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kernel / pub / scm / boot / dracut / dracut / refs/tags/054
tag27f60dcb9f3320df1aea96b68acdbdb18289cef9
taggerHarald Hoyer <harald@redhat.com>Fri May 14 15:26:15 2021 +0200
object53337dfdc3ef58e257330d506fbe1a6044ea838a 
dracut-054
commit53337dfdc3ef58e257330d506fbe1a6044ea838a[log] [tgz]
authorHarald Hoyer <harald@redhat.com>Fri May 14 14:10:36 2021 +0200
committerHarald Hoyer <harald@hoyer.xyz>Fri May 14 15:21:11 2021 +0200
treeeb60987aec98fd1b4d7b135b664b4156a916df4c
parentb2cf61d97ff2de423793bcd187f869c60d74078c [diff]
docs: update NEWS.md and AUTHORS
2 files changed
tree: eb60987aec98fd1b4d7b135b664b4156a916df4c
  1. .github/
  2. docs/
  3. dracut.conf.d/
  4. install.d/
  5. man/
  6. modules.d/
  7. pkgbuild/
  8. shell-completion/
  9. src/
  10. test/
  11. tools/
  12. .astylerc
  13. .dir-locals.el
  14. .editorconfig
  15. .gitignore
  16. .kateconfig
  17. .kateproject
  18. .mailmap
  19. .packit.yml
  20. .shellcheckrc
  21. .vimrc
  22. AUTHORS
  23. configure
  24. COPYING
  25. dracut-catimages.sh
  26. dracut-functions.sh
  27. dracut-init.sh
  28. dracut-initramfs-restore.sh
  29. dracut-logger.sh
  30. dracut.conf
  31. dracut.sh
  32. lsinitrd.sh
  33. Makefile
  34. NEWS.md
  35. README.md
README.md

dracut

dracut is an event driven initramfs infrastructure.

Contributor Covenant Fedora-32 Fedora-33 Fedora-latest

dracut (the tool) is used to create an initramfs image by copying tools and files from an installed system and combining it with the dracut framework, usually found in /usr/lib/dracut/modules.d.

Unlike other implementations, dracut hard-codes as little as possible into the initramfs. The initramfs has (basically) one purpose in life -- getting the rootfs mounted so that we can transition to the real rootfs. This is all driven off of device availability. Therefore, instead of scripts hard-coded to do various things, we depend on udev to create device nodes for us and then when we have the rootfs‘s device node, we mount and carry on. This helps to keep the time required in the initramfs as little as possible so that things like a 5 second boot aren’t made impossible as a result of the very existence of an initramfs.

Most of the initramfs generation functionality in dracut is provided by a bunch of generator modules that are sourced by the main dracut script to install specific functionality into the initramfs. They live in the modules.d subdirectory, and use functionality provided by dracut-functions to do their work.

Currently dracut lives on github.com and kernel.org.

The tarballs can be found here: http://www.kernel.org/pub/linux/utils/boot/dracut/ ftp://ftp.kernel.org/pub/linux/utils/boot/dracut/

Git: https://github.com/dracutdevs/dracut.git http://git.kernel.org/?p=boot/dracut/dracut.git

Project Documentation: http://www.kernel.org/pub/linux/utils/boot/dracut/dracut.html

Project Wiki: http://dracut.wiki.kernel.org

See the github issue tracker for things which still need to be done and HACKING.md for some instructions on how to get started. There is also a mailing list that is being used for the discussion -- initramfs@vger.kernel.org. It is a typical vger list, send mail to majordomo@vger.kernel.org with body of ‘subscribe initramfs email@host.com’

Licensed under the GPLv2