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Merge pull request #16 from nix-community/kexec-tarballs

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README: reformat & remove duplicate sentence
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Jörg Thalheim 2022-09-05 08:06:52 +01:00 committed by GitHub
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README.md
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@ -11,18 +11,18 @@ It consists of the [kernel image](https://github.com/nix-community/nixos-images/
## Kexec tarballs ## Kexec tarballs
Kexec is a mechanism in Linux to load a new kernel from a running Linux to Kexec is a mechanism in Linux to load a new kernel from a running Linux to
replace the current kernel. This is useful for booting the Nixos installer from replace the current kernel. This is useful for booting the Nixos installer from
existing Linux distributions, such as server provider that do not offer a NixOS existing Linux distributions, such as server provider that do not offer a NixOS
option. After running kexec, the NixOS exists only in memory. At the time of option. After running kexec, the NixOS exists only in memory. At the time of
writing, this requires at least 2.5GB of RAM in the system. If not enough RAM writing, this requires at least 2.5GB of RAM in the system. If not enough RAM
is available, the initrd cannot be loaded. Because the NixOS runs only in RAM, is available, the initrd cannot be loaded. Because the NixOS runs only in RAM,
users can reformat all the system's discs to prepare for a new NixOS users can reformat all the system's discs to prepare for a new NixOS
installation. installation.
Currently, there are two variants of kexec: [nixos-kexec-installer](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-kexec-installer-x86_64-linux.tar.xz) Currently, there are two variants of kexec: [nixos-kexec-installer](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-kexec-installer-x86_64-linux.tar.xz)
and [kexec bundle](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/kexec-bundle-x86_64-linux). and [kexec bundle](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/kexec-bundle-x86_64-linux).
The nixos-kexec-installer tarball is the new preferred method. The nixos-kexec-installer tarball is the new preferred method.
It can be booted as follows by running these commands as root: It can be booted as follows by running these commands as root:
@ -37,4 +37,4 @@ This allows for easier integration into automated nixos installation scripts, si
The tarball is also designed to be run from NixOS, which can be useful for new installations The tarball is also designed to be run from NixOS, which can be useful for new installations
We also have [kexec-bundle](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/kexec-bundle-x86_64-linux), We also have [kexec-bundle](https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/kexec-bundle-x86_64-linux),
which is a self-extracting archive from [nixos-generators](https://github.com/nix-community/nixos-generators). This version unpacks itself to `/` and possibly overlays the existing `/nix/store` with its own files. with its own files. which is a self-extracting archive from [nixos-generators](https://github.com/nix-community/nixos-generators). This version unpacks itself to `/` and possibly overlays the existing `/nix/store` with its own files.