuration.|
|Clover||emulates UEFI||Yes||Yes||No||Unknown||No||Yes||No||Main target audience is Hackintosh users.|
|LILO||Yes||No||Unknown||Unknown||Unknown||Unknown||Unknown||MBR only ||Deprecated. Does not support GUID Partition Table.|
|GRUB Legacy||Yes||No||Yes||No||No||Yes||Yes||v4 only||Deprecated. Does not support GUID Partition Table.|
- Rod Smith - Managing EFI Boot Loaders for Linux
- Rod Smith - rEFInd, a fork or rEFIt
- Linux Kernel Documentation on EFISTUB
- Linux Kernel EFISTUB Git Commit
- Rod Smith's page on EFISTUB
- rEFInd Documentation for booting EFISTUB Kernels
Graphical user interface
Arch Linux provides netctl for network management.
netctl supports wired connections on desktops and servers, as well as wireless setups and roaming for mobile users, facilitating easy management of network profiles. For alternatives see Network managers.
Packages in Arch Linux are built using makepkg and a custom build script for each package (known as a PKGBUILD). Once packaged, software can be installed and managed with pacman. PKGBUILDs for software in the official repositories are available from the ABS tree; thousands more are available from the (unsupported) Arch User Repository.
- Web Browsers (idea)
- Multimedia in Arch Linux (could do without "in Arch Linux")
- VirtualBox, QEMU, VMware (or a separate "virtualization" overview?)